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Siemens B380HH Molded Case Circuit Breaker
- 80A
- 3 Pole
- Bolt-On
Siemens
B380HH
Molded Case Circuit Breaker
Brand
Siemens
SKU
B380HH
Quantity
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Siemens B380HH - 80A 3 Pole Molded Case Circuit Breaker
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Description
Built for commercial applications, the Siemens B380HH is a 3-pole, 80A molded case circuit breaker. It features a thermal-magnetic trip unit with fixed long-time and instantaneous functions to provide reliable overcurrent protection. This bolt-on MCCB is engineered to fit into Siemens P1, P2, P3, P4, and P5 panelboards. The lug terminals accept 4-1/0 AWG copper or 2-2/0 AWG aluminum wire. As a Type HBL breaker, it offers a high interrupting capacity of 65kA at 240VAC and is HACR rated.Specifications
| Brand | Siemens |
|---|---|
| Part Number | B380HH |
| Series | B |
| Amperage | 80A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC |
| Frame Type | B |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3, P4, P5 Panelboards |
| Wire Gauge | 4-1/0 AWG (Cu), 2-2/0 AWG (Al) |
| Max Wire | 1/0 AWG (Cu), 2/0 AWG (Al) |
| 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 | Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Insta-Wire, Non-Interchangeable Trip |
Product FAQs
7 answersWhich panelboards are compatible with the Siemens B380HH circuit breaker?
The B380HH is a bolt-on molded case circuit breaker designed specifically for use in Siemens P1, P2, P3, P4, and P5 panelboards.
What is the difference between the Siemens B380, B380H, and B380HH breakers?
These models share the same 80A rating and B-frame physical dimensions but differ in their interrupting capacity. The B380 is rated at 10kAIC, the B380H is rated at 22kAIC, and the B380HH provides a high interrupting rating of 65kAIC at 240VAC.
What wire sizes and materials are accepted by the B380HH lugs?
The factory-installed load lugs accommodate 4 AWG to 1/0 AWG copper conductors, or 2 AWG to 2/0 AWG aluminum conductors.
What does the HH signify in the B380HH catalog number?
The HH designates this breaker as a Type HBL frame. This indicates a high interrupting rating of 65kAIC at 240VAC, which is the maximum short-circuit rating for this specific Siemens breaker family.
Does the B380HH require a DIN rail for installation?
No, the B380HH is a bolt-on circuit breaker. It mounts directly to the busbar of compatible Siemens panelboards using bolted connections rather than snapping onto a DIN rail.
Are the trip settings on the Siemens B380HH adjustable?
No, this breaker features a fixed thermal and fixed magnetic trip unit. The long-time and instantaneous trip functions are factory-calibrated and cannot be adjusted in the field.
Can the B380HH replace an older 80A B-frame breaker in a Siemens P1 panel?
Yes, it serves as a direct physical replacement for other bolt-on B-frame breakers, such as the B380 or B380H, provided the system fault current does not exceed its 65kAIC rating.
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