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Siemens SHJD69400NGT Molded Case Circuit Breaker
- 400A
- 3 Pole
- Unit Mount
Siemens
SHJD69400NGT
Molded Case Circuit Breaker
Brand
Siemens
SKU
SHJD69400NGT
Quantity
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Siemens SHJD69400NGT - 400A 3 Pole Molded Case Circuit Breaker
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Description
Built for demanding environments, the Siemens SHJD69400NGT is a 3-pole, 400A electronic trip molded case circuit breaker providing advanced microprocessor-based sensing. This breaker mounts into Siemens Sentron panelboards and SB-series switchboards. It replaces the legacy Sensitrip IV SHJD6B400LSIG and includes line and load lugs. Delivering 65 kAIC at 480VAC, it features a solid state trip unit with adjustable long-time, short-time, instantaneous, and ground-fault (LSIG) settings.Specifications
| Brand | Siemens |
|---|---|
| Part Number | SHJD69400NGT |
| 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 |
|---|
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens Sentron Panelboards (S4, S5, SPP), Switchboards (SB1, SB2, SB3), Motor Control Centers |
| Wire Gauge | 3/0 AWG - 500 kcmil (Cu/Al) |
| Max Wire | 500 kcmil |
| Min Wire | 3/0 AWG |
| 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, Alarm Switch, Undervoltage Release |
|---|---|
| Accessories | Line and Load Lugs 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 answersWhat enclosures and panelboards are compatible with the SHJD69400NGT breaker?
This JD-frame breaker is designed for use in Siemens Sentron panelboards (S4, S5, SPP), Siemens switchboards (SB1, SB2, SB3), and compatible Motor Control Centers.
What does the NGT suffix mean in the SHJD69400NGT catalog number?
In the Siemens Sensitrip III nomenclature, the NGT suffix indicates that the solid-state electronic trip unit includes Long-Time, Short-Time, Instantaneous, and Ground Fault (LSIG) protection functions.
Can the SHJD69400NGT be used in reverse-feed applications?
No. According to Siemens specifications, SHJD6 high-interrupting breakers are not acceptable for reverse connection applications.
Is the SHJD69400NGT a 100% rated circuit breaker?
No, this is a standard 80% rated breaker. For a 100% rated version of this breaker, you would need the catalog number SHJD69400NGTH, which includes the H suffix.
What is the difference between the SJD69400NGT and the SHJD69400NGT?
The H in SHJD69400NGT designates it as a High Interrupting capacity breaker (65kA at 480V), whereas the standard SJD69400NGT has a lower interrupting rating (35kA at 480V). Both share the same JD frame and LSIG electronic trip unit.
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