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Schneider Electric A9KF71440BQ — Circuit Breaker Accessories

Schneider Electric A9KF71440BQ Acti9 K60 MCB, 4P C-curve 40

MPNA9KF71440BQ
Active

Schneider Electric Acti9 K60 miniature circuit breaker, A9KF71440BQ, 4 poles, C-curve, 40 A, 10 kA breaking capacity at 415 V AC, thermal-magnetic trip, DIN rail mount.

Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026

Specifications

A9KF71440BQ — Identification
ParameterValue
Product / component typeMiniature circuit-breaker
Product nameActi9 K60
Product rangeActi9
Device applicationDistribution
A9KF71440BQ — Electrical
ParameterValue
Network type (AC/DC)AC
Rated current [In]40 A
Rated insulation voltage [Ui]500 V AC 50/60 Hz
Rated impulse withstand voltage [Uimp]4 kV
Network frequency50/60 Hz
Poles description4P
Magnetic tripping limit5...10 x In
A9KF71440BQ — Protection & Performance
ParameterValue
Breaking capacity10000 A Icn at 415 V AC 50/60 Hz conforming to EN/IEC 60898-1
Rated service breaking capacity [Ics]7500 A 75 % conforming to EN/IEC 60898-1 - 415 V AC 50/60 Hz
Trip unit technologyThermal-magnetic
Earth-leakage protectionWithout
Suitability for isolationYes conforming to EN/IEC 60898-1
Mechanical durability20000 cycles
Electrical durability10000 cycles
Local signallingWithout
Contact position indicatorNo
A9KF71440BQ — Mechanical
ParameterValue
Connections / terminalsTunnel type terminals (downstream) 1...35 mm² rigid Tunnel type terminals (upstream) 1...35 mm² rigid Tunnel type terminals (downstream) 1...25 mm² flexible Tunnel type terminals (upstream) 1...25 mm² flexible
Device short nameK60H
Control typeToggle
Mounting modeFixed
Mounting supportDIN rail
Usable 9 mm pitches8
Width72 mm
Height81 mm
Depth70 mm
ColourWhite
A9KF71440BQ — Environmental
ParameterValue
IP degree of protectionIP20 conforming to IEC 60529
Pollution degree2
Operating ambient air temperature-5...55 °C
Storage ambient air temperature-25...85 °C
A9KF71440BQ — Approvals
ParameterValue
StandardsEN/IEC 60898-1
A9KF71440BQ — Specifications
ParameterValue
Curve codeC
Number of protected poles4

Product details

The A9KF71440BQ is a 4-pole miniature circuit breaker from the Acti9 K60 series, rated 40 A with a C-curve trip characteristic (magnetic trip between 5 and 10 times In). The thermal-magnetic trip unit handles overloads (thermal bimetal) and short circuits (solenoid) in one package. This is a distribution-grade MCB, not a motor-protection device. The 4-pole configuration makes it suitable for three-phase + neutral circuits in TN or TT systems.

The 72 mm width occupies 8 module pitches at 9 mm each — plan your DIN-rail fill accordingly. Tunnel-type terminals accept up to 35 mm² rigid or 25 mm² flexible cable; strip 14 mm and torque to 3.5 N.m. IP20 finger-safe front is fine for enclosed panels; no washdown rating.

Frequently asked questions

What are the key ratings of A9KF71440BQ?

Rated current 40 A, C-curve, 4 poles, breaking capacity 10 kA at 415 V AC per EN/IEC 60898-1, thermal-magnetic trip, DIN rail mount.

Where can I buy A9KF71440BQ?

This part is sourced and quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time.

What compliance documentation does Schneider provide for A9KF71440BQ?

The MCB is certified to EN/IEC 60898-1 and carries tropicalisation class 2 per IEC 60068-1. The manufacturer typically provides RoHS and REACH declarations on request; check with your sourcing contact.

MPN
A9KF71440BQ