Schneider Electric M9F21220 Miniature Circuit Breaker
- 20A
- 2 Pole
- DIN Rail
Quantity
Schneider Electric M9F21220 - 20A 2 Pole Miniature Circuit Breaker
New
Quantity
Description
Built for industrial environments, the M9F21220 Multi9 series miniature circuit breaker from Schneider Electric delivers robust supplementary protection for OEM control panels and automated machinery. This two-pole unit mounts onto standard DIN rail systems, ensuring quick integration. It serves as a drop-in replacement for the legacy Merlin Gerin 24078 breaker. Equipped with a B-curve trip, it handles up to 14 kAIC at 240VAC and features a padlockable, reverse-feed design.Specifications
| Brand | Schneider Electric |
|---|---|
| Series | M9F |
| Amperage | 20A |
| Poles | 2 |
| Mounting Style | DIN Rail |
| Voltage | 240VAC, 480Y/277VAC, 125VDC |
| Phase | 1 |
| AIC Rating | 14kA @ 240VAC, 10kA @ 480Y/277VAC, 10kA @ 125VDC |
| Terminal Type | Screw/Clamp Terminal |
|---|---|
| For Use With | DIN Rail Systems, OEM Control Panels |
| Wire Gauge | 18-4 AWG |
| Max Wire | 4 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, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment, Motor Operator, Rotary Handle, Terminal Shields |
|---|---|
| Standards | CSA C22.2 No 235, EN/IEC 60947-2, GB 14048.2, UL 1077 |
| Approval | CCC, CSA, IEC, UR |
| Temp Rating | -30C to 70C |
| Construction Features | Supplementary Protection, Reverse Feed, Common Trip, RoHS Compliant |
Product FAQs
6 answersWhat is the trip curve for the Schneider Electric M9F21220?
The M9F21220 features a B-curve trip characteristic, which is designed to trip between 3.2 and 4.8 times the rated current. This makes it ideal for protecting sensitive equipment and control circuits with low inrush currents.
Is the M9F21220 circuit breaker UL listed for branch circuit protection?
The M9F21220 is a UL 1077 recognized supplementary protector. It is designed for use in OEM control panels and DIN rail systems to provide additional protection where branch circuit protection is already provided or not required.
Can I add auxiliary contacts or shunt trips to the M9F21220?
Yes, the Multi9 C60SP series supports a variety of field-installable accessories, including auxiliary switches, fault trip indicators, shunt trips, and undervoltage releases. These modules mount directly to the left side of the breaker.
Can the M9F21220 be locked out for maintenance?
Yes, the toggle actuator on this breaker is padlockable, allowing for safe lockout and tagout procedures during equipment maintenance.
Is the M9F21220 suitable for both AC and DC control circuits?
Yes, this thermal magnetic breaker is rated for both alternating current and direct current applications, making it versatile for various OEM control panels. It provides up to 10kA of interrupting capacity in 125VDC systems.
What product line does the M9F21220 belong to?
This breaker is part of the Schneider Electric Multi9 C60SP series, which is designed as a multi-standard supplementary protector for global OEM applications.
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