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Schneider Electric A9KF21125BQ — 1-Pole MCB (DIN Rail)

Schneider Electric A9KF21125BQ Acti9 K60 MCB, 25 A, B Curve,

MPNA9KF21125BQ
Active

Schneider Electric Acti9 K60, miniature circuit breaker, 1P, 25 A, B curve, 10 kA Icn at 240 V AC, DIN rail mount, IP20.

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

A9KF21125BQ — Identification
ParameterValue
Product nameActi9 K60
Product / component typeMiniature circuit-breaker
Product rangeActi9
Device short nameK60H
Poles description1P
Number of protected poles1
Device applicationDistribution
A9KF21125BQ — Electrical & Protection
ParameterValue
Rated current (In)25 A
Tripping curve codeB
Magnetic tripping limit3...5 x In
Breaking capacity (Icu / AIR)10000 A Icn at 240 V AC 50/60 Hz conforming to EN/IEC 60898-1
Network type (AC/DC)AC
Network frequency50/60 Hz
Overvoltage categoryII
Trip unit technologyThermal-magnetic
Control / actuation typeToggle
Mechanical durability (cycles)20000 cycles
A9KF21125BQ — Mounting & Connection
ParameterValue
Terminal connections / wire rangeTunnel type terminals (downstream) 1...25 mm² rigid Tunnel type terminals (upstream) 1...25 mm² rigid Tunnel type terminals (downstream) 1...16 mm² flexible Tunnel type terminals (upstream) 1...16 mm² flexible
Mounting supportDIN rail
Mounting modeFixed
Width18 mm
Height81 mm
Depth70 mm
Tightening torque (by circuit)2 N.m top or bottom
A9KF21125BQ — Environmental
ParameterValue
Operating ambient temperature-5...55 °C
Storage ambient temperature-25...85 °C
IP degree of protectionIP20 conforming to IEC 60529
A9KF21125BQ — Approvals
ParameterValue
Conformity standardsEN/IEC 60898-1
A9KF21125BQ — Electrical
ParameterValue
[Ui] rated insulation voltage500 V AC 50/60 Hz
[Uimp] rated impulse withstand voltage4 kV

Product details

The Schneider Electric A9KF21125BQ is a 1-pole Acti9 K60 miniature circuit breaker (MCB) rated at 25 A with a B tripping curve. It is designed for distribution applications in residential and commercial final circuits where the load is predominantly resistive or low-inrush — lighting, socket outlets, small appliances. Its breaking capacity is 10,000 A Icn at 240 V AC, 50/60 Hz, certified to EN/IEC 60898-1. Thermal-magnetic trip unit. Certified for isolation per EN/IEC 60898-1.

The fixed mounting mode and tunnel-type terminals accept 1 to 25 mm² rigid or 1 to 16 mm² flexible conductors, with a tightening torque of 2 N.m. IP20 rated (finger-safe terminals), so it is intended for installation inside a panel or enclosure that provides the outer IP rating. The tropicalisation treatment (class 2 per IEC 60068-1) means it handles warm, humid environments without corrosion issues — useful for Southeast Asia or coastal plant rooms.

Frequently asked questions

What is the breaking capacity of A9KF21125BQ?

10,000 A Icn at 240 V AC, 50/60 Hz, conforming to EN/IEC 60898-1. That is the standard domestic/commercial rating — sufficient for most final circuits fed by a typical distribution transformer.

What terminals does A9KF21125BQ accept?

Tunnel-type terminals accepting 1 to 25 mm² rigid or 1 to 16 mm² flexible conductors. Tightening torque is 2 N.m, and the wire strip length is 14 mm.

What compliance documentation is available for A9KF21125BQ?

The breaker is certified to EN/IEC 60898-1 and carries IP20 per IEC 60529. It is tropicalised per IEC 60068-1 class 2. Standard Schneider documentation (declaration of conformity, CE, UKCA) is available on request.

MPN
A9KF21125BQ