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Siemens HE43B020 Molded Case Circuit Breaker
- 20A
- 3 Pole
- Bolt-On
Siemens
HE43B020
Molded Case Circuit Breaker
Brand
Siemens
SKU
HE43B020
Quantity
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Siemens HE43B020 - 20A 3 Pole Molded Case Circuit Breaker
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Siemens HE43B020 - 20A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Siemens |
|---|---|
| Part Number | HE43B020 |
| Series | HE |
| Amperage | 20A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 25kA @ 480VAC, 18kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | HE4 |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3 Panelboards |
| Wire Gauge | 14-10 AWG (Cu), 12-10 AWG (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 Thermal, Fixed Magnetic |
| 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, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Non-Interchangeable Trip |
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Siemens HE43B020 - 20A 3 Pole Molded Case Circuit Breaker
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| Brand | Siemens |
|---|---|
| Part Number | HE43B020-R |
| Series | HE |
| Amperage | 20A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 25kA @ 480VAC, 18kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | HE4 |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3 Panelboards |
| Wire Gauge | 14-10 AWG (Cu), 12-10 AWG (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 Thermal, Fixed Magnetic |
| 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, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Non-Interchangeable Trip |
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Description
Engineered for commercial power distribution, the Siemens HE43B020 is a 20A molded case circuit breaker. It provides reliable protection for 3-phase electrical systems. This bolt-on unit mounts into Siemens P1, P2, and P3 panelboards. As a legacy E-Frame breaker, it serves as an exact replacement for older installations and is superseded by the HED43B020. Featuring fixed thermal-magnetic trip units, it delivers a 25kA interrupt capacity at 480VAC.Specifications
| Brand | Siemens |
|---|---|
| Part Number | HE43B020 |
| Series | HE |
| Amperage | 20A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 25kA @ 480VAC, 18kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | HE4 |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3 Panelboards |
| Wire Gauge | 14-10 AWG (Cu), 12-10 AWG (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 Thermal, Fixed Magnetic |
| 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, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Non-Interchangeable Trip |
Product FAQs
5 answersWhich Siemens panelboards are compatible with the HE43B020 circuit breaker?
This bolt-on breaker is designed for installation in Siemens P1, P2, and P3 panelboards.
What wire sizes are accepted by the terminals on the HE43B020?
The included lugs accept 14 to 10 AWG copper wire or 12 to 10 AWG aluminum wire.
Can the HE43B020 be used in DC circuits?
Yes, it is rated for 250VDC applications and provides a 10kA interrupting capacity at that voltage.
Are the trip settings adjustable on this breaker?
No, the thermal magnetic trip unit features fixed thermal and fixed magnetic settings for its long-time and instantaneous protection functions.
What frame class does the HE43B020 belong to?
It is part of the Siemens E Frame group, specifically utilizing the HE4 frame type for legacy molded case circuit breaker applications.
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