Glass reinforced polyester (GRP) is a strong, light weight and easily modified enclosure material. It is an ideal material for many applications, particularly those that are weight or corrosion sensitive
GRP is a strong, light weight and easily modified enclosure material. It also offers other specific benefits: it is non-magnetic, non-conductive, transparent to electromagnetic radiation, fire retardant and corrosion resistant. For many applications, particularly those that are weight or corrosion sensitive, it is an ideal material for the housing of instrument enclosures, electric, hydraulic or pneumatic control units, electrical junction boxes or terminal wiring assemblies. GRP is ideal for outdoor environments as it maintains its structural strength in both high and low temperature environments.
Our most popular families are the wall mounted PJU and PJ, which come in a wide range of sizes and multiple options of lids and closure mechanisms. The heavy-duty thick wall 1590ZGRP and 1590ZGRPBK are also produced in many different sizes. All are rated IP66, NEMA Type 1, 2, 3, 4, 4X, 12 and 13, and are UL Listed. The operating temperature range for our PJU and PJ families is -40°C to 130°C, for the 1590ZGRP the recommended operating temperature range is -40°C to 120°C and for the 1590ZGRPBK it is -40°C to 100°C.
Click here for an overview of the many different options in our GRP portfolio
The PJU family
- Nine sizes from 154mm x 159mm x 105mm to 521mm x 413mm x 257mm
- Plain or transparent hinged covers secured with 316SS snap latches, twist latches or screws
- The lids are flush with enclosure body
- Snap latches can be padlocked to prevent unauthorised access.
- Complies with IEC 60529, IP66
- Complies with NEMA Type 1, 2, 3, 4, 4X, 12 and 13
- Operating temperatures between -40°C and 130°C
- UL and cUL Listed
- Sealing achieved with a captive oil-resistant closed cell neoprene gasket.
- Non-metallic lightweight material is easily punched, cut or drilled.
- Enhanced UV inhibitors protect against outdoor weathering.
- Threaded brass inserts and fixings are provided for optional white powder-coated steel inner panel, plain aluminium or fibreglass inner panels.
- Four individual mounting brackets or optional full width mounting flanges.
The PJ family
- 11 sizes from 155mm x 155mm x 105mm to 508mm x 406mm x 217mm
- Solid or transparent hinged covers secured with snap latches, twist latches or captive screws into brass inserts
- The lids overhang the enclosure body
- Complies with IEC 60529, IP66 (IP68 for all but the three largest sizes)
- Complies with NEMA Type 1, 2, 3, 4, 4X, 12 and 13
- Operating temperatures between -40°C and 130°C
- UL and cUL Listed
- Sealing achieved with a captive oil-resistant closed cell neoprene gasket.
- Non-metallic lightweight material is easily punched, cut or drilled.
- Enhanced UV inhibitors protect against outdoor weathering.
- Threaded brass inserts and fixings are provided for optional white powder-coated steel inner panel, plain aluminium or fibreglass inner panels.
- Four individual mounting brackets or optional full width mounting flanges.
The 1590Z GRP and the 1590ZGRPBK
- 18 sizes from 80mm x 75mm x 56mm to 601mm x 250mm x 160mm including lids
- Heavy-duty construction with a wall thickness of 3.7 to 5mm depending on size
- The lids are flush with enclosure body
- Sealed to IP66, UL Certified to NEMA 4X
- The operating temperature range for the 1590XGRP is -40°C to 120°C
- The operating temperature range for the 1590XGRPBK is -40°C to 100°C
- Easy wall mount using through box holes located outside the sealing gasket
- All sizes are approved to IEC 62262, ‘degrees of protection provided by enclosures for electrical equipment against external mechanical impacts’
- 1590ZGRPBK impact resistance is rated at IK09, confirming protection against 10 Joules of impact, tested by a 50mm diameter steel ball weighing 5kg dropped from 200mm above the impacted surface.
- 1590ZGRP impact resistance is rated at IK08, confirming protection against 5 Joules of impact, tested by a 25mm diameter steel ball weighing 1.7kg dropped from 300mm above the impacted surface.
- Corrosion resistant
- Good thermal insulation
- Self-captivating stainless steel securing screws
- All 1590ZGRPBK sizes have a mounting shelf at each end of the base
- The three 1590ZGRPBK smallest sizes have a single M4 threaded insert in the shelves, all the others have three M6 ones
- Optional 1.3mm galvanised steel inner panels that attach to the mounting shelves available for all sizes
- Pole mounting kits, ordered separately, enable the units to be attached to round poles up to 375mm in diameter as well as square and rectangular shapes.
- Optional hinge kits for the lids
- Optional accessories: pressure compensation plugs and sealed strain relief cord grips in black, breathers and rainproof ventilators in grey
Pole mounting kits
The light weight of the 1590ZGRP and 1590ZGRPBK units enables them to be mounted on poles using corrosion resistant stainless-steel kits that reduce installation time and secure the enclosure against twisting once installed.
- Suitable for round poles up to 375mm diameter
- Suitable for square or rectangular shapes
Contact us
To contact our technical sales team about the enclosure requirements for your project, call +44 1256 812812, mail us at uksales@hammfg.com or eusales@hammfg.com.
To help you in specifying your requirements you can download PDF, AutoCAD .dxf and 3D Solid Model .igs and .stp files for all our products from our web site.
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