Schneider Electric M9F21245 Circuit Breaker
- 45A
- 2 Pole
- DIN Rail
Quantity
Schneider Electric M9F21245 2 Pole Circuit Breaker
New
Quantity
Description
Schneider Electric M9F21245 2 Pole Circuit Breaker
The Schneider Electric M9F21245 is a 2 Pole thermal magnetic molded case circuit breaker with a current rating of 45 Amps and a voltage rating of 240/415/440VAC. It has an interrupting rating of 10kAIC at 240VAC. The M9F21245 has a DIN rail mounting type.
Specifications
| Brand | Schneider Electric |
|---|---|
| Series | Multi9 |
| Amperage | 45A |
| Poles | 2 |
| Mounting Style | DIN Rail |
| Voltage | 240VAC, 480Y/277VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 240VAC, 5kA @ 480Y/277VAC |
| Frame Type | M9F |
|---|---|
| Terminal Type | Screw/Clamp Terminal |
| 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
6 answersWhat does the B trip curve on the M9F21245 indicate?
The B trip curve indicates that the breaker will magnetically trip at 3.2 to 4.8 times its 45-amp rating. This fast-acting curve is designed for sensitive electronic equipment and control circuits with very low inrush currents.
Does the M9F21245 meet UL standards for branch circuit protection?
No, the M9F21245 is UL 1077 recognized as a supplementary protector, not a UL 489 branch circuit breaker. It must be used in conjunction with an approved branch circuit protection device.
How much panel space does the M9F21245 occupy on a DIN rail?
This 2-pole miniature circuit breaker occupies 36 mm of width on a standard 35 mm DIN rail, which is equivalent to four 9 mm pitches in the Schneider Multi 9 system.
Is the M9F21245 compatible with Schneider Electric Multi 9 accessories?
Yes, this C60SP series breaker is compatible with field-installable Multi 9 electrical auxiliaries, including shunt trips, undervoltage releases, and auxiliary contacts for remote status indication.
What types of applications are best suited for the M9F21245?
As a B-curve supplementary protector, it is commonly used in industrial control panels, communication equipment, computers, medical devices, and other sensitive applications requiring precise overcurrent protection.
What is the difference between the Multi 9 C60SP and C60BP series?
The C60SP series, which includes the M9F21245, is UL 1077 recognized for supplementary protection. The C60BP series is UL 489 listed for branch circuit protection.
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.