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Schneider Electric A9FDB620 — 1-Pole MCB (DIN Rail)

Schneider Electric A9FDB620 Acti9 iDPN N Arc, 20A C-Curve, 6

MPNA9FDB620
Obsolete

Schneider Electric Acti9 iDPN N Arc, arc fault detection circuit breaker (AFDD+MCB), 1P+N, 20 A, C-curve, 6 kA Icn, DIN rail mount.

Schneider Electric A9FDB620 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

A9FDB620 — Identification
ParameterValue
Product nameActi9 iDPN N Arc
Product / component typeArc fault detection circuit breaker
Product rangeActi9
Device short nameiDPN N Arc
Poles description1P + N
Number of protected poles1
A9FDB620 — Electrical & Protection
ParameterValue
Rated current (In)20 A at 30 °C
Rated operational voltage (Ue)230 V AC 50 Hz conforming to IEC 62606 230 V AC 50 Hz conforming to EN/IEC 60898-1
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
Network type (AC/DC)AC
Network frequency50 Hz
Overvoltage categoryIII
Trip unit technologyThermal-magnetic
Control / actuation typeToggle
Mechanical durability (cycles)20000 cycles
A9FDB620 — Mounting & Connection
ParameterValue
Terminal connections / wire rangeTunnel type terminal for 1 cable(s) 10 mm² flexible Tunnel type terminal for 2 cable(s) 2.5 mm² flexible Tunnel type terminal for 1 cable(s) 16 mm² rigid Tunnel type terminal for 2 cable(s) 2.5 mm² rigid
Mounting supportDIN rail
Mounting modeClip-on
Width36 mm
Height81 mm
Depth72 mm
Tightening torque (by circuit)2 N.m
A9FDB620 — Environmental
ParameterValue
Operating ambient temperature-25...60 °C
Storage ambient temperature-40...85 °C
IP degree of protectionIP20
A9FDB620 — Approvals
ParameterValue
Conformity standardsIEC 60898-1 EN/IEC 62606
A9FDB620 — Electrical
ParameterValue
[Ui] rated insulation voltage400 V AC
[Uimp] rated impulse withstand voltage4 kV conforming to IEC 60898-1

Product details

Arc fault detection + MCB in one DIN-rail module

It protects a 20 A final circuit against overloads, short-circuits (C-curve, magnetic trip 5...10 x In), and series/parallel arcing faults that standard MCBs cannot detect.

Depth is 72 mm, height 81 mm — fits within the envelope of a standard Acti9 distribution board without protruding past the front cover. Cable entry is from the top, which is the standard orientation for Acti9 busbar feeders.

Designed and tested to IEC 60898-1 for MCB performance and EN/IEC 62606 for arc fault detection. Limitation class 3 per IEC 60898-1 means the device limits let-through energy in the highest category — relevant for downstream equipment protection. Pollution degree 2, overvoltage category III, and tropicalisation severity B (28-day damp heat per IEC 60068-2-30) qualify it for unconditioned indoor environments. Local signalling shows ON, OFF, and fault trip status via the toggle position.

Frequently asked questions

What is the A9FDB620 used for?

It is an arc fault detection circuit breaker (AFDD+MCB) for 20 A, 230 V AC final circuits. It protects against overloads, short circuits, and series/parallel arcing faults in residential and light-commercial distribution boards.

What is the breaking capacity of the A9FDB620?

The breaking capacity is 6000 A Icn at 230 V AC, 50 Hz, conforming to EN/IEC 60898-1.

Where can I buy the A9FDB620?

The A9FDB620 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.

MPN
A9FDB620