Siemens SHJD6B400LIG Molded Case Circuit Breaker
- 400A
- 3 Pole
- Unit Mount
Siemens
SHJD6B400LIG
Molded Case Circuit Breaker
Brand
Siemens
SKU
SHJD6B400LIG
Quantity
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Siemens SHJD6B400LIG - 400A 3 Pole Molded Case Circuit Breaker
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Description
Delivering 65 kAIC of interrupting capacity at 480VAC, this 400A molded case circuit breaker is engineered for demanding industrial environments. It mounts into Siemens S4, S5, and SPP panelboards, alongside SB-series switchboards and motor control centers. The non-interchangeable solid-state trip unit features long-time, instantaneous, and ground-fault (LIG) adjustments. True RMS sensing ensures accurate response to overcurrents, providing superior coordination over thermal-magnetic models.Specifications
| Brand | Siemens |
|---|---|
| Series | SHJD6 |
| Amperage | 400A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 35kA @ 600VAC |
| Amperage Range | 80-400A |
|---|
| Frame Type | SHJD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Sentron Panelboards (S4, S5, SPP), Switchboards (SB1, SB2, SB3), Motor Control Centers |
| Trip Technology | Electronic Trip |
|---|---|
| Trip Function Code | LIG |
| Trip Function | Long-Time, Instantaneous, Ground Fault |
| Trip Adjustability | Adjustable |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Undervoltage Release, Lugs |
|---|---|
| Accessories | Lugs Not Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB-1, UL 489 |
| Approval | CE, CSA, UL |
| Temp Rating | 40C |
| Construction Features | High Interrupting Capacity, Non-Interchangeable Trip, Reverse Feed, Solid State Trip Unit, True RMS Sensing, Ground Fault Protection |
Product FAQs
5 answersWhich Siemens panelboards and switchboards are compatible with the SHJD6B400LIG?
This JD-Frame breaker is designed for use in Siemens Sentron S4, S5, and SPP panelboards, as well as SB1, SB2, and SB3 switchboards and compatible Motor Control Centers.
What adjustments are available on the LIG electronic trip unit?
The solid state LIG trip unit allows you to adjust the Long-Time pickup and delay, Instantaneous pickup, and Ground-Fault pickup and delay. This provides precise coordination for equipment protection and system selectivity.
What does the SHJD6 prefix indicate in the catalog number?
The SHJD6 prefix designates this as a Sentron series, high-interrupting JD-Frame breaker. The letter S indicates a solid state electronic trip unit, H indicates high interrupting capacity, and JD6 refers to the specific 400A maximum frame size.
Is the ground fault protection on this breaker intended for personnel safety?
No. The ground fault function on molded case circuit breakers of this size is designed for equipment protection against arcing ground faults, not for Class A personnel protection.
Can this 400A breaker be used on systems with lower continuous current requirements?
Yes. Because it features an adjustable electronic trip unit, the Long-Time pickup can be dialed down to protect circuits that require less than the maximum 400A rating. This offers flexibility for future load changes without replacing the breaker.
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