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Schneider Electric A9N21558 — 1-Pole MCB (DIN Rail)

Schneider Electric A9N21558 iDPN N MCB, 20 A C-Curve 1P+N, 1

MPNA9N21558
Obsolete

Schneider Electric Clario iDPN N miniature circuit breaker, A9N21558, 20 A rated, C-curve, 1P+N, 10 kA breaking capacity at 230 V AC, dual-standard certified EN/IEC 60898-1 and IEC 60947-2, DIN-rail clip-on 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

A9N21558 — Identification
ParameterValue
Product nameIDPN
Product / component typeMiniature circuit-breaker
Product rangeClario
Device short nameiDPN N
Poles description1P + N
Number of protected poles1
Device applicationDistribution
A9N21558 — Electrical & Protection
ParameterValue
Rated current (In)20 A
Rated operational voltage (Ue)230 V AC 50/60 Hz between phase and neutral
Tripping curve codeC
Magnetic tripping limit5...10 x In
Breaking capacity (Icu / AIR)10 kA Icu at 230 V AC 50/60 Hz conforming to IEC 60947-2 6000 A Icn at 230 V AC 50/60 Hz conforming to EN/IEC 60898-1
Network type (AC/DC)AC
Network frequency50/60 Hz
Trip unit technologyThermal-magnetic
Control / actuation typeToggle
Mechanical durability (cycles)20000 cycles
A9N21558 — Mounting & Connection
ParameterValue
Terminal connections / wire rangeTunnel type terminals downstream 0.33...10 mm² flexible Tunnel type terminals downstream 0.75...16 mm² rigid Tunnel type terminals upstream 0.33...10 mm² flexible Tunnel type terminals upstream 0.75...16 mm² rigid
Mounting supportDIN rail
Mounting modeClip-on
Width18 mm
Height81 mm
Depth78 mm
Tightening torque (by circuit)2 N.m
A9N21558 — Environmental
ParameterValue
Operating ambient temperature-25...70 °C
Storage ambient temperature-40...70 °C
IP degree of protectionIP20 conforming to IEC 60529
A9N21558 — Approvals
ParameterValue
Conformity standardsEN/IEC 60898-1 EN/IEC 60947-2
A9N21558 — Electrical
ParameterValue
[Ui] rated insulation voltage400 V AC 50/60 Hz conforming to IEC 60947-2
[Uimp] rated impulse withstand voltage4 kV conforming to IEC 60947-2

Product details

It carries dual certification to EN/IEC 60898-1 for household-type protection and IEC 60947-2 for industrial isolation duty, giving it a 10 kA breaking capacity at 230 V AC under the 60947-2 standard.

The 20 A rated current (In) matches standard branch-circuit protection for lighting, socket outlets, or small appliance loads on a 20 A circuit. Breaking capacity of 10 kA Icu at 230 V AC under IEC 60947-2 means this breaker can safely interrupt fault currents up to 10,000 A without welding its contacts or rupturing the case. The dual standard lets you specify it for either a domestic DB or an industrial sub-distribution board. Thermal-magnetic trip technology uses a bimetal strip for overload protection and a solenoid for short-circuit response. The thermal element tracks the load current continuously; the magnetic element reacts to the instantaneous peak. This is the standard, field-proven trip mechanism for general-purpose MCBs.

Clip-on mounting to a standard 35 mm DIN rail (EN 60715) with a 18 mm width per module — the 1P+N occupies two 9 mm pitches. Neutral is on the left, phase on the right. Toggle control with ON/OFF indication on the front face. Tunnel-type terminals accept 0.33–10 mm² flexible or 0.75–16 mm² rigid conductors, with a tightening torque of 2 N.m and a wire stripping length of 13 mm. IP20 finger-safe protection for panel installation.

Frequently asked questions

What is the breaking capacity of the A9N21558?

10 kA Icu at 230 V AC under IEC 60947-2, and 6000 A Icn at 230 V AC under EN/IEC 60898-1.

What is the A9N21558 used for?

It is a 20 A miniature circuit breaker for branch-circuit protection of lighting, socket outlets, and small loads, suitable for both residential and light industrial distribution boards.

Where can I buy the A9N21558?

Sourced and quoted to order against an RFQ through independent distribution, with availability and current pricing confirmed at quote time.

MPN
A9N21558