Corrosion-Free · IP66/IP67 · ATEX Zone 1/2
FRP / GRP
Enclosures & Junction Boxes Manufacturer · Supplier · Exporter
Complete range of FRP/GRP electrical enclosures, junction boxes, pull boxes, instrument enclosures, control panels, canopies, meter boxes, and cable management housings. Isophthalic, vinyl ester, and epoxy resin systems. IP66/IP67/IP68, ATEX Zone 1/2, NEMA 4X rated. Serving chemical, oil & gas, marine, water treatment, and power generation industries globally.
IP66 / IP67 / IP68 NEMA 4X / NEMA 12 ATEX II 2G/3G IEC 60529 IECEx UL Listed BS EN 62208
Search terms FRP junction box manufacturer GRP enclosure supplier fiberglass junction box exporter ATEX FRP enclosure IP66 GRP junction box NEMA 4X fiberglass enclosure FRP electrical enclosure GRP control panel enclosure FRP canopy manufacturer GRP meter box corrosion resistant junction box GRP pull box FRP instrument enclosure chemical resistant electrical box offshore FRP enclosure
Product Catalog
FRP/GRP Enclosure — Full Range
All enclosures manufactured to documented quality control procedures. IP rating tested per IEC 60529. ATEX certification from notified body. UL listing on selected ranges. Third-party inspection and factory acceptance testing available.
FRP Standard Junction Box
IEC 60529 · BS EN 62208 · NEMA 250 · UL 508A
Hand lay-up or SMC (sheet moulding compound) GRP junction boxes for electrical cable terminations and connections in corrosive, wet, and outdoor industrial environments. Halogen-free option available. Standard DIN rail and mounting plate inside.
- IP RatingIP65 (standard) · IP66 · IP67 (submersible) · IP68 (continuous submersion)
- NEMA RatingNEMA 4X (corrosion resistant, watertight)
- Size Range (mm)100×100×80 to 800×600×300 mm (H×W×D) · Custom
- Wall Thickness3.0 – 5.0 mm (resin / glass fibre laminate)
- Lid FixingSS 316 stainless screws / quarter-turn fasteners / padlockable hasp
- GasketNeoprene (standard) · EPDM (chemical service) · Silicone (high temp)
- Gland PlatesFRP or SS 316 gland plate — blank (field drilled) or pre-drilled per client spec
- Resin SystemsIsophthalic (standard) · Vinyl Ester (chemical) · Epoxy (offshore)
- ColourLight grey (RAL 7035 standard) · Yellow · Green · Custom RAL
- Temp. Range-40°C to +90°C (ISO) · -40°C to +130°C (VE) · -50°C to +120°C (Epoxy)
- UV ResistanceUV-stabilised gel coat — outdoor rated. No fading / chalking.
- Internal FittingsDIN rail (35 mm) · Earth bar · Mounting plate (SS or FRP) · Cable entries bottom/sides/top
- Fire RatingUL94 V-0 (halogen-free FR grade) · UL94 V-1 (standard FR)
- IK RatingIK08 (standard) · IK10 (impact resistant) per IEC 62262
IP66 / IP67 NEMA 4X IEC 60529 BS EN 62208 UL 508A UL94 V-0
ATEX Certified FRP Junction Box
ATEX Directive 2014/34/EU · IECEx · EN 60079-0 · EN 60079-7
Explosion-proof and increased-safety (Ex-e) FRP junction boxes for hazardous area Zone 1 (IIB/IIC gases) and Zone 2. ATEX certified by a European Notified Body. IECEx certified for global export. Non-sparking GRP material — safe for hydrogen, acetylene, and methane zones.
