Siemens / ITE F3B015 Molded Case Circuit Breaker
- 15A
- 3 Pole
- Bolt-On
Quantity
Siemens / ITE F3B015 - 15A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
A drop-in replacement for legacy systems, the Siemens F3B015 is a 3-pole, 15A molded case circuit breaker. It utilizes fixed thermal magnetic technology to deliver consistent protection in commercial environments. This bolt-on MCCB mounts into older ITE and Siemens E-Frame panelboards. It provides a seamless fit for aging infrastructure and is officially replaced by the ED63B015 in modern catalogs. Featuring a 25kAIC rating at 240VAC and HACR certification, it meets rigorous safety standards.Specifications
| Brand | Siemens / ITE |
|---|---|
| Part Number | F3B015-R |
| Series | F3B |
| Amperage | 15A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 25kA @ 240VAC, 14kA @ 480VAC, 14kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | F |
|---|---|
| Terminal Type | Lugs |
| For Use With | ITE / Siemens E-Frame Panelboards |
| Wire Gauge | 14-1/0 AWG (Cu/Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 14 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 | Line and Load Lugs Included |
| Standards | CSA C22.2 No. 5, NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Non-Interchangeable Trip |
Product FAQs
6 answersWhich panelboards are compatible with the F3B015 circuit breaker?
This breaker is designed for installation in legacy ITE and Siemens E-Frame panelboards. Ensure your specific panel interior is configured to accept bolt-on F-frame breakers before installation.
How is the F3B015 secured to the panelboard bus?
It utilizes a bolt-on mounting style. Unlike plug-on breakers, it must be mechanically bolted directly to the panelboard bus bars, providing a secure connection for high-vibration or heavy-duty industrial environments.
Is the F3B015 suitable for direct current (DC) systems?
Yes, while primarily used in AC systems up to 600VAC, this breaker is also rated for 250VDC applications, providing a 10kA interrupting capacity for DC circuits.
Can I use the Siemens F3B015 to replace an original ITE F3B015?
Yes. Siemens acquired the ITE line and maintained the original F-frame physical dimensions and catalog numbers. A modern Siemens F3B015 is a direct, interchangeable replacement for an older ITE-branded breaker of the same part number.
Are the trip settings on the F3B015 adjustable?
No, this breaker features a fixed thermal-magnetic trip unit. Both the long-time overload protection and the instantaneous short-circuit protection are factory-set and cannot be adjusted in the field.
What type of conductors can be used with the F3B015 lugs?
The standard lugs on this breaker are dual-rated for both copper and aluminum conductors, accepting wire gauges from 14 AWG up to 1/0 AWG. Always torque the terminals to the manufacturer specifications printed on the breaker label.
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