A9E21180 Phase Failure Relay Schneider

This Acti9 iRCP Phase Failure Relay Schneider is a Phase control relay. The voltage measurement range is 0.15VAC to 10VAC. It monitors phases and the presence of voltage on the 3 phases of a 3 phase circuit power supply. It indicates also any phase loss or inversion. It supplies 1 fail-safe change-over contact. The parameter setting is done on the front panel by direct scale by using a screwdriver. It could be used for example to control the power supply of a 3-phase motor. The precision of the display is +/- 10% of the full scale. The time delay on tripping is 0.3s.

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Specifications of A9E21180 phase control relay

range of product Acti9
Product name Acti9 iRC
Product or component type Control relay
Device short name iRCP
Device application Phase control relay
Signal contacts composition 1 C/O


[Ie] rated operational current 8 A at 250 V AC (cos Phi = 1)
local signalling Red LED for fault
It reports phase loss or reversal
Green LED for power on
Type of setting Rotary knob: asymmetry
Selected by wiring: measurement range
Tripping threshold 5…25 % of Us phase asymmetry
Hysteresis 5 %
Time delay range 0.3 s
accuracy error +/- 10 %
[Us] rated supply voltage 400 V AC 50/60 Hz
Power consumption in VA 3 VA
Mounting mode Fixed
mounting support 35 mm symmetrical DIN rail
9 mm pitches 4
height 88.1 mm
Width 36 mm
Depth 67 mm
Net weight 0.21 kg
Colour White
Connections – terminals Tunnel type terminals (top or bottom) 6 cable(s) 1.5 mm² rigid


IP degree of protection IP20
ambient air temperature for operation -5…55 °C
Ambient air temperature for storage -40…80 °C