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Eaton / Cutler-Hammer EHC3020 Molded Case Circuit Breaker
- 20A
- 3 Pole
- Bolt-On
Eaton / Cutler-Hammer
EHC3020
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
EHC3020
Quantity
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Eaton / Cutler-Hammer EHC3020 - 20A 3 Pole Molded Case Circuit Breaker
Re-Certified
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Description
Built for industrial power distribution, this 20-amp F-frame breaker delivers reliable thermal-magnetic protection. The three-pole design handles standard commercial voltages up to 480VAC. Integration is straightforward as it bolts into Eaton Series C panelboards and motor control centers. Maintenance teams often utilize this component when replacing older hardware, as it precedes the EHD3020. With a 14kAIC rating at 480V, the unit is HACR rated and allows for reverse feed wiring.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | EHC3020-R |
| Series | EHC |
| Amperage | 20A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 18kA @ 240VAC, 14kA @ 480VAC, 10kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Eaton Series C Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | 14-1/0 AWG |
| Max Wire | 1/0 AWG |
| Min Wire | 14 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 |
|---|---|
| Accessories | Load Side Lugs |
| Standards | CSA C22.2 No. 5, UL 489, NEMA AB-1 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed |
Product FAQs
8 answersWhat is the modern replacement for the legacy EHC3020 circuit breaker?
The EHC3020 is a legacy Series C F-frame breaker. For system upgrades or direct replacements, Eaton recommends the EHD3020, which shares the same physical dimensions, mounting style, and electrical ratings.
Which panelboards are compatible with the EHC3020 breaker?
This F-frame breaker is engineered specifically for Eaton and Cutler-Hammer Series C panelboards, switchboards, and motor control centers. It secures to the bus via a standard bolt-on connection.
Does the EHC3020 support reverse feed wiring configurations?
Yes, this molded case circuit breaker is suitable for reverse feed applications, allowing flexibility when routing conductors in tight enclosures or specific panelboard layouts.
Is the EHC3020 suitable for HVAC equipment protection?
Yes, this breaker is HACR rated, meaning it is certified for use with heating, air conditioning, and refrigeration equipment that requires specialized overcurrent protection.
What size wire can be used with the load side lugs on this breaker?
The standard pressure type lug terminals accept copper or aluminum conductors ranging from 14 AWG to 1/0 AWG. Ensure proper torque specifications are followed during installation.
Can this breaker be used in DC voltage applications?
Yes, in addition to its AC ratings, the EHC3020 is rated for 250 VDC systems, providing a 10 kAIC interrupting capacity for direct current applications.
Can I install this Cutler-Hammer breaker in a GE or Siemens panel?
No. While some breakers may physically fit, the EHC3020 is only UL listed and approved for use in Eaton or Cutler-Hammer Series C enclosures. Mixing brands violates the panel listing and creates safety hazards.
Are the trip settings adjustable on the EHC3020?
No, this breaker features a fixed thermal and fixed magnetic trip unit. The long-time and instantaneous trip functions are factory set and cannot be modified in the field.
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