SIEMENS
SIEMENS B220 20 A 2 Pole 120/240V AC Bolt On Miniature Circuit Breaker
A 20 A, two-pole bolt-on breaker rated 120/240 V AC with 10 kA interrupting capacity for Siemens P1 panels
- TypeCircuit Breakers
- 20 A rating protects 120/240 V circuits
- 10 kA interrupting capacity handles fault currents
- Bolt-on mounting fits Siemens P1 panelboards
- Two-pole design serves single-phase 120/240 V loads
- Terminal lugs accept 14 AWG copper or 12 AWG aluminium wire
Application & Rating
The Siemens B220 is a 20 A bolt-on miniature circuit breaker rated for 120/240V AC single-phase loads. It mounts directly onto compatible Siemens P1 panelboards and load centres using the standard BL frame. The two-pole toggle actuator provides a 10 kA interrupting rating at the rated voltage. Lug terminals accept copper conductors down to 14 AWG and aluminium down to 12 AWG.
Who It Suits
This breaker suits electricians and maintenance teams adding or replacing a 20 A branch circuit in a Siemens P1 enclosure where a bolt-on BL series device is specified. It is not for installations that require a plug-on mounting style, a different frame size, or a DC voltage rating. Panels not listed as compatible with the BL series will not accept this unit.
Deciding Specification
The bolt-on mounting style combined with the BL frame size and P1 panelboard compatibility is the single specification that determines fit. If the target panelboard calls for a plug-on breaker or a different series, this device will not install correctly regardless of its ampere or voltage ratings.
Highlights
- 20 A rating protects 120/240 V circuits
- 10 kA interrupting capacity handles fault currents
- Bolt-on mounting fits Siemens P1 panelboards
- Two-pole design serves single-phase 120/240 V loads
- Terminal lugs accept 14 AWG copper or 12 AWG aluminium wire
Specifications
| Brand | Siemens |
|---|---|
| Type | Circuit Breakers |
Questions about this item
Will the 20 A, 2-pole B220 bolt-on breaker fit my existing Siemens P1 panelboard?
Yes, it is built for Siemens P1 panelboards and uses the BL series bolt-on mounting style.
How can I verify the breaker is operating correctly after installation?
Switch the toggle to ON; the handle should stay firmly latched and the connected circuit should carry load without tripping.
Does the package include the lug terminals or must I purchase them separately?
The breaker comes with integrated lug terminals that accept 14 AWG copper or 12 AWG aluminium wire.
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