- ATEX MarkingII 2G Ex eb IIC T6…T4 Gb / II 3G Ex ec IIC T6 Gc
- Zone SuitabilityZone 1 (II 2G Ex-e) · Zone 2 (II 3G Ex-ec) · Zone 21/22 (dust)
- Explosion GroupIIC (hydrogen, acetylene) · IIB (ethylene) · IIA (propane)
- Temp. ClassT6 (+85°C max surface) · T5 (+100°C) · T4 (+135°C)
- IP RatingIP66 minimum (Ex-e requirement) · IP67 available
- CertificationATEX 2014/34/EU + IECEx (for Middle East, Australia, Asia)
- Notified BodyDEKRA / BASEEFA / Bureau Veritas / PTB (NB number on nameplate)
- Terminal BlocksATEX-certified terminals — screw or spring-clamp, 2.5–6 mm² (standard)
- Gland EntriesATEX-certified cable glands (M20–M63) — brass nickel-plated or SS 316
- Resin SystemsVinyl Ester (standard for Ex) · Epoxy · Anti-static surface resistivity ≤10⁹ Ω
- Anti-static Req.EN 60079-0 Cl.7.4 — surface resistivity ≤10⁹ Ω (mandatory IIC zones)
- Size Range100×100×80 to 600×600×250 mm · Custom large enclosures on request
- EarthingInternal + external M6 SS earth stud — mandatory for all ATEX enclosures
ATEX Zone 1 IECEx IP66/IP67 EN 60079-0 EN 60079-7 IIC / IIB
FRP Pull Box / Draw Box
IEC 60529 · NEMA 250 · NEC Art. 314 (US)
Large-volume GRP pull boxes for cable pulling access, cable splicing, and cable transition points in underground or overhead conduit runs. Non-metallic — no corrosion in coastal, chemical, or buried applications. Heavy-duty construction with flush or recessed lid and SS 316 hardware.
- PurposeCable pull access · Cable splicing · Conduit junction · Cable transition (metallic to non-metallic)
- IP RatingIP66 (above ground) · IP68 (buried / submerged)
- NEMA RatingNEMA 4X
- Size Range200×200×150 to 1200×900×600 mm · Custom sizes
- Wall Thickness5.0 – 10.0 mm (heavy duty hand lay-up)
- LidFlush removable lid · Hinged · Padlockable SS 316 hasps
- Conduit EntriesBlank (field drilled) or factory pre-drilled to client conduit layout drawing
- Burial DepthIP68 rated to 3 m continuous submersion (30 min per IEC 60529)
- Load Rating (buried)Trafficked lid option: Class C250 (2.5 tonne) per BS EN 124
- Resin SystemsISO (above ground) · VE (chemical / buried) · Epoxy (offshore)
IP66 / IP68 NEMA 4X NEC Art.314 BS EN 124 C250
FRP Standard Junction Box — Size & Weight Reference
Standard range — all IP66 rated, isophthalic resin, RAL 7035 grey. Custom sizes, higher IP ratings, ATEX certification, and alternative resins available on request.
| Cat. Ref. | H × W × D (mm) | Gland Area (mm) | Max. Cable Entries | DIN Rail (mm) | Weight (kg) | Lid Fixings |
|---|---|---|---|---|---|---|
| JB-1008 | 100 × 100 × 80 | 60 × 80 | 4 × M20 | — | 0.3 | 4 × M5 SS screws |
| JB-1512 | 150 × 120 × 90 | 110 × 80 | 6 × M20 | 100 mm | 0.5 | 4 × M5 SS screws |
| JB-2015 | 200 × 150 × 100 | 160 × 110 | 8 × M20 | 150 mm | 0.8 | 4 × M6 SS screws |
| JB-3020 | 300 × 200 × 120 | 260 × 160 | 12 × M25 | 200 mm | 1.5 | 6 × M6 SS screws |
| JB-4030 | 400 × 300 × 150 | 360 × 260 | 16 × M32 | 300 mm | 3.0 | 8 × M6 SS screws |
| JB-5040 | 500 × 400 × 200 | 460 × 360 | 20 × M32 | 400 mm | 5.5 | 8 × M8 SS screws |
| JB-6050 | 600 × 500 × 250 | 560 × 460 | 24 × M40 | 500 mm | 9.0 | 10 × M8 SS screws |
| JB-8060 | 800 × 600 × 300 | 760 × 560 | 30 × M50 | 600 mm | 15.0 | 12 × M8 SS screws |
| Custom | Up to 2000 × 1500 × 800 | Per design | Per design | Multiple rails | Per design | Quarter-turn / hasp |
H = Height · W = Width · D = Depth. Gland area is the available gland plate area (blank, field drilled). DIN rail length is for 35 mm standard DIN rail. All screws SS 316. Maximum cable entries shown for M20/M25/M32 glands at standard spacing — actual depends on gland sizes specified. ATEX boxes have reduced entry options due to minimum insulation distance requirements.
FRP Instrument Enclosure / Analyser House
IEC 60529 · ATEX · IECEx · NEMA 4X / 7 · ISA S71.04
Purpose-built FRP enclosures for field-mounted instruments — pressure transmitters, flow computers, analysers, RTUs, and PLCs. Thermostatically controlled heating / cooling. Purged and pressurised option (Ex-p) for ATEX Zone 1. Walk-in analyser shelters for complex instrumentation packages.
