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Siemens B220HH Molded Case Circuit Breaker
- 20A
- 2 Pole
- Bolt-On
Siemens
B220HH
Molded Case Circuit Breaker
Brand
Siemens
SKU
B220HH
Quantity
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Siemens B220HH - 20A 2 Pole Molded Case Circuit Breaker
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Description
Designed for maximum protection, the Siemens B220HH 2-pole, 20-amp molded case circuit breaker anchors the high-performance HBL family. This unit fastens into Siemens P1 through P5 panelboards. The bolt-on mounting ensures a vibration-proof connection, and the load-side lugs feature Insta-Wire technology for faster installation. Its standout feature is an extra-high 65kAIC interrupting rating, ideal for systems with significant available fault current. It is fully HACR rated.Specifications
| Brand | Siemens |
|---|---|
| Part Number | B220HH |
| Series | B |
| Amperage | 20A |
| 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 | 14-10 AWG (Cu), 12-10 AWG (Al) |
| Max Wire | 10 AWG |
| Min Wire | 14 AWG (Cu), 12 AWG (Al) |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment, Handle Tie |
|---|---|
| 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, Common Trip, Non-Interchangeable Trip, Insta-Wire, Extra High Interrupting Capacity |
Product FAQs
7 answersWhich Siemens panelboards are compatible with the B220HH circuit breaker?
The B220HH is designed for use in Siemens P1, P2, P3, P4, and P5 panelboards. It features a bolt-on connection to ensure a secure fit in these commercial and industrial panels.
What does the 65kAIC rating on the Siemens B220HH indicate?
The 65kAIC rating means this breaker can safely interrupt up to 65,000 amps of fault current at 120/240VAC without sustaining internal damage. This extra-high interrupting rating makes it suitable for systems with significant available fault current.
What wire sizes are accepted by the lugs on the B220HH breaker?
The load-side lugs on the B220HH accept 14 to 10 AWG copper (Cu) wire or 12 to 10 AWG aluminum (Al) wire. Always torque the terminals to the manufacturer specifications printed on the breaker label.
What breaker family does the B220HH belong to?
The B220HH is part of the Siemens HBL family of molded case circuit breakers. It shares the same physical dimensions as standard BL breakers but offers a higher 65kAIC interrupting capacity.
Is the Siemens B220HH HACR rated?
Yes, the B220HH is fully HACR rated, meaning it is approved for use with heating, air conditioning, and refrigeration equipment that requires this specific type of branch circuit protection.
How does the B220HH mount into the panelboard?
This breaker utilizes a bolt-on mounting connection. Bolt-on breakers fasten directly to the panel busbars with screws, providing a secure, vibration-proof connection commonly required in commercial and industrial applications.
What type of trip mechanism does the B220HH use for circuit protection?
It uses a fixed thermal-magnetic trip unit with Long-Time and Instantaneous (LI) functions. The thermal component responds to sustained overloads, while the magnetic component trips instantly during severe short circuits to protect the wiring.
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