Schneider Electric M9F21225 2 Pole Circuit Breaker
The Schneider Electric M9F21225 is a 2 Pole thermal magnetic molded case circuit breaker with a current rating of 25 Amps and a voltage rating of 240/415/440VAC. It has an interrupting rating of 14kAIC at 240VAC. The M9F21225 has a DIN rail mounting type.
What type of trip curve does the M9F21225 feature?
This model features a B-curve thermal-magnetic trip profile. It is designed to trip between 3.2 and 4.8 times the rated current, making it suitable for sensitive equipment with very low inrush currents.
Is the M9F21225 suitable for branch circuit protection?
No, this unit is a UL 1077 supplementary protector. It is intended for use inside appliances or electrical equipment where branch circuit protection is already provided or not required.
What wire sizes are accepted by the terminals on this breaker?
The screw clamp tunnel terminals are designed to accept copper wiring ranging from 18 AWG to 8 AWG.
What are the physical dimensions of this 2-pole breaker?
It measures 1.42 inches wide, 3.19 inches high, and 2.83 inches deep. The 1.42-inch width allows it to occupy two standard 18 mm slots on a DIN rail.
Can I add a shunt trip or auxiliary contact to this breaker?
Yes, this breaker accepts field-installable Multi9 accessories, including MX shunt trips, OF status contacts, and SD fault indicating contacts.
What safety standards does this Multi9 breaker meet?
It is recognized under UL 1077 for supplementary protection and is also compliant with IEC/EN 60947-2 and CSA C22.2 No 235 standards.
What is the IP rating of this miniature circuit breaker?
The breaker has an IP20 rating on the terminals and an IP40 rating for the enclosure when installed in a modular panel.
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