Siemens CLF63B150 Molded Case Circuit Breaker
- 150A
- 3 Pole
- Bolt-On
Quantity
Siemens CLF63B150 - 150A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Engineered for heavy commercial applications, the Siemens CLF63B150 provides reliable overcurrent protection for electrical systems. This 3-pole, 150-amp molded case circuit breaker features a thermal-magnetic trip unit with fixed thermal and adjustable magnetic settings. It mounts into Siemens Sentron panelboards and switchboards using a secure bolt-on connection. Rated for 600VAC, it delivers an impressive 200kAIC at 240V and 150kAIC at 480V. This legacy model is replaced by the CFD63B150.Specifications
| Brand | Siemens |
|---|---|
| Series | CLF |
| Amperage | 150A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 200kA @ 240VAC, 150kA @ 480VAC, 100kA @ 600VAC |
| Frame Type | CLF |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Sentron Panelboards, Switchboards |
| 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, Adjustable Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Lugs |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Current Limiting, Non-Interchangeable Trip |
Product FAQs
6 answersWhich panelboards accept the CLF63B150 circuit breaker?
This F-frame breaker is designed for bolt-on installation in Siemens Sentron panelboards and switchboards.
How does the current-limiting feature of the CLF frame benefit my electrical system?
Current-limiting breakers interrupt high-level short circuits extremely fast. This restricts the peak let-through current and energy, providing enhanced protection for downstream wiring and sensitive equipment against severe fault damage.
What is the direct replacement for the legacy CLF63B150?
The CLF63B150 is a legacy Siemens breaker. The manufacturer designated modern replacement for this model is the CFD63B150.
How do I adjust the trip settings on this breaker?
The CLF63B150 features a thermal-magnetic trip unit with a fixed thermal element for overload protection and an adjustable magnetic dial on the faceplate to tune the instantaneous short-circuit trip threshold.
Can the trip unit on the CLF63B150 be swapped out for a different amperage?
No, this breaker is constructed with a non-interchangeable trip unit. The 150A thermal-magnetic mechanism is factory-sealed and cannot be modified or replaced in the field.
Does the CLF63B150 support internal accessories?
Yes, this breaker can be equipped with internal accessories such as shunt trips, auxiliary switches, undervoltage releases, and alarm switches to support complex control and monitoring schemes.
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