Schneider Electric M9F21350 Circuit Breaker
- 50A
- 3 Pole
- DIN Rail
Quantity
Schneider Electric M9F21350 3 Pole Circuit Breaker
New
Quantity
Description
Schneider Electric M9F21350 3 Pole Circuit Breaker
The Schneider Electric M9F21350 is a 3 Pole thermal magnetic molded case circuit breaker with a current rating of 50 Amps and a voltage rating of 240/415/440VAC. It has an interrupting rating of 10kAIC at 240VAC. The M9F21350 has a DIN rail mounting type.
Specifications
| Brand | Schneider Electric |
|---|---|
| Series | Multi9 |
| Amperage | 50A |
| Poles | 3 |
| Mounting Style | DIN Rail |
| Voltage | 240/415/440VAC, 480Y/277VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 240/415/440VAC, 5kA @ 480Y/277VAC |
| Frame Type | M9F |
|---|---|
| Terminal Type | Screw Clamp |
| Trip Technology | Thermal Magnetic |
|---|
| Standards | RoHS, REACh |
|---|---|
| Approval | EN/IEC, GB/T, UL, CSA, CCC, UR |
| Temp Rating | -30 to 70 °C |
Product FAQs
8 answersWhat is the trip curve for the M9F21350?
This breaker features a B-curve thermal-magnetic trip profile, designed to trip between 3.2 and 4.8 times the 50A rated current. It is ideal for protecting sensitive equipment and control circuits with low inrush currents.
Does the interrupting rating differ between UL and IEC standards?
Yes. While it is rated for 10kA under IEC/EN 60947-2, the M9F21350 carries a 5kA interrupting rating at 480Y/277VAC under UL 1077 supplementary protection standards.
What are the UL and IEC standards for this Multi9 breaker?
The M9F21350 is recognized as a UL 1077 supplementary protector and is certified to IEC/EN 60947-2, CSA C22.2 No. 235, and GB 14048.2 standards for global applications.
What wire size and torque are required for the M9F21350 terminals?
The tunnel terminals accept 18 AWG to 2 AWG copper wire. The recommended tightening torque for this 50A model is 31 lb-in (3.5 N.m).
How much DIN rail space does this 3-pole breaker require?
The M9F21350 requires 54mm of width on a standard 35mm DIN rail, which equals three standard 18mm poles.
Can I add auxiliary contacts or shunt trips to this breaker?
Yes, the M9F21350 is compatible with Schneider Electric Multi9 electrical auxiliaries, including OF status contacts, SD fault indicating contacts, and MX shunt trip releases. These accessories clip directly onto the side of the breaker.
Is this breaker suitable for branch circuit protection?
No, the M9F21350 is a UL 1077 supplementary protector. It must be used in conjunction with a UL 489 listed branch circuit breaker or fuse upstream to ensure proper safety compliance.
Is this breaker sold under the Square D brand?
Yes, the M9F21350 is sold under both the Schneider Electric and Square D brands as part of the Multi9 C60SP series. The catalog number remains the same regardless of the brand label.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
100 SuperPoints = $1 off.
Warranties
Add an extra year of protection
60-Day Warranty
Your purchase includes 60 days of SuperBreakers warranty coverage.
Add a 1-year warranty extension in your cart.
Get a Quote
Don’t see what you’re looking for?
We source obsolete and hard-to-find parts every day.
Shipping
Free Shipping Policy
Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
Same Day Shipping
We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments
Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping
All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.