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Siemens B290HH Molded Case Circuit Breaker
- 90A
- 2 Pole
- Bolt-On
Siemens
B290HH
Molded Case Circuit Breaker
Brand
Siemens
SKU
B290HH
Quantity
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Siemens B290HH - 90A 2 Pole Molded Case Circuit Breaker
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Description
Part of the BL Series, the Siemens B290HH is a Type HBL molded case circuit breaker built for commercial applications. It provides reliable thermal-magnetic protection for long-time and instantaneous overcurrent events. This two-pole, 90-amp breaker is designed for bolt-on installation. It mounts into Siemens P1 through P5 panelboards, ensuring a secure connection for stable power distribution. Featuring a 65 kAIC rating, this unit is HACR certified for heating and cooling circuits.Specifications
| Brand | Siemens |
|---|---|
| Part Number | B290HH |
| Series | B |
| Amperage | 90A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 65kA @ 120/240VAC |
| Frame Type | B |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3, P4, P5 Panelboards |
| Wire Gauge | 4-1/0 AWG (Cu), 2-1/0 AWG (Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 4 AWG (Cu), 2 AWG (Al) |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, HACR Rated, UL 489 |
| Approval | CSA, HACR, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Reverse Feed, Common Trip, Non-Interchangeable Trip |
Product FAQs
7 answersWhich Siemens panelboards are compatible with the B290HH circuit breaker?
The B290HH is a bolt-on breaker designed specifically for use in Siemens P1, P2, P3, P4, and P5 commercial panelboards. It is not compatible with standard residential plug-on load centers.
What does the HH designation in the B290HH catalog number indicate?
The HH suffix denotes a high interrupting rating. While standard B-frame breakers offer 10kAIC and H-versions offer 22kAIC, the B290HH provides a 65kAIC rating at 120/240VAC for systems with higher available fault currents.
Can the B290HH be used to replace a B290 or B290H breaker?
Yes, the B290HH shares the same physical dimensions and bolt-on mounting as the standard B290 (10kAIC) and B290H (22kAIC). It can be used as a direct replacement or upgrade where a higher 65kAIC interrupting rating is required.
Does the B290HH come with lugs, and what wire sizes do they accept?
Yes, the breaker includes factory-installed lugs. They are rated for both copper and aluminum conductors, accepting 4 to 1/0 AWG copper (Cu) or 2 to 1/0 AWG aluminum (Al) wire.
Can I install the B290HH on a plug-on bus?
No, the B290HH requires a bolt-on connection. It is designed to bolt directly to the busbars in commercial Siemens P-series panelboards, providing a secure mechanical and electrical connection that resists vibration.
Are the thermal and magnetic trip settings adjustable on the B290HH?
No, this breaker features fixed thermal and fixed magnetic trip elements. It provides standard long-time and instantaneous (LI) protection without adjustable dials.
Does the B290HH provide ground fault or arc fault protection?
No, the B290HH is a standard thermal-magnetic circuit breaker. It does not include GFCI (Ground Fault Circuit Interrupter) or AFCI (Arc Fault Circuit Interrupter) capabilities.
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