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Siemens BQ series two-pole miniature circuit breaker, bolt-on mount, grey toggle actuator

SIEMENS

SIEMENS BQ2B035 Miniature Circuit Breaker 35A 2 Pole 120/240V AC

SKU CH-QV7R-3VA6D

A 35 A, two-pole bolt-on breaker rated 120/240 V AC with a 10 kA interrupting capacity for Siemens panelboards

  • 35 A rated current protects 120/240 V AC circuits
  • 10 kA interrupting capacity clears faults safely
  • Bolt-on mounting fits Siemens panelboards directly
  • Toggle actuator gives clear on/off indication
  • Terminal lugs accept 14–6 AWG copper and 12–6 AWG aluminium

SIEMENS BQ2B035 35 A Miniature Breaker

The SIEMENS BQ2B035 is a bolt-on miniature circuit breaker rated at 35 amps and 120/240 V AC. It fits single-phase Siemens panelboards that accept the BQ frame size. The two-pole toggle actuator provides standard over-current protection for residential and light-commercial branch circuits. The unit is new and carries a 10 kA interrupting rating at the rated voltage.

35 A Two-Pole Rating for Single-Phase Panels

The decisive specification is the 35 A, two-pole rating at 120/240 V AC with a 10 kA AIR value. This combination determines whether the breaker matches the load calculation and the available fault current of the panelboard. It is not suitable for DC applications or for panels requiring a higher interrupting capacity. Verify the panelboard accepts BQ series bolt-on devices before purchase.

Copper 14 AWG to 6 AWG Lug Terminals

The lug terminals accept copper conductors from 14 AWG up to 6 AWG and aluminium from 12 AWG to 6 AWG, giving headroom for typical branch-circuit wiring. The 125 A frame size limits the maximum conductor ampacity, so circuits demanding larger conductors or higher frame ratings will need a different breaker family. Operating temperature is rated to 104 °F.

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Price $136.99
Pricier than about 75% of the 1,135 comparable items (median $54.99).

Specifications

Product
Brand nameSIEMENS

Questions about this item

Will a 35 A breaker trip instantly if my circuit briefly draws more than 35 A?

The breaker is rated to carry 35 A continuously; short overloads above that level will not cause an immediate trip, only sustained over-current will operate the thermal-magnetic mechanism.

What does the 10 kA interrupting rating at 120/240 V AC mean for my panel?

It means the breaker can safely clear a fault current of up to 10 kA at 120/240 V AC; your panel's available fault current must be at or below this value for the breaker to be applied correctly.

What panel space and wire sizes does this bolt-on two-pole breaker require?

It mounts in a Siemens panel using a bolt-on connection, accepts copper wire from 14 AWG to 6 AWG or aluminium from 12 AWG to 6 AWG, and occupies a standard two-pole slot within the 125 A frame size.

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