Eaton / Cutler-Hammer CHND312T36W Molded Case Circuit Breaker
- 1200A
- 3 Pole
- Panel Mount
Quantity
Eaton / Cutler-Hammer CHND312T36W - 1200A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Designed for demanding industrial applications, the CHND312T36W is a 3-pole, 1200A MCCB from Eaton's Series C N-Frame family. It provides robust branch circuit protection in high-capacity electrical systems. This breaker installs into Eaton Series C panelboards, switchboards, and motor control centers. It replaces older units like the PDF53M1200E3NN. Equipped with a Digitrip 310 electronic trip unit, it offers adjustable LSIG settings. It is 100% rated and delivers 65kAIC at 480V.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | CHND312T36W |
| Series | CHND |
| Amperage | 1200A |
| Poles | 3 |
| Mounting Style | Panel Mount |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 35kA @ 600VAC |
| Amperage Range | 600-1200A |
|---|
| Frame Type | N |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Series C 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 | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Lug Kits, Rating Plugs, Padlock Attachment |
|---|---|
| Accessories | Without Terminals |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | 100% Rated, HACR Rated, Reverse Feed, Non-Interchangeable Trip |
Product FAQs
8 answersDoes the CHND312T36W come with terminal lugs installed?
No. The "W" suffix in the catalog number indicates this breaker is supplied without terminals. Lugs or terminal kits must be purchased separately for cable connections, or it can be connected directly to buswork.
What equipment is the CHND312T36W designed to fit?
This N-Frame breaker is compatible with Eaton and Cutler-Hammer Series C panelboards, switchboards, and motor control centers designed to accept bolt-on N-Frame devices.
Is the electronic trip unit on the CHND312T36W field-replaceable?
No. For Eaton Series C N-Frame circuit breakers, the trip unit is built-in as an integral part of the breaker frame and cannot be replaced in the field.
Do I need a rating plug to operate this circuit breaker?
Yes. Eaton N-Frame breakers equipped with electronic trip units require a compatible rating plug to be installed. The plug establishes the maximum continuous current rating and is necessary for the breaker to function.
Is there a difference between the Eaton and Cutler-Hammer versions of the CHND312T36W?
No. Eaton acquired Cutler-Hammer and continues to manufacture this Series C N-Frame circuit breaker under both brand names using the exact same catalog number and specifications.
What specific protection functions does the LSIG trip unit provide?
The electronic trip unit on this breaker provides adjustable Long-Time (overload), Short-Time (short circuit delay), Instantaneous (immediate short circuit), and Ground-Fault protection, allowing for precise coordination in power distribution systems.
What does the "H" in the CHND312T36W catalog number signify?
The "H" indicates that this is the High-Interrupting version of the N-Frame breaker. It provides an elevated interrupting capacity of 100kAIC at 240V, 65kAIC at 480V, and 35kAIC at 600V, compared to standard ND-Frame models.
Is the CHND312T36W a 100% rated circuit breaker?
Yes. The "C" prefix in the CHND catalog number indicates that this breaker is 100% rated, meaning it is suitable for continuous operation at its full 1200-amp capacity when installed in an appropriately sized enclosure.
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