- TypesSingle instrument box · Multi-instrument box · Purge & pressurised (Ex-p) · Analyser shelter / walk-in
- IP RatingIP66 / IP67
- ATEX ProtectionEx-e (increased safety) · Ex-p (purged / pressurised) · Ex-d (flameproof) on request
- Purge TypeType X (Zone 0→safe) · Type Y (Zone 1→Zone 2) · Type Z (Zone 2→safe) per IEC 60079-13
- Insulation25–50 mm PIR foam insulation option — maintains +5°C internal at -40°C ambient
- HeatingAnti-condensation heater 25–100W (SS316 sheathed, ATEX rated option)
- CoolingThermoelectric cooler option for hot climates (up to +70°C ambient)
- AccessSingle door (standard) · Double door (wide) · Front + rear access
- Viewing WindowAnti-UV polycarbonate window (IEC 60079-7 compliant for Ex-e)
- MountingPipe-mount (2″ pipe) · Wall-mount · Post-mount · Floor-standing legs
- Temp. Range-50°C to +130°C (VE resin, uninsulated) · Internal maintained -20°C to +50°C (insulated)
- Size250×200×150 mm (single instrument) to 2000×1200×500 mm (multi-instrument)
ATEX Ex-e / Ex-p IP66/IP67 NEMA 4X IECEx IEC 60079-13
FRP Control Panel Enclosure
IEC 62208 · IEC 61439 · NEMA 4X · UL 508A
Floor-standing and wall-mounted GRP control panel enclosures for MCCs (motor control centres), remote I/O panels, PLC panels, and distribution boards in corrosive and outdoor environments. Full internal framework and back-panel options.
- TypesFloor-standing (single / double door) · Wall-mounted · Free-standing with plinth · Multi-bay modular
- IP RatingIP54 (standard indoor) · IP65 · IP66 (outdoor)
- NEMA RatingNEMA 4X (corrosion resistant)
- Standard Sizes (HWD)600×400×200 to 2200×800×600 mm · Modular bay widths: 400/600/800 mm
- DoorSingle door · Double door (split) · Glazed inspection window · ATEX-certified window
- Internal StructureGRP or SS 316 back-plate · 35 mm DIN rails · Top/bottom cable entries · Internal lighting (ATEX rated)
- Locking3-point locking rod mechanism · Padlockable · Key lock · Quarter-turn inserts
- VentilationFiltered ventilation grille · Fan + filter (thermostat controlled) · Sealed (no ventilation — IP66)
- ResinISO (standard) · VE (chemical plant) · Epoxy (offshore, marine)
- StandardsIEC 62208 (empty enclosures) · IEC 61439-1 (assemblies) · UL 508A (USA)
IP66 NEMA 4X IEC 62208 IEC 61439 UL 508A
FRP Telecom / Network Enclosure
IEC 60529 · IP66/IP67 · ETSI EN 300 019
GRP enclosures for outdoor telecom, SCADA, fibre optic, and network equipment. Non-metallic — zero RF shielding interference. UV stable, thermally insulated, and antenna-transparent. Used for remote monitoring units, RTUs, and communication hubs in industrial sites.
- Key AdvantageRF-transparent (non-metallic) — no antenna signal attenuation vs. steel/aluminium
- IP RatingIP66 / IP67
- ThermalIntegral PIR foam insulation option — maintains internal temp within ±15°C of ambient
- EMCNo shielding (RF transparent) — add internal metallic liner if shielding required
- Size Range300×250×150 to 1000×800×400 mm
- AccessFront door · Top entry · Rear cable entry · Pole/wall mount brackets included
- ResinISO (standard) · VE (coastal / chemical atmospheres)
- StandardsIEC 60529 · ETSI EN 300 019 (telecom environment classes)
RF Transparent IP67 ETSI EN 300 019 SCADA
IP Rating Reference — IEC 60529
IP code = Ingress Protection. First digit = solid particle protection. Second digit = liquid ingress protection. FRP enclosures routinely achieve IP66 and IP67 due to precision moulding and continuous gasket sealing.
