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Schneider Electric A9N21548 — 1-Pole MCB (DIN Rail)

Schneider Electric A9N21548 iDPN MCB, 20 A, C-Curve, 1P+N, 4

MPNA9N21548
Obsolete

Schneider Electric Clario iDPN miniature circuit breaker, A9N21548, 20 A rated current, C-curve, 1P+N, 4500 A breaking capacity at 230 V AC, EN/IEC 60898-1.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

A9N21548 — Identification
ParameterValue
Product nameIDPN
Product / component typeMiniature circuit-breaker
Product rangeClario
Device short nameiDPN
Poles description1P + N
Number of protected poles1
Device applicationDistribution
A9N21548 — 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)4500 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
A9N21548 — 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
A9N21548 — Environmental
ParameterValue
Operating ambient temperature-25...70 °C
Storage ambient temperature-40...70 °C
IP degree of protectionIP20 conforming to IEC 60529
A9N21548 — Approvals
ParameterValue
Conformity standardsEN/IEC 60898-1
A9N21548 — 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 protects a single pole plus neutral (1P+N) and is rated to interrupt fault currents up to 4500 A at 230 V AC per EN/IEC 60898-1.

The 20 A rated current (In) and C-curve (magnetic trip between 5 and 10 × In) mean this breaker is sized for general-purpose lighting and socket-outlet circuits where inrush from fluorescent ballasts or small motors is moderate — it will hold through a brief surge but trip fast on a hard short.

Clip-on mounting to a standard 35 mm DIN rail; the 18 mm width (2 x 9 mm pitches) means it occupies two modular spaces in a consumer unit or distribution board. The tunnel-type terminals accept up to 16 mm² rigid or 10 mm² flexible copper on both line and load sides — enough for a 20 A circuit using 2.5 mm² or 4 mm² cable. The white housing carries ON/OFF indication on the toggle and is IP20 rated for dry indoor enclosures.

Frequently asked questions

Where can I buy the A9N21548 and get a price?

The A9N21548 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit a request for quotation (RFQ) for a firm price and delivery estimate.

What is the breaking capacity of the A9N21548?

The A9N21548 has a breaking capacity of 4500 A Icn at 230 V AC, 50/60 Hz, conforming to EN/IEC 60898-1. That is the rated short-circuit capacity for a single-pole breaker in a domestic or light commercial distribution board.

What wire sizes does the A9N21548 accept?

The tunnel-type terminals accept 0.75 to 16 mm² rigid or 0.33 to 10 mm² flexible copper on both upstream and downstream sides. Strip length is 13 mm; tightening torque is 2 N·m.

MPN
A9N21548