ABB / General ElectricSKHC3608L3XX
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ABB / General Electric SKHC3612L4XX Molded Case Circuit Breaker
- 1200A
- 3 Pole
- Unit Mount
ABB / General Electric
SKHC3612L4XX
Molded Case Circuit Breaker
Brand
ABB / General Electric
SKU
SKHC3612L4XX
Quantity
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ABB / General Electric SKHC3612L4XX - 1200A 3 Pole Molded Case Circuit Breaker
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Description
Built for industrial environments, the SKHC3612L4XX is a 1200A, 3-pole electronic trip MCCB from the GE Spectra RMS series. It provides microprocessor-based protection for complex distribution systems. This breaker mounts into GE A-Series panelboards, Spectra switchboards, and motor control centers. Featuring adjustable Long-Time, Short-Time, Instantaneous, and Ground Fault (LSIG) functions, it offers superior coordination and a 35kAIC rating at 480V.Specifications
| Brand | ABB / General Electric |
|---|---|
| Part Number | SKHC3612L4XX |
| Series | SKHC |
| Amperage | 1200A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 25kA @ 600VAC |
| Amperage Range | 600-1200A |
|---|
| Frame Type | SKHC |
|---|---|
| Terminal Type | Lugs |
| For Use With | Spectra Series Switchboards, Panelboards, Motor Control Centers, GE A-Series Panelboards |
| 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, Bell Alarm, Padlock Attachment, Motor Operator, Rotary Handle, Lug Kits, Rating Plugs |
|---|---|
| Accessories | Lugs Not Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CE, CSA, IEC, UL |
| Temp Rating | -20C to 55C |
| Construction Features | 100% Rated, Reverse Feed, HACR Rated, True RMS Sensing, Interchangeable Trip Unit |
Product FAQs
7 answersDoes the SKHC3612L4XX include ground-fault protection?
Yes. The "L4" suffix in the catalog number specifically designates an electronic trip unit equipped with Long-Time, Short-Time, Instantaneous, and Ground-Fault (LSIG) protection functions.
Which trip functions are adjustable on the SKHC3612L4XX?
The electronic trip unit features adjustable pickup and delay settings for the Long-Time, Short-Time, Instantaneous, and Ground-Fault (LSIG) functions. This allows for precise selective coordination with other protective devices in your electrical distribution system.
Does this Spectra RMS breaker require a rating plug to operate?
Yes. The SKHC3612L4XX requires a field-installable, front-mounted rating plug to establish the breaker's continuous ampere rating, up to its 1200A maximum frame capacity.
How does the electronic trip unit handle high harmonic loads?
The solid-state trip unit in the SKHC3612L4XX utilizes true RMS digital sampling. This provides accurate overcurrent protection and prevents nuisance tripping in systems with high harmonic content, such as those powering variable frequency drives or arc furnaces.
Can internal accessories be field-installed on the SKHC3612L4XX?
Yes. GE Spectra RMS circuit breakers feature a modular design that allows internal accessories, such as shunt trips, auxiliary switches, and undervoltage releases, to be installed in the field without disassembling the breaker mechanism.
Is the SKHC3612L4XX suitable for reverse feed applications?
Yes. GE Spectra RMS circuit breakers with electronic trip units are UL Listed for reverse feed, allowing flexibility in how the breaker is wired within the panelboard or switchboard.
Will this breaker arrive with GE or ABB branding?
Following ABB's acquisition of GE Industrial Solutions, Spectra RMS breakers like the SKHC3612L4XX may feature either GE or ABB branding depending on the production date. The physical dimensions, mounting, and electrical specifications remain identical.
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