SIEMENS
SIEMENS B115 BL Series Circuit Breaker 15A 1 Pole 120/240V AC
Single-pole bolt-on breaker rated 15 A at 120/240 V AC with 10 kA interrupting capacity for Siemens P1 panels
- 15 A single-pole protection for 120/240 V AC circuits
- 10 kA interrupting rating handles high fault currents safely
- Bolt-on mounting fits Siemens P1 panelboards directly
- Lug terminals accept 14 AWG copper or 12 AWG aluminium wire
- Compact 3.6 in length saves space in load centres
SIEMENS BL Series 15A Circuit Breaker
This single-pole breaker provides 15 amps of overcurrent protection at 120/240 volts AC. It mounts via a bolt-on connection into compatible Siemens P1 panelboards and load centres. The toggle actuator gives clear visual indication of the circuit state. It is suited for residential and light commercial branch circuits requiring standard interruption capacity.
Sustained Load Performance
The device carries its rated 15 amps continuously within the thermal limits of the BL frame size rated at 125 amps. Under fault conditions it delivers a maximum AIR rating of 10 kiloamps at the rated voltage. The standard trip curve responds to prolonged overloads without nuisance tripping during normal inrush currents. It is not rated for DC voltage applications.
Installation Notes
Bolt-on mounting secures the breaker firmly to the panel bus, reducing the risk of loose connections over time. Terminal lugs accept copper wire down to 14 AWG and aluminium wire down to 12 AWG. The one-inch width fits standard panelboard spacing. Verify the panelboard is a Siemens P1 series before purchase; other series will not accept this breaker.
Highlights
- 15 A single-pole protection for 120/240 V AC circuits
- 10 kA interrupting rating handles high fault currents safely
- Bolt-on mounting fits Siemens P1 panelboards directly
- Lug terminals accept 14 AWG copper or 12 AWG aluminium wire
- Compact 3.6 in length saves space in load centres
Specifications
| Brand | SIEMENS |
|---|
Questions about this item
How much heat does the 15 A BL toggle generate during continuous daily operation?
The breaker runs at its 15 A rating within a standard 1-pole frame; temperature rise stays inside the limits for bolt-on devices listed for Siemens P1 panels.
What panel and wire must I already have to install this bolt-on 1-pole breaker?
It fits Siemens P1 panelboards and accepts 14 AWG copper or 12 AWG aluminium conductors secured by the lug terminals.
Will this 120/240 V AC breaker coordinate with older 10 kA-rated panels I’m keeping?
Yes, the 10 kA interrupting rating at 120/240 V AC matches the AIR of legacy BL-series panels, so selective tripping is maintained.
Also in this aisle
People compared these
Same shelf, same checkout — eight coins and a 30-minute rate lock.
