Schneider Electric M9F21340 Circuit Breaker
- 40A
- 3 Pole
- DIN Rail
Quantity
Schneider Electric M9F21340 3 Pole Circuit Breaker
New
Quantity
Description
Schneider Electric M9F21340 3 Pole Circuit Breaker
The Schneider Electric M9F21340 is a 3 Pole thermal magnetic molded case circuit breaker with a current rating of 40 Amps and a voltage rating of 240/415/440VAC. It has an interrupting rating of 10kAIC at 240VAC. The M9F21340 has a DIN rail mounting type.
Specifications
| Brand | Schneider Electric |
|---|---|
| Series | C60SP |
| Amperage | 40A |
| Poles | 3 |
| Mounting Style | DIN Rail |
| Voltage | 240VAC, 415VAC, 440VAC, 480Y/277VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC, 5kA @ 480Y/277VAC |
| Frame Type | M9F |
|---|---|
| Terminal Type | Box Lugs |
| Wire Gauge | 18-2 AWG |
| Max Wire | 2 AWG |
| Min Wire | 18 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Standards | RoHS, REACh |
|---|---|
| Approval | EN/IEC, GB/T, UL, CSA, CCC, UR |
| Temp Rating | -30 to 70 °C |
Product FAQs
8 answersDoes the M9F21340 replace any older Schneider Electric or Square D circuit breakers?
Yes, the M9F21340 is the direct replacement for the legacy Square D and Schneider Electric part number 24152.
What is the trip curve for the M9F21340 miniature circuit breaker?
This breaker features a B-curve thermal-magnetic trip profile, which is designed to trip between 3.2 and 4.8 times the rated current. It is ideal for protecting sensitive equipment and control circuits with low inrush currents.
What are the UL and IEC voltage and interrupting ratings for this breaker?
Under UL 1077, it is rated for 5kA at 480Y/277VAC. Under IEC/EN 60947-2, it carries a 10kA interrupting rating at 240VAC.
What wire sizes are accepted by the terminals on the M9F21340?
The tunnel-type terminals accept copper wire sizes from 14 AWG to 2 AWG.
What is the recommended terminal tightening torque for this 40A Multi9 breaker?
The recommended tightening torque for the wire terminals is 31 lb-in (3.5 N.m).
Is the M9F21340 rated as a branch circuit breaker?
No, this breaker is UL 1077 recognized for supplementary protection. It is not a UL 489 listed branch circuit breaker and must be used in conjunction with an appropriate upstream branch circuit protection device.
How does the M9F21340 mount inside a control panel?
It mounts directly onto a standard 35mm DIN rail, which is typical for modular control panel architectures.
Can I add auxiliary contacts or shunt trips to the M9F21340?
Yes, the Multi9 C60SP series supports field-installable electrical auxiliaries, such as auxiliary contacts (OF), fault indicating contacts (SD), and shunt trips (MX), which mount to the side of the breaker.
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