Schneider Electric M9F21240 Miniature Circuit Breaker
- 40A
- 2 Pole
- DIN Rail
Quantity
Schneider Electric M9F21240 - 40A 2 Pole Miniature Circuit Breaker
New
Quantity
Description
Part of the Multi9 C60SP series, this 40-amp supplementary protector delivers reliable current limiting for industrial applications. It provides essential equipment-level defense where branch circuit protection is already installed or not required. Designed to snap onto standard 35mm DIN rails, it integrates seamlessly into OEM control panels and machinery. The unit accommodates 18-2 AWG wire via screw clamp terminals. Rated for 10kA at 240VAC, it features a B-curve trip profile.Specifications
| Brand | Schneider Electric |
|---|---|
| Series | C60SP |
| Amperage | 40A |
| Poles | 2 |
| Mounting Style | DIN Rail |
| Voltage | 240VAC, 480Y/277VAC, 125VDC |
| Phase | 1 |
| AIC Rating | 10kA @ 240VAC, 5kA @ 480Y/277VAC, 10kA @ 125VDC |
| Terminal Type | Screw/Clamp Terminal |
|---|---|
| For Use With | DIN Rail Panels, OEM Control Panels |
| 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 Curve | B |
| Trip Adjustability | Fixed |
| Available Options | Shunt Trip, Undervoltage Release, Auxiliary Switch, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Padlock Attachment (Provision) |
| Standards | CSA C22.2 No 235, EN/IEC 60898-1, EN/IEC 60947-2, GB 14048.2, UL 1077 |
| Approval | CCC, CE, CSA, EAC, IEC, UR |
| Temp Rating | -30C to 70C |
| Construction Features | Current Limiting, RoHS Compliant |
Product FAQs
6 answersIs the Schneider Electric M9F21240 rated as a branch circuit breaker?
No, the M9F21240 is a UL 1077 recognized supplementary protector. It is designed to provide additional protection within appliances or electrical equipment and cannot be used as a substitute for a UL 489 branch circuit breaker.
What is the trip curve for the M9F21240 circuit breaker?
This breaker features a B-curve trip profile. The magnetic trip is designed to activate between 3.2 and 4.8 times the 40A rated current, making it ideal for protecting sensitive equipment and control circuits with very low inrush currents.
What is the difference between the Multi9 C60SP and C60BP series?
The C60SP series, which includes the M9F21240, consists of UL 1077 supplementary protectors. The C60BP series features UL 489 rated miniature circuit breakers approved for branch circuit protection.
Can auxiliary contacts or shunt trips be added to the M9F21240?
Yes, the Multi9 C60SP series supports field-installable electrical auxiliaries. Accessories like the M9A26914 auxiliary contact (OF), M9A26917 fault indicator (SD), or M9A26948 shunt trip (MX + OF) can be mounted to the left side of the breaker without tools.
What is the operating temperature range for this supplementary protector?
The M9F21240 is rated for operation in ambient temperatures ranging from -30 to 70 degrees Celsius (-22 to 158 degrees Fahrenheit).
What is the IP rating of the M9F21240 terminals?
The screw clamp terminals on this breaker have an IP20 degree of protection, ensuring they are touch-safe for panel builders during installation and maintenance.
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