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SCHNEIDER Miniature Circuit Breaker: 40 A Amps, 14kA at 120/240V AC, Screw Clamp - D-Curve, 3-Pole UL489 DIN Rail-Mount Miniature Circuit Breakers
SCHNEIDERD-Curve, 3-Pole UL489 DIN Rail-Mount Miniature Circuit Breakers

SCHNEIDER Miniature Circuit Breaker: 40 A Amps, 14kA at 120/240V AC, Screw Clamp

The SCHNEIDER ELECTRIC IEC Miniature Circuit Breaker (MPN M9F43340) is a D-Curve, 3-Pole UL489 DIN Rail-Mount unit rated at 40 A Amps. It features a Max. AIR Rating of 14kA at 120/240V AC and a Screw Clamp terminal…

SKU 3G-OTH-20708

Brand
SCHNEIDER
Item
Miniature Circuit Breaker: 40 A Amps, 14kA at 120/240V AC, Screw Clamp
Category
D-Curve, 3-Pole UL489 DIN Rail-Mount Miniature Circuit Breakers
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Technical Specifications

SCHNEIDER
Manufacturer Part Number
M9F43340
Type
14kA at 120/240V AC, Screw Clamp, D
Max. AIR Rating
14kA at 120/240V AC
DC Voltage Rating
Not Rated
Terminal Connection
Screw Clamp
View Full Spec Sheet

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SCHNEIDER Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SCHNEIDER ELECTRIC IEC Miniature Circuit Breaker (MPN M9F43340) is a D-Curve, 3-Pole UL489 DIN Rail-Mount unit rated at 40 A Amps. It features a Max. AIR Rating of 14kA at 120/240V AC and a Screw Clamp terminal connection. This breaker is not rated for DC voltage.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the SCHNEIDER ELECTRIC M9F43340 miniature circuit breaker used for?

The SCHNEIDER ELECTRIC M9F43340 is a D-curve, 3-pole UL489 miniature circuit breaker rated at 40 A. It is used for protecting industrial electrical circuits against overloads and short circuits, particularly in applications with high inrush currents like motors or transformers.

What are the specifications of the SCHNEIDER M9F43340 circuit breaker?

The SCHNEIDER M9F43340 is a 40 A, 3-pole miniature circuit breaker with a D-curve trip characteristic. It has a maximum AIR rating of 14kA at 120/240V AC, a screw clamp terminal connection, and is not rated for DC voltage. It mounts on a DIN rail and meets UL489 standards.

Where to buy the SCHNEIDER M9F43340 circuit breaker worldwide?

3G Electric supplies the SCHNEIDER M9F43340 miniature circuit breaker to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us for pricing and lead time on this D-curve, 40 A breaker.

How to select the right SCHNEIDER miniature circuit breaker for my application?

Selecting the right SCHNEIDER miniature circuit breaker involves matching the amp rating (40 A for the M9F43340), voltage (120/240V AC), and trip curve (D for high inrush loads) to your circuit requirements. Ensure the interrupting rating (14kA) exceeds available fault current. Consult a qualified electrician for proper coordination.

Used in

Common applications for SCHNEIDER
Motor starting in conveyor systems — Schneider Altistart ATS 22 soft starters (e.g., ATS22D17S6U) reduce inrush current.
Speed control for industrial pumps — Schneider Altivar ATV320 VFDs (e.g., ATV320U55N4W) provide variable flow regulation.
Machine safety interlocking — Schneider XPSUAF13AP safety relays monitor emergency stop circuits on assembly lines.
Panel-mounted control stations — Schneider XB5 flush push buttons (ZB5AA5) serve as start/stop operators in MCCs.
Heavy-duty motor switching — Schneider LC1G150LSEA contactors handle 150 A loads in compressor and crusher applications.
Emergency stop actuation — Schneider 9001K mushroom-head push buttons (9001KR25R) provide red, momentary stop functions.

SCHNEIDER Products

3G Electric supplies SCHNEIDER d-curve, 3-pole ul489 din rail-mount miniature circuit breakers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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