We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Black DIN-rail circuit breaker, single pole, 0.5 in wide, 3.11 in long, 3.15 in deep

SQUARE D

SQUARE D 9080GCB50 Thermal Magnetic Circuit Protector 5 A 250 V AC 1 Pole DIN Mount

SKU CH-RB0K-HJ13P

Thermal magnetic circuit protector rated 5 A at 250 V AC, single pole DIN mount with track connection for 16 to 10 AWG copper wire

  • 5 A thermal-magnetic protection for reliable overcurrent safety
  • Single-pole DIN-rail mount installs in tight panel spaces
  • 250 V AC rating suits standard control-circuit voltages
  • UL 1077 and CSA C22.2 No. 235 compliance meets North American standards
  • Accepts 16–10 AWG copper wire for flexible field wiring

Circuit Protector 5 A 250 V AC

The SQUARE D 9080GCB50 is a single-pole thermal magnetic circuit protector rated at 5 A and 250 V AC. It mounts on DIN track and accepts copper conductors from 16 AWG to 10 AWG. The unit carries UL 1077 and CSA C 22.2 No 235 approvals.

Replaces fuses or older breakers

This protector replaces single-pole fuses or legacy breakers in panels that use DIN rail mounting. The jump is worth it when a resettable device with defined trip curves is required instead of a consumable fuse link. It suits circuits where 5 A protection matches the load and wire gauge.

DIN rail snap-in install

The protector snaps onto standard DIN rail and connects through NEMA terminal blocks for copper wire. Ensure the conductor size falls within 16 AWG to 10 AWG and torque terminals to the manufacturer’s specification. Mis-sized wire or loose connections are the common causes of nuisance trips or overheating.

How it compares

Measured against everything we stock in Breakers & Circuit Protection, at today’s prices. Recalculated every night.

Price $58.99
Typical for this category: the median of 1,135 items is $54.99.

Specifications

Product
Brand nameSQUARE D

Questions about this item

What DIN rail width does the 0.5 in wide 9080GCB50 mount on?

The protector clips onto standard 35 mm DIN rail; its 0.5 in overall width occupies one module space.

Which torque value should I use when landing 10 AWG copper on the NEMA terminal blocks?

Tighten the terminal screws to the manufacturer’s specified torque for 10 AWG copper; under-torquing is the common mistake that leads to overheating.

When should the 5 A thermal-magnetic protector be replaced after repeated trips?

Replace the unit if it trips at or below 5 A during normal operation, indicating the thermal element has fatigued.

More in Breakers & Circuit Protection

Similar items