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MES3800LS
The MES3800LS from Eaton Cutler-Hammer is a molded case circuit breaker trip unit with three poles, capable of handling a rated current of 800 A. Designed for use in both AC and DC applications, it operates at a maximum voltage of 600 V AC and 250 V DC.
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Technical specifications for MES3800LS
| Manufacturer | Eaton Cutler-Hammer |
|---|---|
| Product Type | Molded Case Circuit Breaker Trip Unit |
| Product Line | Series C Circuit Breakers |
| Part Number | MES3800LS |
| UPC | 782114356784 |
| Number of Poles | 3 Poles |
| Rated Current | 800 A |
| Rated Voltage | - AC: 600 V AC |
| DC | 250 V DC |
| Interrupting Capacity | - AC, 480 V: 35 kA |
| AC, 600 V | 25 kA |
| DC, 250 V | 22 kA |
| Trip Unit Type | Electronic LS (Long-Time, Short-Time) |
| Frame Size | J/K Frame |
| Ground Fault Protection | Yes |
| Adjustable Long-Time Pickup Range | 320 A – 800 A |
| Adjustable Short-Time Pickup Range | 2 × – 10 × In |
| Adjustable Instantaneous Pickup Range | 2 × – 15 × In |
The Eaton Cutler-Hammer MES3800LS is a specialized trip unit belonging to the Series C circuit breakers line. It features three poles and is built to support substantial electrical loads, rated at up to 800 Amps. This trip unit accommodates both alternating and direct current applications, with a maximum voltage of 600 Volts AC and 250 Volts DC.
Notably, the interrupting capacities are quite robust, rated at 35 kA for 480 V AC, 25 kA for 600 V AC, and 22 kA for 250 V DC, offering excellent protection against faults. The trip unit employs an electronic LS mechanism, allowing for flexible and programmable operational settings. The device is configured within a J/K frame size, which is suitable for various installation environments.
This unit also provides ground fault protection, enhancing safety in electrical systems. Users can adjust the long-time pickup range from 320 Amps to 800 Amps, thus accommodating different load requirements. Moreover, the adjustable short-time and instantaneous pickup settings are specified at 2× to 10× In and 2× to 15× In, respectively, giving operators precise control over trip characteristics in dynamic conditions. Overall, the MES3800LS is engineered to deliver reliability and responsiveness in critical applications requiring effective overload protection.
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