Eaton / Cutler-Hammer HCA2225 Molded Case Circuit Breaker
- 225A
- 2 Pole
- Panel Mount
Quantity
Eaton / Cutler-Hammer HCA2225 - 225A 2 Pole Molded Case Circuit Breaker
New
Quantity
Description
Designed for heavy-duty distribution, the Eaton HCA2225 is a 2-pole, 225-amp molded case circuit breaker. It utilizes a thermal-magnetic trip mechanism with fixed long-time and instantaneous functions to defend against overloads and short circuits. This CA-frame MCCB installs into legacy Westinghouse CDP and FDP panelboards. It acts as a direct replacement for older Mark 75 units and can be substituted with ED, FD, or HFD series breakers using an adapter kit. Rated 42kAIC at 240VAC.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | HCA2225 |
| Series | HCA |
| Amperage | 225A |
| 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
8 answersWhat panelboards are compatible with the HCA2225 circuit breaker?
This breaker is designed to fit legacy Westinghouse CDP and FDP panelboards.
Can I use the HCA2225 to replace an older CA2225 or CAH2225 breaker?
Yes, the HCA2225 has the same physical dimensions and can replace older CA2225 (10kAIC) or CAH2225 (22kAIC) breakers, providing an upgraded 42kAIC interrupting capacity.
What does the H in the HCA frame designation mean?
The H indicates a High Interrupting Capacity breaker, part of the Westinghouse Mark 75 series. The HCA2225 provides a 42kA interrupting rating at 240V, compared to the standard 10kA rating of the base CA frame.
Is this breaker interchangeable with modern Eaton Series C breakers?
While Eaton manufactures modern replacements like the FD or ED frames, installing them in older CDP or FDP panelboards typically requires a specific retrofit adapter kit. The HCA2225 is a direct, drop-in replacement for original CA-frame installations.
What wire sizes are accepted by the lugs on the HCA2225?
The included line and load side lugs accept wire gauges from 3 AWG up to 300 kcmil. They are rated for both aluminum and copper (Al/Cu) conductors.
How is this circuit breaker mounted in the panel?
The HCA2225 is a panel-mount, feed-thru circuit breaker that bolts directly to the chassis of compatible CDP and FDP panelboards.
Are the trip settings adjustable on the HCA2225?
No, this breaker features a fixed thermal and fixed magnetic trip unit (LI, Long-Time and Instantaneous) and cannot be adjusted in the field.
Does the HCA2225 require joint compound when used with aluminum wiring?
Yes, when terminating aluminum conductors to the lugs, an approved oxide-inhibiting joint compound must be used to ensure a secure and safe connection.
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