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Schneider Electric A9N21362 — 1-Pole MCB (DIN Rail)

Schneider Electric A9N21362 DT40N MCB, 3 A, 1P+N, C-Curve

MPNA9N21362
Obsolete

Schneider Electric ProDis DT40N, A9N21362, miniature circuit breaker, 3 A, 1P+N, C-curve, 6 kA Icn / 10 kA Icu, DIN rail clip-on.

Schneider Electric A9N21362 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

A9N21362 — Identification
ParameterValue
Product nameDT40
Product / component typeMiniature circuit-breaker
Product rangeProdis
Device short nameDT40N
Poles description1P + N
Number of protected poles1
Device applicationDistribution
A9N21362 — Electrical & Protection
ParameterValue
Rated current (In)3 A
Rated operational voltage (Ue)230 V AC 50 Hz between phase and neutral
Tripping curve codeC
Magnetic tripping limit5...10 x In
Breaking capacity (Icu / AIR)6000 A Icn at 230 V AC 50 Hz conforming to EN/IEC 60898-1 10 kA Icu at 230...240 V AC 50 Hz conforming to IEC 60947-2
Network type (AC/DC)AC
Network frequency50 Hz
Overvoltage categoryIV
Trip unit technologyThermal-magnetic
Control / actuation typeToggle
Mechanical durability (cycles)20000 cycles
A9N21362 — 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
A9N21362 — Environmental
ParameterValue
Operating ambient temperature-25...70 °C
Storage ambient temperature-40...70 °C
IP degree of protectionIP20 conforming to IEC 60529
A9N21362 — Approvals
ParameterValue
Conformity standardsEN/IEC 60898-1 EN/IEC 60947-2
A9N21362 — Electrical
ParameterValue
[Ui] rated insulation voltage400 V AC 50 Hz
[Uimp] rated impulse withstand voltage4 kV conforming to IEC 60947-2

Product details

The Schneider Electric A9N21362 is a DT40N miniature circuit breaker from the ProDis range, rated 3 A with a C-curve trip characteristic (magnetic tripping at 5 to 10 x In). It is a 1P+N device — one protected pole plus a switched neutral on the left — in a single-module 18 mm width, clip-mounted to DIN rail. The dual standard listing (EN/IEC 60898-1 and EN/IEC 60947-2) means it carries both a domestic-distribution Icn of 6 kA at 230 V AC and an industrial Icu of 10 kA at 230-240 V AC 50 Hz, so it fits residential load centers and industrial sub-distribution panels alike.

The 3 A rating governs the continuous load this breaker can carry without tripping. The 1P+N configuration protects one phase conductor; the neutral pole switches but does not have overcurrent protection, so it is suited for single-phase final sub-circuits where the neutral is opened for isolation.

Integration notes

Clip-on mounting to DIN rail (EN 60715) with tunnel-type terminals accepting 0.33 to 10 mm² flexible or 0.75 to 16 mm² rigid conductors upstream and downstream. The IP20 finger-safe enclosure is standard for panel-mount breakers — not rated for washdown, so keep it inside the enclosure. The toggle switch provides local ON/OFF indication.

Frequently asked questions

Where can I buy A9N21362 and how is it quoted?

This part is sourced to order through independent distribution. Availability and current pricing are confirmed at quote time against an RFQ — submit a request for a firm price and lead time on your required volume.

What does the C-curve mean on this breaker?

The C-curve means the magnetic trip operates at 5 to 10 times the rated current (15 to 30 A for this 3 A unit). It is the standard choice for circuits with moderate inrush — small motors, transformers, capacitor banks, or lighting — where a B-curve would nuisance-trip on start-up.

What is the breaking capacity of A9N21362?

It carries two ratings: 6 kA Icn at 230 V AC per EN/IEC 60898-1 (domestic distribution) and 10 kA Icu at 230-240 V AC per IEC 60947-2 (industrial). The higher Icu figure is the one to use for coordination studies in industrial sub-distribution.

What compliance documentation does Schneider provide for A9N21362?

The breaker is certified to EN/IEC 60898-1 and EN/IEC 60947-2, carries NF quality labeling, and is tropicalized per IEC 60068-1 (2 levels). Pollution degree 3 and overvoltage category IV are specified. Standard RoHS/REACH declarations are available from Schneider Electric's documentation portal for this ProDis DT40N series.

MPN
A9N21362