Free Shipping Over $99
Siemens BQCH1B020 Molded Case Circuit Breaker
- 20A
- 1 Pole
- Bolt-On
Siemens
BQCH1B020
Molded Case Circuit Breaker
Brand
Siemens
SKU
BQCH1B020
Quantity
Shop with Confidence
Add an extra year of protection in your cart.
Siemens BQCH1B020 - 20A 1 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Similar Items
20A 1 Pole Molded Case Circuit Breaker
20A 1 Pole Molded Case Circuit Breaker
Description
Part of the BQ family, this 20A, 1-pole MCCB delivers robust commercial and industrial power distribution. Built for 120/277V systems, it features fixed thermal and magnetic trip elements for dependable overcurrent protection. The breaker installs into Siemens P1, P2, and P3 panelboards using a secure bolt-on connection. Note that this legacy BQCH model has been replaced by the BQD120, which serves as a drop-in substitute. It carries HACR, HID, and SWD ratings for versatile applications.Specifications
| Brand | Siemens |
|---|---|
| Part Number | BQCH1B020-R |
| Series | BQCH |
| Amperage | 20A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120VAC, 277VAC |
| Phase | 1 |
| AIC Rating | 65kA @ 120VAC, 14kA @ 277VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens P1, P2, P3 Panelboards |
| Wire Gauge | 14-6 AWG (Cu), 12-6 AWG (Al) |
| Max Wire | 6 AWG (Cu), 6 AWG (Al) |
| Min Wire | 14 AWG (Cu), 12 AWG (Al) |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, SWD Rated, Non-Interchangeable Trip, Quick-Make/Quick-Break, Trip-Free Mechanism |
Product FAQs
6 answersCan the BQCH1B020 be installed in standard Siemens residential load centers?
No. The BQCH1B020 features a bolt-on connection designed specifically for commercial and industrial Siemens P1, P2, and P3 panelboards. It will not fit in standard plug-on residential load centers that require QP or QT type breakers.
What is the direct replacement for the legacy BQCH1B020 circuit breaker?
The Siemens BQCH series is a legacy product line. The Siemens BQD120 serves as the modern, drop-in substitute, providing the same 20-amp, 1-pole protection for Siemens P1, P2, and P3 panelboards.
What does the BQCH series offer over standard BQ breakers?
The BQCH series provides a significantly higher interrupting capacity for commercial environments. While standard BQ breakers have lower fault ratings, the BQCH1B020 delivers 65kAIC at 120VAC and 14kAIC at 277VAC.
Is the BQCH1B020 suitable for switching lighting loads?
Yes. The BQCH1B020 carries SWD (Switching Duty) and HID (High-Intensity Discharge) ratings, meaning it is UL approved to be used as a switch for fluorescent and HID lighting circuits in commercial facilities.
Can this 1-pole breaker be used in a 480V system?
The BQCH1B020 is rated for 277VAC. It is designed to protect 277V single-phase branch circuits derived from a 480Y/277V three-phase, four-wire commercial distribution system. It cannot be used across 480V line-to-line connections.
Is the BQCH1B020 rated for HVAC equipment?
Yes, this breaker carries an HACR (Heating, Air Conditioning, and Refrigeration) rating, making it suitable for protecting multi-motor HVAC circuits.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
100 SuperPoints = $1 off.
Warranties
Add an extra year of protection
60-Day Warranty
Your purchase includes 60 days of SuperBreakers warranty coverage.
Add a 1-year warranty extension in your cart.
Get a Quote
Don’t see what you’re looking for?
We source obsolete and hard-to-find parts every day.
Shipping
Free Shipping Policy
Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
Same Day Shipping
We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments
Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping
All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.