Single-Pole Circuit Breaker 20A, Model B120
Pickup available at IES - Mississauga
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The Siemens Type BL B120 is a 20A single-pole bolt-on circuit breaker designed for use in Siemens panelboards, making it a reliable choice for professional electricians and contractors working on residential and light commercial electrical distribution projects. Engineered for straightforward installation with a bolt-on stud connection, it provides both manual circuit control and automatic overcurrent protection via thermal magnetic tripping — no fuse replacement required. When a short circuit or overload clears, the circuit is back online with a simple flip of the handle, minimising downtime on the job site. UL 489 listed and built to Siemens' panelboard standards, it's a code-compliant, field-proven solution for branch circuit protection in new construction and retrofit applications.
Specifications
| Part Number | B120 |
| Brand | Siemens Canada Ltd. |
| Type | BL |
| Number of Poles | 1 |
| Amperage Rating | 20 A |
| Voltage Rating | 120 V |
| Interrupt Rating | 10 kA |
| Trip Type | Thermal Magnetic |
| Terminal Connection | Bolt-On, Stud |
| Actuator | Switch Position Knob |
| Application | Electrical Distribution |
| Dimensions | 3 in L × 3 in W × 1 in H |
| Standards | UL 489 |
