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Schneider Electric

Schneider Electric M9F43115 15 A IEC Miniature Circuit Breaker

SKU CH-7CTZ-4A1N8

Single-pole 15 A IEC miniature circuit breaker with D-curve thermal-magnetic trip for 240/415 V AC branch protection on DIN rail

  • ColorGray
  • 15 A thermal-magnetic trip protects branch circuits
  • 14 kA interrupting rating clears high fault currents
  • Single-pole D-curve suits inductive loads at 240/415 V AC
  • Screw-clamp terminals accept 18 to 8 AWG wire
  • Compact 4.06 × 0.71 × 2.83 in frame fits DIN-rail panels

15 A DIN-Rail Miniature Circuit Breaker

The Schneider Electric M9F43115 is a single-pole IEC breaker rated at 15 A with a D-curve thermal-magnetic trip. It mounts on standard DIN rail and provides branch-circuit protection for control panels and HVAC equipment. The unit carries a UL 489 listing and a 14 kA interrupting rating at 120/240 V AC.

Before ordering verify voltage and wiring

Confirm the supply voltage does not exceed 240/415 V AC or 60 V DC and that the panel uses DIN-rail mounting. The screw-clamp terminals accept conductors from 18 AWG to 8 AWG. Ensure the available fault current is within the 14 kA rating and that a single-pole device matches the circuit design.

Toggle actuator and C60BP frame simplify

The front-mounted toggle gives clear on/off indication and manual reset after a trip. The C60BP frame fits standard 63 A DIN-rail cutouts without adapters. Screw-clamp terminals speed up wiring and maintain secure connections in vibration-prone environments.

Highlights

  • 15 A thermal-magnetic trip protects branch circuits
  • 14 kA interrupting rating clears high fault currents
  • Single-pole D-curve suits inductive loads at 240/415 V AC
  • Screw-clamp terminals accept 18 to 8 AWG wire
  • Compact 4.06 × 0.71 × 2.83 in frame fits DIN-rail panels

Specifications

BrandSCHNEIDER ELECTRIC
ColorGray

Questions about this item

Does the M9F43115 circuit breaker include mounting hardware or DIN rail clips in the box?

The breaker mounts on standard DIN rail; mounting hardware and rail are sold separately.

Which curve type and voltage rating suit a 15 A branch circuit with motor loads?

Curve D handles high inrush currents; the 240/415 V AC and 60 V DC ratings cover typical branch circuits.

What does the 14 kA AIR rating mean for a panel fed at 240 V AC?

At 240 V AC the breaker can safely interrupt up to 14 kA of fault current.

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