| IP Code | Solid Protection (1st digit) | Liquid Protection (2nd digit) | Test Condition | Typical FRP Application |
|---|---|---|---|---|
| IP54 | 5 — Dust protected (limited ingress) | 4 — Splash proof (all directions) | Dust chamber 8 hrs + 10 L/min spray | Indoor control panels, non-washdown areas |
| IP65 | 6 — Dust tight (zero ingress) | 5 — Hose-directed water jet | Dust-tight + 12.5 L/min from 3 m nozzle | Outdoor junction boxes, general industrial |
| IP66 | 6 — Dust tight | 6 — Powerful water jet | Dust-tight + 100 L/min from 3 m nozzle | Offshore, washdown, chemical plant (most common) |
| IP67 | 6 — Dust tight | 7 — Temporary immersion 1 m / 30 min | Submerged 1 m depth, 30 minutes | Underground / buried, flood-prone areas |
| IP68 | 6 — Dust tight | 8 — Continuous immersion (defined depth) | Manufacturer-specified depth/time (typically 3 m / continuous) | Subsea, permanently buried, underwater installations |
| IP69K | 6 — Dust tight | 9K — High-pressure / high-temp steam jet | 80 bar steam at 80°C, 0.1–0.15 m distance | Food processing, pharmaceutical CIP washdown |
FRP Equipment Canopy / Shelter
BS EN 13121 · ASME RTP-1 · Custom structural design
Prefabricated FRP/GRP canopies and shelters for protecting outdoor equipment — pumps, valves, meters, analysers, and electrical panels — from weather, UV, and chemical atmosphere. Faster to install than brick/block buildings. Full UV protection, no painting required.
- TypesSingle-slope lean-to · Apex (A-frame) · Flat roof · Curved roof · Walk-in shelter
- Standard Sizes600×600×900 mm (small pump) to 6000×3000×3000 mm (walk-in) · Custom any size
- Wall ConstructionSingle-skin GRP panel · Sandwich (foam-cored) for thermal insulation · Double-skin with drainage channel
- Wall Thickness4–6 mm (single skin) · 40–100 mm (insulated sandwich panel)
- Structural FramePultruded GRP box section frame · SS 316 frame (offshore) · GRP stud + rail
- Roof Load≥ 0.75 kN/m² (snow load) · Wind load to project site specification
- AccessHinged panel (small) · Double door (walk-in) · Removable panel access
- VentilationLouvred vent panels · ATEX-rated explosion relief panel option · Mesh insect screen
- Resin SystemsISO (general) · VE (chemical) · Phenolic (fire rated — offshore / marine)
- ColourLight grey (RAL 7035) · Yellow · Green · Custom RAL integral colour
- Fire RatingClass I (ASTM E84 · FR grade) · IMO A.653 (phenolic offshore)
- InstallationPre-drilled for anchor bolts · Modular panel design — flat-packed for offshore/remote site
GRP Sandwich Panel BS EN 13121 FR Class I UV Stable Flat-pack supply
FRP Meter Box / Kiosk
IEC 60529 · BS 8546 · NEMA 4X · Utility standards
GRP meter boxes, utility kiosks, and service connection boxes for electricity, gas, and water meters. Vandal-resistant, lockable, and UV-stable. Widely used by utilities for outdoor metering installations — replaces painted steel and GI sheet boxes that rust within 3–5 years.
- TypesSingle-meter box · Multi-meter kiosk · Distribution kiosk · Padmount switchgear housing
- IP RatingIP44 (min. utility) · IP54 · IP65 · IP66
- IK RatingIK08 (standard) · IK10 (vandal resistant) per IEC 62262
- Standard Sizes400×300×200 to 1800×800×500 mm · Custom per utility company standard
- LockingPadlockable hasps · Key lock · Utility company master key option
- Resin SystemsISO (standard utility) · VE (gas / chemical utility)
- ColourElectricity: Yellow · Gas: Yellow · Water: Blue · Custom per utility spec
- Standards Ref.BS 8546 (UK electrical) · DEWA / SEWA / ADDC specs (UAE utilities) · Utility project specs
- Service Life30+ years maintenance-free vs. 5–8 years painted GI steel box
IP65 / IP66 IK10 BS 8546 NEMA 4X Utility
Non-Magnetic / Non-Conductive FRP Enclosure
IEC 60529 · Bespoke to project spec
Fully non-metallic GRP enclosures for applications requiring non-magnetic and non-conductive housings. Used adjacent to MRI equipment, compass decks on vessels, explosive detection equipment, and high-voltage isolation applications.
- Key PropertyZero metal content — fully non-magnetic, non-conductive
- Electrical Resist.Surface resistivity >10¹² Ω (standard) · Anti-static grades <10⁹ Ω (ATEX IIC)
- HardwareAll fittings in GRP, PEEK, or nylon — no metallic parts inside or outside
- IP RatingIP65 / IP66
- ApplicationsMRI rooms · Compass decks · Nuclear / radiation areas · Explosive detection labs · High-voltage isolation
- Size RangeCustom — any size. Standard junction box range also available non-metallic hardware.
