Plastic Enclosures Flammability

Plastic Enclosures Flammability

UL 94 Flammability Ratings

Plastic Enclosures are rated for flammability using the UL 94 standard. There are 6 levels of certification that can be obtained as follows: -

  • 5VA (Surface Burn) - Burning stops within 60 seconds after 5 applications of 5 seconds each of a flame (larger than used in vertical burn testing) to a test bar. Test specimens may not have a burn-through (no hole should be seen).
  • 5VB (Surface Burn) - Burning stops within 60 seconds after 5 applications of 5 seconds each of a flame (larger than used in vertical burn testing) to a test bar. Test specimens may have a burn-through (a hole).
  • V-0 (Vertical Burn) - Burning stops within 10 seconds after two applications of 10 seconds each of a flame to a test bar. No flaming drips are allowed.
  • V-1 (Vertical Burn) - Burning stops within 60 seconds after two applications of 10 seconds each of a flame to a test bar. No flaming drips are allowed.
  • V-2 (Vertical Burn) - Burning stops within 60 seconds after two applications of 10 seconds each of a flame to a test bar. Flaming drips are allowed.
  • H-B (Horizontal Burn) - Slow horizontal burning on a 3mm thick specimen with a burning rate is less than 3”/min or stops before the 5” mark. H-B rated materials are considered “self-extinguishing”. This is the lowest (least flame retardant UL94 rating)

B&R Products

Polynova PJ

Polynova PJ from B&R is a range of IP55 modular plastic enclosures or adaptable boxes designed to house terminations and electrical components.

Polynova PS

The Polynova PS range, is an IP67 high performance enclosure system that is suitable for indoor and outdoor applications including use in full sunlight. There are 24 different sizes with the choice of opaque or transparent lids.

Polynova PM

Polynova PM is an IP65 modular plastic enclosure which has been designed for use as individual enclosure or to be arranged in combinations to form complete distribution banks.

Polynova PC

The Polynova PC series is a range of IP66 modular thermoplastic, general purpose enclosures. They are available in 19 sizes and have a wide variety of accessories to suit almost any application.

Polynova PN

The Polynova PN range is a hinged IP66, plastic enclosure system, with an easy to use latch assembly. It is available in 12 different sizes with opaque and transparent lids.

Polynova PD

The Polynova PD series is a range of IP65 general purpose enclosures with a hinged door, available in 6 sizes. Manufactured from a non-metallic material (GRP) the PD is available with a wide variety of accessories.

Polynova PU

A non-metal, IP66 rated enclosure suitable for harsh environments and low voltage (LV) double insulated applications.