Siemens HF63B125 Molded Case Circuit Breaker
- 125A
- 3 Pole
- Bolt-On
Quantity
Siemens HF63B125 - 125A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Built for commercial and industrial applications, the Siemens HF63B125 is a 125A molded case circuit breaker. It provides reliable thermal-magnetic protection with long-time and instantaneous trip functions. This bolt-on MCCB installs into Siemens Sentron, P2, and P3 panelboards, switchboards, and motor control centers. It is officially replaced by the newer HFD63B125 model for future upgrades. Rated for 65kAIC at 480VAC, this F-Frame breaker handles high fault currents.Specifications
| Brand | Siemens |
|---|---|
| Part Number | HF63B125-R |
| Series | HF |
| Amperage | 125A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC, 500VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 25kA @ 600VAC, 25kA @ 500VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens Sentron Panelboards, P2, P3 Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | 6 AWG - 350 kcmil (Cu/Al) |
| Max Wire | 350 kcmil |
| Min Wire | 6 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Lugs |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Interchangeable Trip Unit |
Product FAQs
6 answersWhich Siemens panelboards are compatible with the HF63B125?
This breaker is designed for use in Siemens Sentron panelboards, P2 and P3 panelboards, as well as compatible switchboards and motor control centers.
What wire sizes are accepted by the lugs on this breaker?
The standard load side lugs accept copper or aluminum wire ranging from 6 AWG to 350 kcmil.
How is the trip unit configured on the HF63B125?
It features a thermal magnetic trip unit with fixed thermal and adjustable magnetic settings. The trip unit is also interchangeable, allowing for modifications if load requirements change.
What specific trip functions are included in this breaker?
The thermal magnetic trip unit provides Long-Time and Instantaneous (LI) protection functions.
Is this breaker rated for DC applications?
Yes, it is rated for up to 500VDC with a maximum interrupting capacity of 25kA in direct current systems.
What frame family does the HF63B125 belong to?
This breaker is part of the legacy Siemens F Frame family of molded case circuit breakers.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 2 reviews.
- TJTravis J.ReviewingSiemens HF364 Heavy Duty Safety SwitchI recommend this productRated 5 out of 5 stars5/18/22fast!
wow great service
- SNShane N.ReviewingFederal Pacific HF631100 - 100A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars5/28/18Excellent Service and Fast Shipping
Breaker was shipped from the US to remote northern LAbrador, Canada very quickly and was in excellent condition. I would highly recommend SuperBreakers.