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Schneider Electric M9F22345 Miniature Circuit Breaker

  • 45A
  • 3 Pole
  • DIN Rail
Schneider Electric M9F22345
Miniature Circuit Breaker
Brand Schneider Electric
SKU M9F22345
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  • 45A
  • 3 Pole
  • DIN Rail

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Schneider Electric M9F22345 - 45A 3 Pole Miniature Circuit Breaker

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$260.83 In Stock

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Description

Built for industrial environments, this 45A supplementary protector delivers robust thermal-magnetic defense against overloads and short circuits. It is an ideal choice for safeguarding specialized machinery and OEM control panels. Designed for seamless compatibility, the 3-pole breaker mounts onto standard DIN rail systems. Its compact footprint helps maximize available enclosure space. Rated for 10kA at 240VAC, this unit utilizes a C-curve trip mechanism to handle moderate inrush currents.

Specifications

Key specifications
Brand Schneider Electric
Series M9F
Amperage 45A
Poles 3
Mounting Style DIN Rail
Voltage 240VAC, 480Y/277VAC, 415VAC, 440VAC
Phase 3
AIC Rating 10kA @ 240VAC, 5kA @ 480Y/277VAC, 10kA @ 415VAC, 6kA @ 440VAC
Fit and installation
Frame Type M9F
Terminal Type Screw/Clamp Terminal
For Use With DIN Rail Systems, OEM Control Panels
Wire Gauge 18-2 AWG
Max Wire 2 AWG
Min Wire 18 AWG
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Curve C
Trip Adjustability Fixed
Standards and features
Available Options Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment, Motor Operator, Rotary Handle, Terminal Shields
Accessories Padlock Attachment (Provision)
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 answers
What is the trip curve for the M9F22345 circuit breaker?

This Multi9 C60SP breaker features a C-curve trip profile. It is designed to trip instantaneously at 7 to 10 times the rated current, making it suitable for moderate inrush currents in control panels and industrial equipment.

Is the Schneider Electric M9F22345 UL listed as a branch circuit breaker?

No, the M9F22345 is a UL 1077 recognized supplementary protector. It is not a UL 489 branch circuit breaker and must be used in conjunction with an appropriate upstream branch circuit protection device.

What is the recommended terminal tightening torque for the M9F22345?

The screw clamp terminals on this 45A breaker should be torqued to 31 lb.in (3.5 N.m). The terminals accept 18 to 2 AWG copper wire.

How much DIN rail space does the M9F22345 3-pole breaker require?

This breaker has a width of 54 mm (2.13 inches), which occupies six standard 9 mm DIN rail modules.

Can I add auxiliary contacts or a shunt trip to the M9F22345?

Yes, this Multi9 C60SP breaker is compatible with standard Multi9 electrical auxiliaries, including OF auxiliary contacts, SD alarm switches, and MX shunt trip releases.

What is the IP protection rating for this miniature circuit breaker?

The breaker itself has an IP20 rating. When installed in a modular enclosure, the front face provides IP40 protection against solid objects.

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