Schneider Electric M9R12491 GFEP Molded Case Circuit Breaker
- 100A
- 4 Pole
- DIN Rail
Quantity
Schneider Electric M9R12491 - 100A GFEP Molded Case Circuit Breaker
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Description
Built for ground fault equipment protection, the Schneider Electric M9R12491 is a 4-pole molded case circuit breaker. It is rated 100A at 415VAC and 480Y/277VAC, with a rated frequency of 50/60Hz. This Multi9 family, GFP series breaker uses DIN Rail mounting and is calibrated at 40 °C. It has UL approval and meets UL 1053, with a height of 3.20 in and width of 2.80 in.Specifications
| Brand | Schneider Electric |
|---|---|
| Part Number | M9R12491 |
| Series | Multi9 |
| Amperage | 100A |
| Poles | 4 |
| Mounting Style | DIN Rail |
| Voltage | 415VAC, 480Y/277VAC |
| Standards | UL 1053, UL 489 |
|---|---|
| Approval | UL |
| Temp Rating | -25C to 60C |
Product FAQs
7 answersHow should I use the 100A rating when selecting this breaker?
The Schneider Electric M9R12491 has a rated current of 100A. Use that rating when matching the device to the circuit's load requirements and conductor sizing.
How do I interpret the 415VAC and 480Y/277VAC voltage ratings?
Match the circuit voltage and system configuration to the applicable rating. The 480Y/277VAC rating applies to a wye system, while 415VAC is a separate rated voltage.
What type of ground-fault protection does this device offer?
GFEP means ground-fault equipment protection. Choose this device for an equipment ground-fault protection application; UL 1053 is the applicable ground-fault protection standard.
What mounting method and space should I plan for?
This device mounts on DIN rail and measures 3.20 in high, 2.80 in wide and 2.4 in deep. Use those dimensions to plan the mounting layout and space allocation.
What torque should I use when tightening the terminals?
Tighten the terminals to 31.0 lb-in using a torque tool. Applying the specified torque helps achieve a secure electrical connection without excessive tightening.
How should I account for ambient temperature during installation?
The operating temperature range is -25 to 60 °C, and the calibration temperature is 40 °C. Check the ambient temperature at the device location against the operating range, and use 40 °C as the calibration reference.
How does the frequency rating guide circuit selection?
Schneider Electric M9R12491 is rated for 50/60Hz. Match the circuit's supply frequency to this rating when selecting the device.
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