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Cylindrical fiberglass fuse, 76.2 mm long, 20.6 mm diameter

Bussmann

Bussmann PON40 40A 250VAC Time Delay Fiberglass Fuse

SKU CH-0BPS-9HBE7

A 40 A time-delay fiberglass fuse rated 250 V AC with a 10 kA interrupt rating and 76.2 mm cylindrical body

  • TypeEnclosures
  • 40 A time-delay protection prevents nuisance tripping on motor starts
  • 10 kA interrupt rating at 250 V AC safely clears heavy fault currents
  • Dual-element construction handles overloads and short-circuits in one fuse
  • CSA C 22.2 No. 59.1 listing confirms compliance with Canadian safety standards
  • Fiberglass body resists heat and shattering in harsh electrical enclosures

Product Identity

The Bussmann PON40 is a cylindrical time-delay fuse rated at 40 amps and 250 volts AC. It uses a fiberglass body measuring 76.2 millimetres long by 20.6 millimetres in diameter. The fuse carries a 10 kiloamp interrupt rating at 250 volts AC and meets CE and CSA C22.2 No. 59.1 standards.

Suitable Applications

This fuse suits circuits that need a 40-amp time-delay device with a cylindrical fiberglass housing. Buyers who require a different current rating, a different voltage rating, a non-time-delay characteristic, or a rejection-style fuse should look at something else.

Decisive Specification

The 40-ampere 250-volt AC time-delay rating in a 76.2-by-20.6-millimetre cylindrical fiberglass body is the single specification that determines whether this fuse fits the application.

Highlights

  • 40 A time-delay protection prevents nuisance tripping on motor starts
  • 10 kA interrupt rating at 250 V AC safely clears heavy fault currents
  • Dual-element construction handles overloads and short-circuits in one fuse
  • CSA C 22.2 No. 59.1 listing confirms compliance with Canadian safety standards
  • Fiberglass body resists heat and shattering in harsh electrical enclosures

Specifications

BrandBUSSMANN
TypeEnclosures

Questions about this item

What fuse holder or disconnect accepts a 76.2 mm by 20.6 mm cylindrical fuse?

A holder rated for 250 V AC and 40 A with a 20.6 mm diameter bore and 76.2 mm clip spacing will accept this PON40 fuse.

Will the 10 kA interrupt rating protect my existing 250 V AC panel?

Yes, the 10 kA at 250 V AC rating meets or exceeds the short-circuit capability of standard 250 V AC panels.

How can I confirm the fuse has blown after installation?

Because this is a non-indicating fuse, use a multimeter to check for continuity across the fiberglass body after a suspected fault.

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