Free Shipping Over $99
Siemens HGB1B020B Molded Case Circuit Breaker
- 20A
- 1 Pole
- Bolt-On
Siemens
HGB1B020B
Molded Case Circuit Breaker
Brand
Siemens
SKU
HGB1B020B
Quantity
Shop with Confidence
Add an extra year of protection in your cart.
Siemens HGB1B020B - 20A 1 Pole Molded Case Circuit Breaker
New
Quantity
Similar Items
15A 1 Pole Molded Case Circuit Breaker
30A 1 Pole Molded Case Circuit Breaker
40A 1 Pole Molded Case Circuit Breaker
Description
Engineered for commercial applications, the Siemens HGB1B020B is a 1-pole, 20A molded case circuit breaker from the SENTRON GB frame series. It mounts into Siemens P1, P2, and P3 panelboards using a standard bolt-on connection. For modern upgrades, it is replaced by the 3VA4120-5ED14-0AA0 with a strap kit. Rated for high interrupting capacity, it delivers 65kAIC at 120VAC and 35kAIC at 277VAC. It is HACR and SWD rated for versatile facility use.Specifications
| Brand | Siemens |
|---|---|
| Part Number | HGB1B020B |
| Series | HGB |
| Amperage | 20A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120VAC, 277VAC, 125VDC, 347VAC |
| Phase | 1 |
| AIC Rating | 65kA @ 120VAC, 35kA @ 277VAC, 42kA @ 125VDC, 14kA @ 347VAC |
| Frame Type | HGB |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3 Panelboards |
| Wire Gauge | 14-10 AWG (Cu/Al) |
| Max Wire | 10 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch |
|---|---|
| Accessories | Load Side Lugs |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, NOM, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, High Interrupting Capacity, SWD Rated, Non-Interchangeable Trip, Trip-Free Mechanism |
Product FAQs
6 answersWhich panelboards are compatible with the Siemens HGB1B020B?
This breaker is designed for direct installation into Siemens P1, P2, and P3 panelboards.
How does the HGB1B020B connect to the panelboard bus?
It utilizes a bolt-on connection to securely mount to the bus in Siemens GB and GG frame compatible panelboards.
What wire sizes are accepted by the HGB1B020B terminals?
The load side lugs accept 14 to 10 AWG copper (Cu) or aluminum (Al) wire.
What does the H in the HGB frame designation indicate?
The H indicates a high interrupting rating compared to standard NGB frame breakers. The HGB1B020B provides up to 65kA at 120VAC and 35kA at 277VAC.
Can the HGB1B020B be used in DC applications?
Yes, this breaker is rated for 125VDC systems, providing an interrupting capacity of 42kA for direct current applications.
Is there a modern replacement for the HGB1B020B?
Yes, for modern panelboard upgrades, the Siemens 3VA4120-5ED14-0AA0 can be used as a replacement when installed with the appropriate strap kit.
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.