Siemens HGB2K020B Molded Case Circuit Breaker
- 20A
- 2 Pole
- Bolt-On
Siemens
HGB2K020B
Molded Case Circuit Breaker
Brand
Siemens
SKU
HGB2K020B
Quantity
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Siemens HGB2K020B - 20A 2 Pole Molded Case Circuit Breaker
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Description
Part of the Sentron GB2 series, the Siemens HGB2K020B is a 2-pole, 20A molded case circuit breaker for commercial electrical systems. Designed for bolt-on installation, it fits into Siemens P1 through P5 panelboards. The newer 3VA5120-5ED22-0AA0 serves as its replacement but requires a specific mounting kit. With an interrupting capacity of 100kA at 240V and 35kA at 480Y/277V, it safely clears severe short circuits. It is HACR rated for HVAC equipment.Specifications
| Brand | Siemens |
|---|---|
| Series | HGB |
| Amperage | 20A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480Y/277VAC, 600Y/347VAC, 125/250VDC |
| Phase | 1 |
| AIC Rating | 100kA @ 240VAC, 35kA @ 480Y/277VAC, 14kA @ 600Y/347VAC, 42kA @ 125/250VDC |
| Frame Type | HGB |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3, P4, P5 Panelboards |
| Wire Gauge | 14-6 AWG (Cu), 12-6 AWG (Al) |
| Max Wire | 6 AWG |
| Min Wire | 14 AWG |
| 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, Handle Tie |
|---|---|
| Accessories | Load Side Lugs |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, IEC, NOM, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, High Interrupting Capacity |
Product FAQs
5 answersWhich Siemens panelboards are compatible with the HGB2K020B circuit breaker?
This bolt-on breaker is designed for use in Siemens P1, P2, P3, P4, and P5 series panelboards. Ensure your specific panel interior is configured to accept GB or GG frame bolt-on breakers.
What wire sizes are accepted by the terminals on this 20A breaker?
The factory installed lugs accept 14 to 6 AWG copper wire or 12 to 6 AWG aluminum wire. Always torque the terminal screws to the manufacturer specifications printed on the breaker label during installation.
Can the HGB2K020B be used in direct current systems?
Yes, this thermal magnetic breaker is rated for DC applications up to 125/250VDC with a maximum interrupting capacity of 42kA. It is suitable for both AC and DC environments.
What is the difference between the HGB2K020B and standard NGB breakers?
The HGB prefix indicates a high interrupting rating. While standard NGB breakers offer lower fault current ratings, this HGB model provides up to 100kA at 240VAC and 35kA at 480VAC. Both share the same physical footprint and panel compatibility.
Are the trip settings adjustable on the HGB2K020B?
No, this unit features a fixed thermal and fixed magnetic trip unit. It provides standard long time and instantaneous protection without field adjustability.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 2 reviews.
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Rating
2 reviews
- CSCody S.Verified BuyerReviewingSiemens HGB3B020B - 20A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars12/1/25I love SuperBreakers
Excellent shipping time and everything works perfectly
- JMJessica M.ReviewingSiemens HGB3B020B - 20A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars8/16/23works as intended
works as intended