Siemens FJ63B150 Molded Case Circuit Breaker
- 150A
- 3 Pole
- Bolt-On
Quantity
Siemens FJ63B150 - 150A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Providing dependable overcurrent protection, the Siemens FJ63B150 is a 3-pole, 150A molded case circuit breaker. It is an excellent choice for maintaining and servicing existing commercial and industrial electrical infrastructure. This legacy device bolts securely into Siemens P1, P2, and P3 panelboards, as well as SB switchboards and older I-T-E enclosures. Facilities upgrading their systems can use the FXD63B150 as a modern substitute.Specifications
| Brand | Siemens |
|---|---|
| Part Number | FJ63B150-R |
| Series | FJ6 |
| Amperage | 150A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 25kA @ 240VAC, 22kA @ 480VAC, 18kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | FJ63 |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3 Panelboards, SB Switchboards, I-T-E F-Frame Panelboards |
| Wire Gauge | 6 AWG - 350 kcmil (Cu/Al) |
| Max Wire | 350 kcmil |
| Min Wire | 6 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Lugs |
| Standards | CSA C22.2 No. 5, NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Non-Interchangeable Trip |
Product FAQs
5 answersWhat panelboards and switchboards are compatible with the FJ63B150?
This breaker bolts securely into Siemens P1, P2, and P3 panelboards, as well as SB switchboards and legacy I-T-E F-Frame enclosures.
What is the modern replacement for the legacy FJ63B150?
Facilities upgrading their electrical systems can use the Siemens FXD63B150 as a modern, direct substitute for this legacy F-Frame breaker.
What does the LI trip function indicate on this model?
The LI designation means this thermal-magnetic breaker features fixed long-time and fixed instantaneous trip functions, providing standard overload and short-circuit protection without adjustable dials.
What is the standard lug kit used on this F-Frame breaker?
The standard line and load lug kit is part number TA1FD350A, which accommodates 6 AWG to 350 kcmil copper or aluminum conductors.
What internal accessories are compatible with the FJ63B150?
This breaker supports standard Siemens F-Frame internal accessories, including shunt trips, auxiliary switches, undervoltage releases, and alarm switches.
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