Risesun Electric NF400-CTA Molded Case Circuit Breaker
- 400A
- 3 Pole
- Unit Mount
Quantity
Risesun Electric NF400-CTA - 400A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Built for industrial power distribution, the Risesun Electric NF400-CTA is a 400A, three-pole molded case circuit breaker. It delivers robust 600VAC performance for demanding control panel applications. Engineered for compatibility, this unit-mount breaker is an exact substitute for Mitsubishi NF400-SWU and NF400-HWU frames. It mounts into Risesun panelboards and legacy enclosures. The breaker features a 20kAIC rating and a fixed thermal-magnetic trip unit with LI protection functions.Specifications
| Brand | Risesun Electric |
|---|---|
| Part Number | NF400-CTA-R |
| Series | NF |
| Amperage | 400A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 600VAC |
| Phase | 3 |
| AIC Rating | 20kA @ 600VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Risesun Panelboards, Control Panels |
| Wire Gauge | 3 AWG - 600 kcmil |
| Max Wire | 600 kcmil |
| Min Wire | 3 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Lugs Not Included |
| Standards | IEC 60947-2 |
| Temp Rating | 40C |
Product FAQs
6 answersCan the Risesun NF400-CTA replace Mitsubishi circuit breakers?
Yes, this unit-mount breaker is engineered as an exact substitute for Mitsubishi NF400-SWU and NF400-HWU frames.
How is the NF400-CTA secured inside a control panel?
It features a unit-mount design, meaning it bolts directly to the backpan or mounting plate of Risesun panelboards and compatible industrial enclosures.
What wire gauge range is supported by the NF400-CTA?
The breaker accommodates conductor sizes from 3 AWG up to 600 kcmil for industrial power distribution applications.
What manufacturing standards and temperature ratings apply to the NF400-CTA?
This breaker is built to IEC 60947-2 standards and is calibrated for operation in a 40 degree Celsius ambient temperature environment.
How does the thermal-magnetic trip unit on this breaker operate?
The fixed thermal-magnetic mechanism provides Long-Time (L) protection to clear sustained overloads and Instantaneous (I) protection to quickly interrupt short-circuit faults.
What types of enclosures are compatible with the NF400-CTA?
This breaker is designed for installation in Risesun panelboards, legacy enclosures, and industrial control panels requiring a 400A unit-mount configuration.
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