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
Siemens BQ series miniature circuit breaker, 15 amp single pole toggle switch, light grey plastic body, bolt-on lug terminals

SIEMENS

SIEMENS BQ1B015 Miniature Circuit Breaker 15A 1 Pole 120V AC

SKU CH-EHF2-N52JY

Provides 15 A single-pole circuit protection at 120 V AC with a 10 kA interrupt rating and bolt-on mounting for Siemens panelboards

  • 15 A single-pole protection for 120 V AC circuits
  • 10 kA interrupting rating handles high fault currents
  • Bolt-on mounting fits Siemens BQ panelboards
  • Lug terminals accept 14–10 AWG copper or 12–10 AWG aluminium
  • Compact 1 × 3 × 4 inch frame saves panel space

BQ Series 15 A single-pole breaker

The SIEMENS BQ1B015 is a 15 A miniature circuit breaker rated for 120 V AC single-phase circuits. It carries a 10 kA interrupting rating at that voltage and uses a toggle actuator for manual switching. The unit belongs to the BQ series with a 125 A frame size and mounts by bolting directly onto compatible Siemens panelboards.

Bolt-on mounting and lug terminals

A bolt-on mounting style secures the breaker firmly to the panelboard bus, reducing the chance of loose connections over time. Lug terminals accept copper conductors from 14 AWG up to 10 AWG and aluminium conductors from 12 AWG to 10 AWG. The compact body measures 1 inch in length, 3 inches in width and 4 inches in depth.

Verify panelboard compatibility and wire gauge

Confirm that the target panelboard is listed for use with Siemens BQ series breakers before ordering. Ensure the circuit conductors fall within the 14 to 10 AWG copper or 12 to 10 AWG aluminium range so they fit the lug terminals. This breaker is not rated for DC applications and provides only a single pole of protection.

How it compares

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

Price $47.99
Cheaper than about 57% of the 1,135 comparable items (median $54.99).

Specifications

Product
Brand nameSIEMENS

Questions about this item

What interrupting rating does the BQ series 15 A breaker provide at 120 V AC?

The breaker carries a 10 kA interrupting rating at 120 V AC.

Which Siemens panelboards accept this bolt-on single-pole breaker?

It is designed for Siemens panelboards that use the BQ bolt-on mounting style.

How is the breaker secured in the panel and what wiring step is often missed?

The unit bolts onto the panel bus; the step often missed is torquing the lug terminals to the specified value for 10–14 AWG conductors.

More in Breakers & Circuit Protection

Similar items