Siemens SJD69300NGT Molded Case Circuit Breaker
- 300A
- 3 Pole
- Unit Mount
Quantity
Siemens SJD69300NGT - 300A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
The Siemens SJD69300NGT is a 3-pole, 300A molded case circuit breaker engineered for demanding commercial and industrial environments. It mounts into Siemens Sentron panelboards, switchboards, and motor control centers. Equipped with a Sensitrip III electronic trip unit, it offers fully adjustable long-time, short-time, instantaneous, and ground fault (LSIG) protection. This JD frame breaker includes a neutral sensing transformer and can be upgraded to the 3VA series with a retrofit kit.Specifications
| Brand | Siemens |
|---|---|
| Part Number | SJD69300NGT |
| Series | SJD6 |
| Amperage | 300A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 25kA @ 600VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens Sentron Panelboards, Switchboards, Motor Control Centers |
| 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 | Neutral Sensing Transformer, Lugs Not Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Non-Interchangeable Trip, True RMS Sensing |
Product FAQs
5 answersWhat enclosures and equipment are compatible with the SJD69300NGT?
This breaker is designed for use in Siemens Sentron panelboards, switchboards, and motor control centers.
Is this breaker rated for reverse connection?
Yes, the SJD69300NGT is acceptable for reverse connection applications, allowing for bottom-feed wiring configurations.
What protection functions are included in the LSIG electronic trip unit?
The LSIG trip unit provides fully adjustable protection parameters, including Long-Time for overloads, Short-Time and Instantaneous for short circuits, and Ground-Fault protection for equipment safety.
How is the SJD69300NGT secured inside the panel?
This is a unit-mount, bolt-on circuit breaker. It bolts directly to the buswork in compatible Siemens Sentron enclosures rather than snapping onto a DIN rail or plugging into a bus.
Does this breaker provide ground-fault protection for equipment?
Yes, the G in the LSIG electronic trip unit designates integrated ground-fault protection, which helps protect equipment from damaging low-level fault currents.
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