- ResinEpoxy (best electrical properties) · VE · ISO
Non-Magnetic Non-Conductive IP66 MRI Safe
FRP Submerged / Submersible Enclosure
IEC 60529 IP68 · Bespoke structural design
GRP enclosures rated IP68 for permanently submerged or flood-prone installations — pump wet wells, underground valve pits, marine below-waterline, and estuary monitoring. Pressure-tested at factory to 2× rated submersion depth.
- IP RatingIP68 — continuous submersion to client-specified depth (typically 3 m / 10 bar)
- Pressure TestFactory hydrostatic test at 2 × rated depth pressure — test certificate supplied
- GasketDouble O-ring seal (primary + secondary) · Neoprene / EPDM / Nitrile
- Lid FixingsSS 316 Allen key bolts — positive mechanical seal, not screws
- Cable EntryIP68 certified cable glands with inner compression seal (M20–M40)
- ResinVE (seawater / chemical submersion) · Epoxy (oil / hydrocarbon)
- ApplicationsPump wet wells · Below-waterline marine · Tidal zone · Underground LV junction
IP68 Factory Hydro Tested VE Resin Submersible
FRP Solar / PV Panel Enclosure & Combiner Box
IEC 60529 · IEC 62548 (PV systems) · UL 1741
UV-stable GRP enclosures for solar PV string combiner boxes, inverter housings, and DC distribution boards. Non-corrosive in coastal and desert environments. Halogen-free option. Replaces aluminium die-cast boxes that corrode in salt-laden air and desert sand.
- IP RatingIP65 / IP66 (outdoor UV rated)
- UV StabilityUV-stabilised gel coat — rated for 30+ years outdoor in tropical / desert climate
- InternalDIN rail 35 mm · DC fuse holders · SPD (surge protection device) mounting · MC4 cable entry plates
- Halogen FreeHalogen-free resin grade available — zero toxic gas on combustion
- ColourGrey (RAL 7035) · White (RAL 9003) for lower solar heat gain
- ResinISO FR (standard) · VE (coastal / salt air)
- StandardsIEC 60529 · IEC 62548 (PV combiner box) · UL 1741 (grid-tied inverter enclosure)
IP66 UV 30yr Rated Halogen-free IEC 62548 Solar PV
Resin Systems
Resin Selection
Resin determines chemical resistance, temperature range, fire performance, and ATEX suitability. Enclosure resins must also meet electrical insulation and surface resistivity requirements per IEC 60079-0 for hazardous area use.
Isophthalic
ISO Polyester — Standard Grade
Max. Temp.+90°C (continuous)
IP RangeUp to IP68 with correct gasket
ATEX SuitabilityZone 2 (IIB/IIA) with anti-static treatment
Fire RatingUL94 V-0 / V-1 (FR grade) · ASTM E84 Class I
UV ResistanceGood with UV gel coat — outdoor rated 25+ years
Chem. Resist.Good — dilute acids, alkalis, salts, water
Cost★★☆☆☆ Economical — standard choice
Best ForGeneral outdoor, utility, water treatment
Orthophthalic
ORTHO Polyester — Economy
Max. Temp.+70°C (continuous)
IP RangeUp to IP66
ATEX SuitabilityZone 2 only (low-grade chemical resistance)
Fire RatingFR grade available
Chem. Resist.Moderate — non-aggressive environments only
Cost★☆☆☆☆ Lowest cost
Best ForNon-chemical, non-critical indoor/outdoor boxes
Vinyl Ester
VE — Chemical & Offshore
Max. Temp.+130°C (continuous)
IP RangeUp to IP68
ATEX SuitabilityZone 1 (IIB) with anti-static coating · Zone 2 (IIC) with ≤10⁹Ω surface
Fire RatingUL94 V-0 · ASTM E84 Class I · Halogen-free grade
Chem. Resist.Excellent — strong acids, alkalis, solvents, bleach, chlorine
Cost★★★★☆ Premium
Best ForChemical plants, offshore, ATEX Zone 1, chlorine areas
Epoxy
EP — Oil, Gas & High Strength
Max. Temp.+120°C (continuous)
IP RangeUp to IP68
ATEX SuitabilityZone 1 IIC — best anti-static properties of all FRP resins
Fire RatingUL94 V-0 · ASTM E84 Class I
Chem. Resist.Excellent — hydrocarbons, crude oil, seawater, aliphatic solvents
MechanicalHighest impact and flexural strength of all FRP resins
Cost★★★★★ Highest
Best ForATEX Zone 1 IIC, oil & gas, offshore, GRE enclosures
Phenolic
Fire Rated · Marine · IMO
Max. Temp.+200°C (continuous)
IP RangeUp to IP66
Fire PerformanceSelf-extinguishing · Low smoke (BSS 7239) · Low toxic gas · IMO A.653
Fire RatingASTM E84 Class I · DIN 4102 B1 · IMO A.653(18) · SOLAS
ATEXNot typical for ATEX enclosures — check surface resistivity
Cost★★★★☆ Premium fire rating
Best ForMarine vessels, offshore accommodation, fire-rated ducts
Certifications & Ratings
IP · ATEX · NEMA — Full Certification Guide
FRP enclosures are uniquely positioned to meet IP66/IP67, ATEX, and NEMA 4X simultaneously — where steel boxes corrode and lose their IP rating in 2–5 years, GRP maintains its seal for the lifetime of the installation.
