Eaton / Westinghouse EA1020 Molded Case Circuit Breaker
- 20A
- 1 Pole
- Bolt-On
Quantity
Eaton / Westinghouse EA1020 - 20A 1 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Built for commercial applications, the EA1020 is a 20A, 1-pole molded case circuit breaker from Eaton's legacy Westinghouse line. It delivers reliable thermal-magnetic protection for 120VAC systems. A drop-in replacement for aging infrastructure, this bolt-on breaker installs into original Westinghouse panelboards. It serves as an exact substitute for the EHD1020, preserving existing enclosures. Rated at 10kAIC, this unit features fixed trip settings and includes load-side lugs.Specifications
| Brand | Eaton / Westinghouse |
|---|---|
| Part Number | EA1020-R |
| Series | EA |
| Amperage | 20A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120VAC, 125VDC |
| Phase | 1 |
| AIC Rating | 10kA @ 120VAC, 5kA @ 125VDC |
| Frame Type | EA |
|---|---|
| Terminal Type | Lugs |
| For Use With | Westinghouse Panelboards, Eaton Panelboards (Retrofit) |
| 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 Included |
| Standards | NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Standard Interrupting Capacity, Non-Interchangeable Trip |
Product FAQs
7 answersWhich panelboards accept the EA1020 circuit breaker?
The EA1020 is a legacy E-Frame breaker designed to bolt directly into original Westinghouse panelboards. It is also compatible with specific Eaton retrofit panelboards designed to accept legacy Westinghouse frames.
Does the EA1020 require special mounting hardware for installation?
The EA1020 is a bolt-on breaker that fastens directly to the busbars of compatible Westinghouse or Eaton retrofit panelboards. Standard panelboard mounting hardware is required to secure the bolted connections.
How should the load-side wiring be terminated on the EA1020?
The breaker is equipped with standard mechanical lugs that accept wire gauges from 14 AWG to 1/0 AWG. Conductors must be torqued to the manufacturer specifications to ensure a safe and reliable connection.
Is the EA1020 interchangeable with the Eaton EHD1020?
Yes, the EA1020 serves as an exact substitute for the Eaton EHD1020. It provides a drop-in replacement option that preserves your existing enclosures and aging panelboard infrastructure.
Are the trip settings on the EA1020 adjustable?
No, this breaker features a fixed thermal-magnetic trip unit. Both the long-time overload protection and the instantaneous short-circuit protection are factory calibrated and cannot be adjusted in the field.
Can the EA1020 be installed in DC control panels?
Yes, the breaker is dual-rated for both alternating and direct current. It can be safely applied in 125VDC systems, such as battery backups or industrial control panels, where it provides up to 5kA of interrupting capacity.
What safety standards apply to the EA1020 circuit breaker?
The EA series breakers were built to meet UL 489 and NEMA AB-1 standards for molded case circuit breakers. Before installing, always verify that the 10kAIC rating at 120VAC is sufficient for the available fault current in your specific system.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 1 review.
- CGClaudia G.Verified BuyerReviewingEaton / Westinghouse EA3030 - 30A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars8/20/26Good
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