Eaton / Cutler-Hammer EC2040 Molded Case Circuit Breaker
- 40A
- 2 Pole
- Bolt-On
Quantity
Eaton / Cutler-Hammer EC2040 - 40A 2 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Built for reliable overcurrent defense, the Eaton EC2040 is a 40A, 2-pole molded case circuit breaker. It handles the rigorous demands of commercial environments. This E-Frame breaker features a bolt-on mounting style for secure integration into Cutler-Hammer Type EC panelboards. For modern upgrades, this unit is replaced by the EHD2040. Equipped with fixed thermal-magnetic trip functions, it provides a 10kAIC capacity at 240VAC. The device is HACR rated and includes load-side lugs.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | EC2040-R |
| Series | EC |
| Amperage | 40A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 240VAC |
| Frame Type | EC |
|---|---|
| Terminal Type | Lugs |
| For Use With | Cutler-Hammer Type EC Panelboards |
| Wire Gauge | 14-1/0 AWG (Cu/Al) |
| 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 |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | NEMA AB 1, UL 489 |
| Approval | UL |
| Temp Rating | 40°C |
| Construction Features | Common Trip |
Product FAQs
7 answersWhat panelboards are compatible with the EC2040 circuit breaker?
The EC2040 is designed specifically for installation in legacy Cutler-Hammer Type EC panelboards.
What is the modern replacement for the Cutler-Hammer EC2040?
For modern upgrades or panel retrofits, the Eaton EHD2040 serves as the recommended direct cross-reference replacement for the EC2040.
How is the EC2040 installed into the panelboard?
This E-Frame breaker utilizes a bolt-on mounting style, requiring it to be mechanically fastened directly to the panelboard bus.
What wire sizes and materials are accepted by the EC2040 terminals?
The included load-side lugs accept both copper and aluminum conductors ranging from 14 AWG to 1/0 AWG.
Is the EC2040 breaker HACR rated?
Yes, this breaker is HACR rated, making it suitable for protecting heating, air conditioning, and refrigeration equipment circuits.
Are the trip settings on the EC2040 adjustable?
No, this breaker features a fixed thermal-magnetic trip unit. Both the long-time overload and instantaneous short-circuit trip functions are factory set and non-adjustable.
Does the EC2040 feature a common trip mechanism?
Yes, this 2-pole breaker includes an internal common trip mechanism. An overcurrent or short-circuit event on either phase will simultaneously open both poles, ensuring complete circuit isolation.
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