Siemens / ITE F3B025M Molded Case Circuit Breaker
- 25A
- 3 Pole
- Bolt-On
Siemens / ITE
F3B025M
Molded Case Circuit Breaker
Brand
Siemens / ITE
SKU
F3B025M
Quantity
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Siemens / ITE F3B025M - 25A 3 Pole Molded Case Circuit Breaker
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25A 3 Pole Molded Case Circuit Breaker
25A 3 Pole Molded Case Circuit Breaker
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Description
Built for commercial and industrial applications, the Siemens F3B025M is a 3-pole, 25A molded case circuit breaker from the legacy F-Frame series. It installs into older ITE and Siemens E-Frame panelboards, providing a seamless fit without the need for modification kits. Rated for 25kAIC at 240VAC and 14kAIC at 480VAC, this bolt-on MCCB features fixed thermal-magnetic trip units for reliable long-time and instantaneous (LI) protection. It is replaced by the ED43B025 model.Specifications
| Brand | Siemens / ITE |
|---|---|
| Part Number | F3B025M-R |
| Series | F3B |
| Amperage | 25A |
| 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 | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, 50C Ambient Calibration, Non-Interchangeable Trip |
Product FAQs
5 answersWhich panelboards are compatible with the F3B025M breaker?
This bolt-on unit is specifically designed to fit classic ITE and Siemens E-Frame panelboards and switchboards, allowing you to maintain older industrial panels without a complete modern retrofit.
Is the F3B025M a current production model?
This is a legacy F-Frame circuit breaker. Facility managers often source this exact unit to maintain existing systems. When a full panel upgrade is performed, it is typically replaced by the modern ED6 series equivalent.
How is the F3B025M installed into the panel?
It utilizes a bolt-on mounting style that attaches directly to the bus bar of compatible E-Frame enclosures. The breaker includes factory-installed line and load lugs that accept 14 to 1/0 AWG copper or aluminum wiring.
Can the F3B025M be utilized in direct current systems?
Yes. While primarily used for AC systems up to 600V, this breaker is also fully rated for 250VDC applications, providing a 10kA interrupting capacity for DC industrial control circuits.
What type of fault protection does this breaker provide?
It is equipped with a fixed thermal-magnetic trip unit. The thermal component handles long-time overload protection, while the magnetic component provides an instantaneous response to severe short circuits.
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