Eaton / Cutler-Hammer HCA2125 Molded Case Circuit Breaker
- 125A
- 2 Pole
- Panel Mount
Quantity
Eaton / Cutler-Hammer HCA2125 - 125A 2 Pole Molded Case Circuit Breaker
New
Quantity
Description
Serving commercial and industrial facilities, this 125-amp molded case circuit breaker provides essential thermal-magnetic protection. The two-pole Mark 75 series component operates efficiently within 240VAC electrical systems. It fits perfectly into legacy Westinghouse CDP and FDP panelboards. Facilities upgrading their infrastructure can also substitute this unit with ED2125 or FD2125 models using a retrofit kit. With a high interrupting capacity of 42kA, it ensures rapid fault clearance.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | HCA2125 |
| Series | HCA |
| Amperage | 125A |
| Poles | 2 |
| Mounting Style | Panel Mount |
| Voltage | 240VAC |
| Phase | 1 |
| AIC Rating | 42kA @ 240VAC |
| Frame Type | HCA |
|---|---|
| Terminal Type | Lugs |
| For Use With | Westinghouse CDP Panelboards, FDP Panelboards |
| Wire Gauge | 3 AWG - 300 kcmil (Al/Cu) |
| Max Wire | 300 kcmil |
| Min Wire | 3 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, Undervoltage Release, Alarm Switch, Handle Lock |
|---|---|
| Accessories | Line and Load Lugs Included |
| Standards | CSA C22.2 No. 5, UL 489, NEMA AB 1 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | High Interrupting Capacity |
Product FAQs
6 answersWhat panelboards are compatible with the HCA2125 circuit breaker?
The HCA2125 is designed for use in Westinghouse, Cutler-Hammer, and Eaton CDP and FDP series panelboards.
Does the HCA2125 require a separate mounting hardware kit?
Yes, installing this CA frame breaker into a CDP or FDP panelboard requires a specific mounting hardware kit, such as the CA1K for twin branch configurations.
Can I use the Eaton HCA2125 to replace an older Westinghouse HCA2125?
Yes. Eaton acquired the Westinghouse distribution equipment business, so the current Cutler-Hammer or Eaton HCA2125 is an exact physical and electrical replacement for the original Westinghouse model.
What is the difference between a CA2125 and an HCA2125 breaker?
The H in HCA designates a high interrupting capacity. While a standard CA frame breaker typically has a 10kAIC rating, the HCA2125 provides a higher 42kAIC rating at 240V.
Are lugs included with the HCA2125, and what wire sizes do they accept?
Yes, this breaker comes with line and load side lugs that accommodate 3 AWG to 300 kcmil aluminum or copper conductors.
What does the LI designation mean on the HCA2125 trip unit?
The LI designation indicates that the thermal-magnetic trip unit provides Long-Time and Instantaneous protection functions. Both the thermal and magnetic trip settings are fixed on this model.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
100 SuperPoints = $1 off.
Warranties
Add an extra year of protection
60-Day Warranty
Your purchase includes 60 days of SuperBreakers warranty coverage.
Add a 1-year warranty extension in your cart.
Get a Quote
Don’t see what you’re looking for?
We source obsolete and hard-to-find parts every day.
Shipping
Free Shipping Policy
Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
Same Day Shipping
We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments
Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping
All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.