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Siemens SHJD69300NT Molded Case Circuit Breaker
- 300A
- 3 Pole
- Unit Mount
Siemens
SHJD69300NT
Molded Case Circuit Breaker
Brand
Siemens
SKU
SHJD69300NT
Quantity
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Siemens SHJD69300NT - 300A 3 Pole Molded Case Circuit Breaker
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Description
Built for robust industrial applications, the Siemens SHJD69300NT is a 3-pole, 300A Sentron JD-frame MCCB. It is equipped with a Sensitrip electronic trip unit providing adjustable long-time, short-time, and instantaneous (LSI) protection for precise coordination. Engineered to mount into Siemens Sentron panelboards and switchboards, it replaces the legacy SHJD6B300LSI. Lugs are not included. Delivering 65 kAIC at 480VAC, this true RMS sensing breaker ensures reliable fault protection.Specifications
| Brand | Siemens |
|---|---|
| Part Number | SHJD69300NT |
| Series | SHJD6 |
| Amperage | 300A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 35kA @ 600VAC |
| Amperage Range | 60-300A |
|---|
| 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 | LSI |
| Trip Function | Long-Time, Short-Time, Instantaneous |
| Trip Adjustability | Adjustable |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Undervoltage Release, Lugs |
|---|---|
| Accessories | Lugs not included (requires TA2J6500 or similar) |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB-1, UL 489 |
| Approval | CE, CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Interchangeable Trip Unit |
Product FAQs
6 answersWhat does the "NT" suffix mean in the SHJD69300NT catalog number?
The "NT" suffix indicates that the circuit breaker is supplied without terminal lugs. Lugs must be purchased separately based on your specific wire size and material requirements.
Which lug kits are compatible with the 300A JD-frame SHJD69300NT breaker?
The standard aluminum/copper lug kit for Siemens JD-frame breakers is the TA2J6500, which accepts two #3/0 AWG to 500 kcmil cables. Lugs must be purchased separately as this breaker features an "NT" (No Terminals) suffix.
What trip functions are available on the SHJD69300NT?
This breaker features a Sensitrip electronic trip unit with LSI functions, allowing you to adjust the Long-Time, Short-Time, and Instantaneous trip settings for precise coordination in your electrical system.
What equipment is the SHJD69300NT designed to be installed in?
This unit-mount MCCB is designed for use in Siemens Sentron panelboards (including S4, S5, and SPP), switchboards (SB1, SB2, SB3), and motor control centers.
Is the SHJD69300NT suitable for reverse connection applications?
No, Siemens SHJD6 frame circuit breakers are not acceptable for reverse connection (reverse feed) applications.
What legacy circuit breaker does the SHJD69300NT replace?
The SHJD69300NT is the direct replacement for the legacy Siemens SHJD6B300LSI circuit breaker.
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