Eaton / Cutler-Hammer EC2050 Molded Case Circuit Breaker
- 50A
- 2 Pole
- Bolt-On
Quantity
Eaton / Cutler-Hammer EC2050 - 50A 2 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Designed for heavy-duty applications, the Eaton EC2050 is a 50A, 2-pole molded case circuit breaker. It delivers consistent performance for commercial electrical systems. The bolt-on configuration installs into Cutler-Hammer CS5, MP series panelboards, and EE switchboards. As a legacy component, it is replaced by the EHD2050. Operating with a fixed thermal-magnetic trip, it achieves a 10kAIC rating at 240VAC. This breaker is HACR and HID rated for lighting and HVAC circuits.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Series | EC |
| Amperage | 50A |
| 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 CS5 Panelboards, MP40 Panelboards, MP100 Panelboards, MP200 Panelboards, EE Switchboards |
| 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, Alarm Switch |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | NEMA AB 1, UL 489 |
| Approval | UL |
| Temp Rating | 40°C |
| Construction Features | HACR Rated, HID Rated, Non-Interchangeable Trip |
Product FAQs
6 answersWhich panelboards are compatible with the EC2050 circuit breaker?
This breaker is designed to bolt into Cutler-Hammer CS5, MP40, MP100, and MP200 panelboards, as well as EE switchboards.
What are the wire size requirements for the EC2050 terminals?
The factory-installed lugs accept wire gauges from 14 AWG up to 1/0 AWG. The terminals are dual-rated for both copper and aluminum conductors.
Is there a modern replacement for the legacy EC2050 breaker?
Yes, the EC2050 is a legacy Westinghouse E frame component. For modern applications or panel upgrades, it is typically replaced by the Eaton EHD2050 circuit breaker.
How does the trip unit on the EC2050 operate?
It utilizes a thermal magnetic mechanism with fixed long-time and instantaneous functions. The thermal element responds to sustained overloads, while the magnetic element provides immediate tripping during short circuits.
Is the EC2050 suitable for HVAC and lighting applications?
Yes, this breaker is HACR and HID rated. This allows it to be safely used for heating, air conditioning, refrigeration, and high-intensity discharge lighting circuits.
How does the EC2050 mount into the panelboard?
It requires a bolt-on connection to secure it directly to the panelboard bus. This provides a rigid, high-reliability connection preferred in commercial and industrial environments compared to plug-on designs.
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