IP66
Dust Tight + High-Pressure Jet
Zero dust ingress. Withstands 100 L/min water jet from any direction at 3 m distance. The minimum standard for outdoor industrial use. All FRP enclosures achieve IP66 as standard.
IP67
Temporary Submersion
Dust tight + temporary immersion to 1 m depth for 30 minutes per IEC 60529. Required for underground/buried junction boxes and flood-prone locations. Factory tested.
IP68
Continuous Submersion
Dust tight + continuous submersion at manufacturer-specified depth. Typical rating: 3 m continuous / 10 bar. Double O-ring seal + IP68-certified cable glands mandatory. Factory hydro tested.
NEMA 4X
US Corrosion-Resistant Watertight
NEMA 250 Type 4X — corrosion-resistant, watertight, dust-tight, rust-proof. Equivalent to approximately IP66 + corrosion resistance. Mandatory for USA market industrial installations. UL Listed versions available.
ATEX
EU Explosive Atmosphere Directive
ATEX Directive 2014/34/EU. Zone 1 (II 2G Ex-e/Ex-d) and Zone 2 (II 3G Ex-ec). Certified by EU Notified Body (DEKRA, BASEEFA, BV). CE marked. Mandatory for European hazardous area installations.
IECEx
International Hazardous Area
IECEx scheme — accepted in Australia, Middle East, Asia, Africa. Not the same as ATEX — both certificates usually required for global supply. IECEx accepted in 50+ countries without re-testing.
UL
UL Listed — North America
UL 508A (industrial control panels) · UL 50 (enclosures) · UL 50E (outdoor). Required for USA and Canada market. UL Listed FRP enclosures certified by UL or equivalent NRTL (Nationally Recognised Testing Laboratory).
IK10
Impact Protection
IK10 — 20 Joule impact resistance per IEC 62262. Mandatory for vandal-resistant utility and public infrastructure installations. FRP achieves IK10 due to glass fibre impact absorption — steel dents, GRP rebounds.
ATEX Marking Explained — How to Read the Nameplate
| Marking Element | Meaning | Example Values | Notes |
|---|---|---|---|
| ⊛ Ex | Equipment is ATEX certified for explosive atmosphere | ⊛ II 2G Ex eb IIC T6 Gb | Full marking must appear on nameplate |
| II | Equipment Group II — surface industries (not mines) | II | Group I = mining; Group II = all other industries |
| 2G | Category 2 (Zone 1 suitable) · G = Gas/vapour | 2G (Zone 1) · 3G (Zone 2) · 1G (Zone 0) | Category = safety level; G = gas present |
| Ex e / Ex eb | Increased safety protection type | Ex e · Ex eb (enhanced) · Ex d (flameproof) · Ex p (purged) | Ex-e most common for FRP junction boxes |
| IIC / IIB / IIA | Gas group — defines MESG (max. experimental safe gap) | IIC = H₂, C₂H₂ · IIB = C₂H₄ · IIA = propane | IIC = most ignition-prone. IIC enclosures valid for all groups. |
| T6 / T5 / T4 | Temperature class — max. surface temperature | T6 = 85°C · T5 = 100°C · T4 = 135°C · T3 = 200°C | Must be below auto-ignition temp of the gas present |
| Gb | Equipment Protection Level (EPL) — Gas, level b | Ga (very high) · Gb (high — Zone 1) · Gc (enhanced — Zone 2) | EPL added since IEC 60079-0:2011 |
| Anti-static | Surface resistivity ≤10⁹ Ω for IIC group | EN 60079-0 Cl.7.4 requirement | FRP surface must be treated / coated. Cannot use standard ISO resin for IIC Zone 1 without anti-static surface. |
Industry Sectors
Applications — Key Sectors
FRP/GRP enclosures eliminate the corrosion, rusting, and IP-rating degradation that affect painted steel and galvanised enclosures within 3–7 years in aggressive industrial environments.
