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The Eaton / Cutler Hammer NDC312T35W is a 1200 Amp, 3-pole molded case circuit breaker designed for high-demand industrial and commercial power distribution systems. Built on the NDC frame platform, this breaker features a Digitrip RMS 310 electronic non-interchangeable trip unit with LSG (Long Delay, Short Delay, Ground Fault) protection functions. It offers ultra-high interrupting capacity and current-limiting technology, providing reliable protection against overloads, short circuits, and ground faults while reducing peak fault currents to safeguard electrical equipment.
Product Specifications
- Brand: Eaton / Cutler Hammer
- Model: NDC312T35W
- Product Type: Molded Case Circuit Breaker
- Frame Style: NDC
- Frame Type: N
- Rated Current: 1200 Amperes
- Number of Poles: 3
- Mounting Type: Bolt-On
- Trip Unit Type: Digitrip RMS 310 (Electronic Non-Interchangeable)
- Trip Functions: LSG (Long Delay, Short Delay, Ground Fault)
- Current Limiting: Yes
- Interrupting Capacity: Ultra High
- Operating Temperature Rating: 40°C
- Frequency: 50/60 Hz
- Standard Lug Type: Without Terminals Standard
- Warranty: One Year
Technical Specifications
- L – Long Delay Pickup: Adjustable overload protection via rating plug
- S – Short Delay Pickup: Adjustable with fixed short delay time (I²t response) or adjustable flat response delay
- G – Ground Fault Pickup: Adjustable ground fault pickup with adjustable delay (flat response)
- Current Limiting Design: Minimizes peak fault currents and protects downstream equipment
- Trip Setting Range: 2–8 times the continuous ampere rating
Voltage and Ratings
- Maximum Voltage: 600 VAC
- Frequency: 50/60 Hz
- Current Rating: 1200 Amperes
- Interrupting Capacity:
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- 200 kA @ 240 VAC
- 100 kA @ 480 VAC
- 50 kA @ 600 VAC
Product Data
- Manufacturer: Eaton / Cutler Hammer
- Model Number: NDC312T35W
- Frame Series: NDC Frame
- Connection Type: Bolt-On
- Pole Configuration: 3 Pole
- Rated Current: 1200A
- Voltage Rating: 600 VAC
- Standard Lug Type: Without Terminals
Important Note
This circuit breaker requires a rating plug to function, which is not included with the unit. Please verify the availability and pricing of the appropriate rating plug before ordering if installation is required. The product image shown represents a base model for identification purposes only. If accessories are purchased together with the breaker, they can be installed according to your specified configuration at no additional cost during order processing.