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Schneider Electric A9CR1240 — Residual Current Breakers (RCCB/RCBO)

Schneider Electric A9CR1240 Acti9 RED RCCB, 40 A, 30 mA, Typ

MPNA9CR1240
Active

Schneider Electric Acti9 RED, RCCB recloser, 2P, 40 A, 30 mA Type A, 230 V AC, EN 50557, grey.

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

Specifications

A9CR1240 — Residual Current Protection
ParameterValue
Earth-leakage sensitivity (IΔn)30 mA
Earth-leakage protection class / typeType A
Earth-leakage trip time delayInstantaneous
Local signalling / indication1 LED green/red Residual current device : ON/OFF indication Recloser : ON/OFF indication
A9CR1240 — Electrical Ratings
ParameterValue
Rated current (In)40 A
Rated operational voltage (Ue)230 V AC 50 Hz phase to neutral
Poles description2P
Neutral pole positionLeft
Network typeAC
Network frequency50 Hz
Rated insulation voltage (Ui)500 V
Rated impulse withstand voltage (Uimp)4 kV
Device location in systemOutgoer
Mechanical durability (operating cycles)4000 cycles open-close
A9CR1240 — Identification
ParameterValue
Product nameActi9 RED
Product / component typeResidual current circuit breaker (RCCB)
Device short nameRED
A9CR1240 — Mechanical
ParameterValue
Mounting support35 mm symmetrical DIN rail
Mounting modeFixed
Control typeToggle
Width in 9 mm modules6
Terminal connectionsGuard tunnel terminal 35 mm² rigid Guard tunnel terminal 35 mm² flexible Guard tunnel terminal 35 mm² flexible with ferrule
Wire stripping length12 mm
Terminal tightening torque3 N.m
Width54 mm
Height106 mm
Depth82 mm
A9CR1240 — Environmental
ParameterValue
Operating ambient temperature-5...40 °C
Storage ambient temperature-40...70 °C
IP degree of protectionIP20
Relative humidity95 % at 55 °C
Tropicalisation2
A9CR1240 — Approvals
ParameterValue
StandardsEN 50557

Product details

RCCB recloser with automatic restart logic

The recloser logic operates on a 10-second reclosing time, up to 30 cycles per hour, with a maximum of three consecutive restarts before locking out if the insulation fault persists. Minimum interval between two closings is 180 seconds.

Earthing system compatibility and installation

Occupies 6 x 9 mm pitches (54 mm wide). Depth is 82 mm, height 106 mm. Wire stripping length is 12 mm; tightening torque is 3 N·m.

Listed as current production (active lifecycle stage).

Protection and diagnostics

Manual test function operates above 100 V. Local signalling via a green/red LED indicates RCCB ON/OFF and recloser status. Insulation fault diagnosis stops if a fault is detected; the device restarts only after a transient fault clears. Rated insulation voltage (Ui) is 500 V. Mechanical durability is 4000 open-close cycles. IP20 rated — suitable for enclosed distribution boards only. Compliant with EN 50557 (requirements for automatic reclosing devices for RCCBs). Tropicalisation class 2; relative humidity tolerance 95 % at 55 °C.

Frequently asked questions

Where can I buy A9CR1240 and how is it quoted?

The A9CR1240 is sourced and quoted to order through independent distribution. Submit an RFQ for current availability and pricing.

What are the key ratings of A9CR1240?

Rated 40 A, 230 V AC, 50 Hz, 30 mA Type A earth leakage. 2-pole, TN-S/TT earthing. Complies with EN 50557.

What is the depth of A9CR1240?

Depth is 82 mm, width 54 mm (6 x 9 mm pitches), height 106 mm.

What does 'Fault reset earth leakage' mean on A9CR1240?

It means the recloser resets automatically after a transient earth leakage fault clears. If the fault persists after three restart attempts, the device locks out and requires manual intervention.

MPN
A9CR1240