Chemical & Process Industry
Acid atmosphere junction boxes, HCl / H₂SO₄ / NaOH areas, chlorine gas handling, bleach plant, FGD scrubber electrical. Vinyl ester mandatory for chemical splash zones. ATEX Zone 1/2 for solvent and gas hazardous areas.
Oil & Gas / Offshore
Platform junction boxes, wellhead instrument enclosures, offshore topside cable pull boxes, ATEX Zone 1 (IIC hydrogen / IIB ethylene) enclosures, subsea monitoring housings. Lightweight — critical for offshore platform weight budgets. ATEX + IECEx dual certified.
Water & Wastewater Treatment
Pump station junction boxes, dosing plant control panels, SCADA RTU enclosures, UV disinfection area panels, buried IP68 pull boxes. Chlorine and hydrogen sulphide atmosphere — both attack steel within months. GRP resists indefinitely.
Desalination / RO Plants
High-chloride coastal atmosphere destroys steel within 2–3 years. GRP enclosures provide 30-year maintenance-free service in seawater spray environments. Instrument boxes for RO skids, MCC panels for high-salinity pump rooms, junction boxes for brine discharge areas.
Power Generation
FGD plant instrument enclosures, battery room junction boxes (non-conductive mandatory for hydrogen Zone 2), cooling tower area panels, boiler room instrument boxes, transformer bay marshalling boxes. Non-magnetic for protection relay and differential protection applications.
Marine / Offshore Structures
Vessel deck junction boxes, engine room cable boxes, accommodation module electrical distribution, SOLAS-compliant fire alarm panel housings, ATEX Zone 1 in machinery spaces. Phenolic resin for fire-rated enclosures. Non-magnetic for compass deck and instrument room installations.
Food & Pharmaceutical
CIP (clean-in-place) washdown-rated IP69K enclosures, non-magnetic housings for metal detector lines, hygienic junction boxes for clean rooms, FDA-contact areas. Halogen-free, smooth surface for easy cleaning, no rust contamination risk.
Solar / Renewable Energy
PV string combiner boxes, inverter enclosures, DC distribution boards, battery energy storage system (BESS) housings. UV-stable for 30+ years. Coastal solar farms require corrosion-resistant enclosures — GRP eliminates the aluminium die-cast corrosion problem in salt air environments.
Engineering Reference
FRP/GRP Enclosure vs. Alternatives
FRP/GRP enclosures cost more upfront than steel but deliver lower whole-life cost in corrosive environments where steel and aluminium enclosures require frequent inspection and replacement.
| Property / Factor | FRP / GRP (VE resin) | Painted Carbon Steel | Stainless Steel 316 | Aluminium Alloy | Polycarbonate (PC) |
|---|---|---|---|---|---|
| Corrosion Resistance — Chemical | Excellent (no metal) | Poor (paint fails 2–3yr) | Good | Moderate (pits in Cl⁻) | Good |
| Corrosion Resistance — Marine/Salt | Excellent | Very poor (3–5yr failure) | Good | Moderate (white corrosion) | Good |
| IP66 Long-Term (10yr) | Maintained (no rust gap) | Degraded (rust lifts gasket) | Maintained | Maintained (if no corrosion) | Maintained |
| Electrical Conductivity | Non-conductive | Conductive | Conductive | Conductive | Non-conductive |
| Magnetic | Non-magnetic | Magnetic | Non-magnetic | Non-magnetic | Non-magnetic |
| RF Transparency | RF transparent (GRP) | RF shielded (metal) | RF shielded | RF shielded | RF transparent |
| ATEX Zone 1 Suitability | Yes — Ex-e / Ex-d (anti-static) | Yes (inherently conductive) | Yes | Yes | No — PC not Ex-rated for Zone 1 |
| Weight (600×400×200 mm box) | ~3.0 kg | ~5.5 kg | ~6.0 kg | ~2.5 kg | ~1.8 kg |
| Max. Temp. Service | +130°C (VE) | +300°C (structural) | +300°C | +200°C | +120°C (PC) |
| IK10 Impact Rating | Yes | Yes (dents but holds) | Yes | IK08 typical | IK07 typical — cracks |
| UV Resistance (outdoor) | Excellent (gel coat 30yr) | Moderate (paint chalks) | Excellent | Good (anodised) | Poor (yellows 3–5yr) |
| Maintenance (10yr, coastal) | None | Repaint every 2–3yr | Inspect + passivate | Inspect + treat | Replace (UV degraded) |
| Whole-Life Cost (10yr, chemical) | Lowest | Highest | Medium | Medium | Low (if no UV / impact) |
| Initial Material Cost | Medium–High | Lowest | High | Medium | Low–Medium |
International Compliance
Export Standards
All enclosures supplied with IP test certificates (IEC 60529), ATEX certificate of conformity (EU NB), material certificates (EN 10204 3.1 equivalent), and dimensional inspection records. Factory acceptance testing (FAT) available.
