Eaton / Cutler-Hammer CNDC312T36W Molded Case Circuit Breaker
- 1200A
- 3 Pole
- Panel Mount
Quantity
Eaton / Cutler-Hammer CNDC312T36W - 1200A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Part of Eaton's Series C N-Frame family, the CNDC312T36W is a 1200-amp, three-pole molded case circuit breaker designed for demanding commercial and industrial environments. It is engineered to provide robust power distribution protection and is 100% rated for continuous operation. This panel-mount breaker installs into Eaton Pow-R-Line panelboards, switchboards, and motor control centers.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | CNDC312T36W |
| Series | CNDC |
| Amperage | 1200A |
| Poles | 3 |
| Mounting Style | Panel Mount |
| Voltage | 600VAC |
| Phase | 3 |
| AIC Rating | 200kA @ 240VAC, 100kA @ 480VAC, 50kA @ 600VAC |
| Amperage Range | 600-1200A |
|---|
| Terminal Type | Lugs |
|---|---|
| For Use With | Eaton Pow-R-Line Panelboards, Switchboards, Motor Control Centers |
| Trip Technology | Electronic Trip |
|---|---|
| Trip Function Code | LSIG |
| Trip Function | Long-Time, Short-Time, Instantaneous, Ground Fault |
| Trip Adjustability | Adjustable |
| Available Options | Lugs, Rating Plug, Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Digitrip 310 Trip Unit |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | 100% Rated, HACR Rated, Current Limiting, True RMS Sensing |
Product FAQs
8 answersIs the Eaton CNDC312T36W circuit breaker 100% rated for continuous operation?
Yes, the C prefix in the CNDC catalog number indicates that this breaker is 100% rated. It is suitable for continuous operation at its full 1200A capacity when installed in an appropriately sized enclosure.
What does the T36 designation mean in the CNDC312T36W catalog number?
The T36 suffix indicates that the breaker is equipped with a Digitrip RMS 310 electronic trip unit featuring Long-Time, Short-Time, Instantaneous, and Ground Fault (LSIG) protection.
Does the CNDC312T36W require a rating plug to operate?
Yes, this circuit breaker requires a compatible rating plug to function. The rating plug establishes the maximum continuous current rating and must be installed to make the breaker operational.
Is the trip unit on the CNDC312T36W field replaceable?
No, Eaton Series C N-Frame circuit breakers have the electronic trip unit built in as an integral part of the breaker. While the rating plug is interchangeable, the trip unit itself is factory installed and non-interchangeable.
What enclosures or assemblies can the CNDC312T36W be installed in?
This N-Frame breaker is engineered for use within Eaton Pow-R-Line panelboards, switchboards, and motor control centers.
Can this breaker be used to replace Cutler-Hammer branded CNDC312T36W units?
Yes, Eaton and Cutler-Hammer are the same manufacturer. An Eaton CNDC312T36W is a direct, exact replacement for an older Cutler-Hammer breaker with the identical catalog number.
Is the CNDC312T36W HACR rated?
Yes, all Eaton Series C N-Frame circuit breakers carry an HACR rating, making them suitable for group motor applications in heating, air conditioning, and refrigeration systems.
Are the trip settings on the CNDC312T36W adjustable?
Yes, the Digitrip electronic trip unit allows for adjustable settings across its Long-Time, Short-Time, Instantaneous, and Ground Fault (LSIG) parameters to properly coordinate with your specific system requirements.
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