Verified
Matched our existing hardware and fit as expected. Clean install.
Maintenance · Retrofit work
Seamless online shopping experience guaranteed with easy shipping and returns policy.
Shop with Confidence: Our Products come with a Reliable Year-Long Warranty.
circuit-breaker
Siemens BQ1B050 50A 1P 120V Circuit Breaker | AmpState
★★★★★
| Part Number | BQ1B050 |
| Amperes | 50 |
| Poles | 1 |
| Voltage | 120 |
| Product Type | circuit-breaker |
Regular price
$69.00
Sale price
$69.00
Regular price
Unit price
Save
Seamless online shopping experience guaranteed with easy shipping and returns policy.
Shop with Confidence: Our Products come with a Reliable Year-Long Warranty.
Siemens BQ1B050 50A 1P 120V Circuit Breaker | AmpState
Regular price
$69.00
Sale price
$69.00
Regular price
Unit price
Product description
Shipping
Meet the Siemens BQ1B050 — a 50 A, 1‑pole, 120 V circuit breaker designed for dependable circuit protection in panelboards, load centers, and electrical distribution networks.
Designed for exact part-number matching, this Siemens breaker is an ideal fit for maintenance teams, panel builders, and stockrooms where a direct compatibility match matters. The BQ1B050 is the one‑to‑one replacement for Siemens panels requiring a 1P 50A, 120V unit, ensuring a seamless fit and reliable performance.
Why this breaker stands out
- One-pole design provides fast, targeted protection for a single hot leg in 120 V circuits, helping guard wiring and connected devices from overloads.
- 50 A rating balances protection with capacity for typical branch circuits and select feeders in residential and light commercial applications.
- OEM-grade reliability: built by Siemens for compatibility with Siemens panelboards and load centers, reducing the risk of misfit parts or nuisance trips.
- Stock-ready with AmpState: easy to source for maintenance inventories, service fleets, and panel-building projects.
- Clear part-number alignment: BQ1B050 ensures you’re selecting the exact device your system requires.
Use cases and ideal applications
Keep a spare BQ1B050 on hand for rapid service calls, retrofit projects, and panel replacements where a direct Siemens part is required. It’s well-suited for:
- Residential electrical service panels needing reliable 120V, 50A protection on a single pole.
- Commercial or light-industrial panelboards where fast, correct replacements minimize downtime.
- Maintenance inventories that prioritize OEM parts to simplify ordering and maintain consistency across builds.
Specifications at a glance
- Manufacturer: Siemens
- Part Number: BQ1B050
- Type: Circuit Breaker
- Amperage: 50 A
- Poles: 1
- Voltage: 120 V
Need help matching a part number or confirming compatibility? Message us and we’ll help you confirm fit. This product is available from AmpState for quick procurement and reliable supply.
Contact sales@ampstate.com
Shipping cost is based on weight. Just add products to your cart and use the Shipping Calculator to see the shipping price.
We want you to be 100% satisfied with your purchase.
What Our Customers Say
General feedback we often hear from customers purchasing industrial electrical parts.
Verified
Quick confirmation on details and a smooth ordering process.
Purchasing · Fast turnaround
Verified
Came well packed. Labeling made receiving and staging easy.
Warehouse · Receiving