IEC / EN
International Electrotechnical Commission / European Norm
IEC 60529 (IP) IEC 62208 IEC 61439 IEC 62262 (IK) EN 60079-0 EN 60079-7 (Ex-e) EN 60079-11 EN 60079-13 (Ex-p) IEC 60079-0 BS EN 62208
ATEX / IECEx
Hazardous Area — EU Directive & International
ATEX 2014/34/EU IECEx Scheme EN 60079-0 EN 60079-7 (Ex-e) EN 60079-1 (Ex-d) EN 60079-13 (Ex-p) Zone 1 / Zone 2 IIC / IIB / IIA
NEMA / UL
US Market — North America
NEMA 250 Type 4X NEMA 250 Type 12 UL 50 (enclosures) UL 50E (outdoor) UL 508A (control panels) UL 1741 (solar) NEC Art.314 CSA C22.2 No.94
BS / ISO / IMO
British · International · Marine
BS 8546 BS EN 62208 ISO 14122 IMO A.653(18) SOLAS Ch.II-2 BSS 7239 (smoke) IEC 60079 series
Export Market — Required Certifications
| Export Region | IP Standard | Hazardous Area | General Electrical | Certification / Mark |
|---|---|---|---|---|
| USA / Canada | NEMA 250 Type 4X | UL/CSA Division 1/2 · Class I/II · NEC | UL 508A / UL 50 | UL Listed · CSA Approved · cULus Mark |
| Europe (EU/EEA) | IEC 60529 (IP66/67) | ATEX 2014/34/EU (EU NB cert) | IEC 62208 / IEC 61439 | CE Mark · ATEX Mark (⊛) · NB Number |
| Middle East | IEC 60529 IP66 min. | IECEx + ATEX (project dep.) · SABRE (Saudi) | IEC 62208 | IECEx cert · Aramco/ADNOC project approval |
| Africa | IEC 60529 IP65/66 | IECEx (South Africa ECSA) · ATEX | BS EN 62208 | ECSA (South Africa) · EN 10204 3.1 cert |
| Marine / Offshore | IEC 60529 IP66/67 | ATEX + IECEx · Zone 1/2 | IEC 62208 | DNV · Lloyd's · BV · ABS class cert · IMO cert |
| Australia | IEC 60529 IP66 | IECEx (preferred) · AS/NZS 60079 | AS/NZS 61439 | IECEx cert · RCM Mark · AS/NZS compliance |
Get in Touch
Request a Quote
Tell us enclosure type, IP rating, ATEX zone (if applicable), resin, size, and export standard — we'll respond within 24 hours with pricing, datasheet, and lead time.
- IP test certificates (IEC 60529) supplied with every order
- ATEX Certificate of Conformity from EU Notified Body — DEKRA / BASEEFA / BV
- IECEx certificates for Middle East, Australia, and Asia export
- UL Listing certificates for USA / Canada market
- CE marking for European export (PED, ATEX, LVD directives)
- Raw material batch traceability and resin content certificates
- Factory Acceptance Test (FAT) witnessed by client or TPI on request
- Custom sizes, special cutouts, gland plates, and internal fittings
- Complete enclosure kits — box + glands + terminals + DIN rails + hardware
Connecting global markets with high-quality products.
Your trusted partner for global sourcing & exports.
Quick Links
Get In Touch
Phone
+91-8200676775
sales@enmetra.com
Address
Block-C, 227, Hubtown Northstar, Geeta mandir, Ahmedabad - 380022
Gujarat India.
©2026 ENMETRA. ALL RIGHTS RESERVED.