The Siemens B120H is a 20-amp, 1-pole, 120V BLH series high-AIC bolt-on circuit breaker. The BLH series offers a 22kAIC interrupting rating at 120V, making it suitable for commercial panelboards and switchboards where higher fault current capacity is required. The B120H features thermal-magnetic trip technology, is HACR-rated for HVAC loads, and is compatible with Siemens NEMA-type panelboards. It is a direct replacement for legacy ITE BLH units.
| Specification | Value |
|---|---|
| Amperage | 20A |
| Poles | 1 |
| Voltage | 120/240VAC |
| Interrupt Rating | 22kA @ 120V · 22kA @ 240V |
| Frame Size | BL Frame (125A Frame) |
| Mounting Type | Bolt-On |
| Trip Type | Thermal Magnetic |
| Trip Function | LI — Long-Time, Instantaneous |
| Wire Size | #14–#8 AWG (Cu/Al) |
| Phase | 1-Phase |
| Standards | UL 489, CSA C22.2 No.5 |
| Temperature Rating | -25°C to 70°C |
Replaces: ITE B120H, B120
Siemens BLH High-AIC Bolt-On 20A 1-pole circuit breaker. In stock at AllBreakerSales.com. Call (877) 611-0034 for same-day pricing. Genuine OEM parts, ships from US warehouse.
Brand: Siemens | Series: BLH High-AIC Bolt-On | Catalog Number: B120H
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