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Schneider Electric A9D77420 — Residual Current Breakers (RCCB/RCBO)

Schneider Electric A9D77420 Acti9 iC60 RCBO, 20A C-curve 30m

MPNA9D77420
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Schneider Electric Acti9 iC60 RCBO, 4P, 20 A rated, C-curve, 30 mA earth leakage, 6 kA breaking capacity, clip-on DIN rail mount.

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

Specifications

A9D77420 — Residual Current Protection
ParameterValue
Earth-leakage sensitivity (IΔn)30 mA
Earth-leakage protection class / typeType A-SI (Super Immunised)
Earth-leakage trip time delayInstantaneous
Residual-current tripping technologyVoltage independent
Trip unit technologyThermal-magnetic
Local signalling / indicationON, OFF, fault trip
A9D77420 — Electrical Ratings
ParameterValue
Rated current (In)20 A
Rated operational voltage (Ue)380...415 V AC 50 Hz
Poles description4P
Network typeAC
Network frequency50 Hz
Rated insulation voltage (Ui)500 V AC 50 Hz
Rated impulse withstand voltage (Uimp)4 kV
Overvoltage categoryIII conforming to IEC 60364
Device location in systemOutgoer
Electrical durability10000 cycles
Mechanical durability (operating cycles)20000 cycles
A9D77420 — Identification
ParameterValue
Product nameActi9 iC60 RCBO
Product / component typeResidual current breaker with overcurrent protection (RCBO)
Product range / familyActi9
Device short nameiC60 RCBO
A9D77420 — Mechanical
ParameterValue
Mounting supportDIN rail
Mounting modeClip-on
Control typeToggle
Width in 9 mm modules8
Terminal connectionsTunnel type terminal top or bottom 1...35 mm² rigid Tunnel type terminal top or bottom 1...25 mm² flexible Tunnel type terminal top or bottom 1...25 mm² flexible with ferrule
Wire stripping length12 mm for top or bottom connection
Terminal tightening torque2 N.m
Width72 mm
Height86 mm
Depth78 mm
A9D77420 — Environmental
ParameterValue
Operating ambient temperature-25...60 °C
Storage ambient temperature-40...70 °C
IP degree of protectionIP40 (distribution enclosure) conforming to IEC 60529 IP20 conforming to IEC 60529
Relative humidity95 % at 55 °C
Tropicalisation2
A9D77420 — Approvals
ParameterValue
StandardsEN/IEC 60947-2 EN/IEC 61009-2-1

Product details

It carries a 20 A rated current on a C-curve trip characteristic and integrates 30 mA earth-leakage protection, so one device covers both the branch-circuit overcurrent and the personnel / equipment GFCI function on a three-phase outgoer. Breaking capacity is 6 kA Icu at 380…415 V AC 50 Hz per EN/IEC 60947-2, with an Icn of 6 kA per EN/IEC 61009-2-1. Clip-on mounting to DIN rail, 9 mm pole pitch, 72 mm wide × 86 mm high × 78 mm deep. IP40 in a distribution enclosure, IP20 on the terminals. The thermal-magnetic trip unit is field-proven in the Acti9 range; mechanical durability is 20,000 cycles, electrical 10,000 cycles.

Integration & wiring

Tunnel-type terminals top and bottom accept 1…35 mm² rigid, 1…25 mm² flexible, or 1…25 mm² flexible with ferrule. Tightening torque 2 N·m; strip length 12 mm. The 9 mm pole pitch matches standard Acti9 busbars and comb-bridge accessories. Local signalling shows ON, OFF, and fault-trip status via the toggle position. The device is intended as an outgoer in a distribution board — not a main incomer. The 30 mA earth-leakage threshold is the standard for personnel protection in most IEC-based installations.

Frequently asked questions

What is the breaking capacity of A9D77420?

6 kA Icu at 380…415 V AC 50 Hz per EN/IEC 60947-2, and 6 kA Icn per EN/IEC 61009-2-1.

What earth-leakage sensitivity does A9D77420 provide?

30 mA, integrated into the same 4-pole module as the overcurrent protection.

Where can I buy A9D77420 and how is it quoted?

Sourced through independent distribution and quoted to order against an RFQ. Availability and current pricing are confirmed at quote time.

What compliance documentation does A9D77420 carry?

IMQ, KEMA-KEUR, NF, and VDE quality labels; certified to EN/IEC 60947-2 and EN/IEC 61009-2-1; overvoltage category III per IEC 60364.

MPN
A9D77420