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Siemens HE43B050 Molded Case Circuit Breaker
- 50A
- 3 Pole
- Bolt-On
Siemens
HE43B050
Molded Case Circuit Breaker
Brand
Siemens
SKU
HE43B050
Quantity
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Siemens HE43B050 - 50A 3 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Siemens HE43B050 - 50A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Siemens |
|---|---|
| Part Number | HE43B050 |
| Series | HE |
| Amperage | 50A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 480VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 25kA @ 480VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens P1, P2, P3 Panelboards |
| Wire Gauge | 10-1/0 AWG (Cu/Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 10 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, HID Rated, Non-Interchangeable Trip, Trip-Free Mechanism |
Quantity
Siemens HE43B050 - 50A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Siemens |
|---|---|
| Part Number | HE43B050 |
| Series | HE |
| Amperage | 50A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 480VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 25kA @ 480VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens P1, P2, P3 Panelboards |
| Wire Gauge | 10-1/0 AWG (Cu/Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 10 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, HID Rated, Non-Interchangeable Trip, Trip-Free Mechanism |
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Description
Engineered for commercial applications, the Siemens HE43B050 is a 3-pole, 50A molded case circuit breaker from the legacy HE frame family. This bolt-on MCCB installs into Siemens P1, P2, and P3 panelboards. It serves as an exact replacement for older installations and is superseded by the HED43B050. Rated for 25kAIC at 480VAC, it features a trip-free mechanism and HACR certification for heating and cooling equipment.Specifications
| Brand | Siemens |
|---|---|
| Part Number | HE43B050 |
| Series | HE |
| Amperage | 50A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 480VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 25kA @ 480VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens P1, P2, P3 Panelboards |
| Wire Gauge | 10-1/0 AWG (Cu/Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 10 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, HID Rated, Non-Interchangeable Trip, Trip-Free Mechanism |
Product FAQs
6 answersWhich panelboards are compatible with the Siemens HE43B050 circuit breaker?
The HE43B050 is a bolt-on molded case circuit breaker designed specifically for installation in Siemens P1, P2, and P3 panelboards.
What is the direct replacement for the legacy HE43B050 circuit breaker?
The HE43B050 is a legacy HE frame breaker that has been superseded by the Siemens HED43B050. The HED43B050 is an ED frame breaker that serves as an exact replacement for older installations.
What wire sizes and materials are accepted by the lugs on the HE43B050?
The load side lugs on this breaker accept both copper and aluminum (Cu/Al) conductors ranging from 10 AWG up to 1/0 AWG.
Can the HE43B050 be used in DC voltage applications?
Yes, in addition to its standard 480VAC rating, this thermal magnetic circuit breaker is rated for use in 250VDC applications.
How does the HE43B050 mount into the panelboard?
This breaker features a bolt-on mounting style, which requires it to be mechanically bolted directly to the bus bar of compatible Siemens panelboards.
What type of trip unit is equipped on the HE43B050?
This breaker features a non-interchangeable thermal magnetic trip unit with fixed long time and fixed instantaneous (LI) trip functions.
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