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Siemens HE3B090 Molded Case Circuit Breaker
- 90A
- 3 Pole
- Bolt-On
Siemens
HE3B090
Molded Case Circuit Breaker
Brand
Siemens
SKU
HE3B090
Quantity
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Siemens HE3B090 - 90A 3 Pole Molded Case Circuit Breaker
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Description
A robust solution for industrial power distribution, the Siemens HE3B090 offers 90 amps of thermal-magnetic protection. This 3-pole molded case circuit breaker is equipped with fixed long-time and instantaneous trip functions to safeguard critical commercial circuits. Designed for dependable integration, the breaker mounts into Siemens P1, P2, P3, and legacy ITE panelboards. Facilities looking for modern equivalents can cross-reference this unit with the newer HED63B090 model.Specifications
| Brand | Siemens |
|---|---|
| Part Number | HE3B090-R |
| Series | HE |
| Amperage | 90A |
| 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 | HE |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3 Panelboards, ITE 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, Undervoltage Release |
|---|---|
| Accessories | Load Side Lugs |
| Standards | UL 489, CSA C22.2 No. 5, IEC 60947-2, NEMA AB-1 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Non-Interchangeable Trip |
Product FAQs
5 answersWhich panelboards accept the HE3B090 circuit breaker?
This bolt-on breaker is designed for direct integration into Siemens P1, P2, and P3 panelboards, as well as legacy ITE distribution boards.
What is the modern replacement for the legacy HE3B090?
Facilities looking for a current production equivalent can cross-reference this unit with the newer Siemens HED63B090 molded case circuit breaker.
Are the trip settings on the HE3B090 adjustable?
No, this breaker features fixed thermal and fixed magnetic trip settings for long-time and instantaneous overcurrent protection.
Is the HE3B090 suitable for HVAC applications?
Yes, this breaker is HACR rated, making it approved for use with commercial heating, air conditioning, and refrigeration equipment.
Can the trip unit in the HE3B090 be swapped or upgraded?
No, this breaker is constructed with a non-interchangeable trip unit. The thermal-magnetic components are factory sealed and cannot be modified in the field.
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