Siemens SJD69400NGT Molded Case Circuit Breaker
- 400A
- 3 Pole
- Unit Mount
Quantity
Siemens SJD69400NGT - 400A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Engineered for industrial applications, the Siemens SJD69400NGT operates as a 3-pole, 400A molded case circuit breaker within the Sentron family. This unit-mount device installs into Siemens panelboards, switchboards, and motor control centers. It can be replaced by the 3VA Series via retrofit kit. Featuring a Sensitrip III electronic trip unit, it delivers 35kAIC at 480V and includes adjustable LSIG functions for comprehensive ground fault coordination.Specifications
| Brand | Siemens |
|---|---|
| Part Number | SJD69400NGT |
| Series | SJD6 |
| Amperage | 400A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 25kA @ 600VAC |
| Amperage Range | 80-400A |
|---|
| Frame Type | SJD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Sentron Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | 3/0 AWG - 500 kcmil |
| 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 | Lugs Not Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CSA, IEC, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Non-Interchangeable Trip, True RMS Sensing |
Product FAQs
7 answersWhich Siemens enclosures are compatible with the SJD69400NGT?
This JD-frame breaker is designed for installation in Siemens Sentron panelboards, switchboards, and motor control centers.
Does the SJD69400NGT come with terminal lugs installed?
No, this specific configuration is supplied without lugs. You will need to source compatible JD-frame lug kits separately based on your conductor material and wire size requirements.
How is the LSIG trip unit on the SJD69400NGT adjusted?
The Sensitrip III solid-state trip unit features adjustable dials on the face of the breaker, allowing precise field adjustments for Long-Time, Short-Time, Instantaneous, and Ground-Fault pickup and delay settings.
Is the SJD69400NGT suitable for reverse-feed applications?
Yes. Because it features a non-interchangeable trip unit, it meets UL 489 requirements for reverse feeding in power distribution systems.
What frame size category does the SJD69400NGT fall under?
It is part of the Siemens JD Frame family. It shares the same mounting footprint as other 400A JD-frame breakers, allowing it to fit into standard Sentron unit-mount spaces.
Does this breaker provide personnel ground-fault protection?
No, the ground-fault function in the LSIG trip unit is designed for equipment protection against arcing ground faults. It is not a Class A GFCI device for personnel protection.
What does the NGT suffix indicate on this Siemens catalog number?
The NGT suffix indicates that the breaker is equipped with a Ground-Fault trip function and is factory-supplied without terminal lugs.
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