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Siemens B260HH Molded Case Circuit Breaker
- 60A
- 2 Pole
- Bolt-On
Siemens
B260HH
Molded Case Circuit Breaker
Brand
Siemens
SKU
B260HH
Quantity
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Siemens B260HH - 60A 2 Pole Molded Case Circuit Breaker
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Description
Built for heavy-duty commercial environments, the Siemens B260HH is a 2-pole, 60A molded case circuit breaker. As part of the HBL series, it provides dependable thermal-magnetic protection with a quick-make, quick-break mechanism. This breaker features a secure bolt-on mounting style designed for Siemens P1 through P5 panelboards. With an extra-high interrupting capacity of 65 kAIC at 120/240VAC, it safely clears severe fault currents. The unit is HACR rated for HVAC applications.Specifications
| Brand | Siemens |
|---|---|
| Part Number | B260HH |
| Series | HBL |
| Amperage | 60A |
| 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 | 8-4 AWG (Cu), 8-2 AWG (Al) |
| Max Wire | 4 AWG (Cu), 2 AWG (Al) |
| Min Wire | 8 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, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, HACR, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Extra High Interrupting Capacity, Non-Interchangeable Trip, Quick-Make/Quick-Break, Trip-Free Mechanism |
Product FAQs
5 answersWhich Siemens panelboards accept the B260HH circuit breaker?
The B260HH is a bolt-on breaker designed specifically for installation in Siemens P1, P2, P3, P4, and P5 series commercial panelboards. It is not compatible with standard residential load centers that require plug-on breakers.
What does the "HH" in the B260HH catalog number indicate?
The "HH" suffix designates an extra-high interrupting capacity. While standard BL breakers offer 10kAIC and "H" versions offer 22kAIC, the B260HH is engineered to safely clear severe fault currents up to 65kAIC at 120/240VAC.
Is the B260HH breaker HACR rated for HVAC applications?
Yes, the Siemens B260HH carries an HACR rating, meaning it is tested and approved for the specific inrush currents and operational demands of heating, air conditioning, and refrigeration equipment.
Can I replace a B260HH with a standard B260 or B260H breaker?
You should only substitute with a lower-rated breaker if a qualified electrician or engineer verifies that the available fault current at the panel is within the lower limits. The B260HH provides 65kAIC protection, whereas the B260 provides 10kAIC and the B260H provides 22kAIC. Downgrading the interrupting capacity can create a severe safety hazard if a fault exceeds the breaker's rating.
How does the B260HH connect to the panelboard bus?
This breaker utilizes a bolt-on connection, meaning it fastens directly to the busbars of compatible Siemens P-series panelboards. This bolted joint provides a highly secure, low-resistance connection that is ideal for heavy-duty commercial and industrial environments.
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