Alternating voltage measuring relay RM2S (2 Module)

Three-phase monitoring relay for checking phase sequence, phase loss and voltage asymmetry
Suitable for three-phase networks 380…415 V with 50 or 60 Hz
Voltage asymmetry threshold adjustable from 5…25 %
Intervention delay adjustable from 0.2…10 s
Automatic reset after normal operating conditions are restored
Signalling via green power-on LED and red alarm LED
1 SPDT relay output with positive safety
Self-supplied version without separate auxiliary supply

Datasheet

Relay for monitoring voltage asymmetry, phase failure and phase sequence

Type	Three-phase monitoring relay for checking voltage asymmetry, phase sequence and phase loss
Network	Three-phase line 380…415 V, 50 and 60 Hz
Alarm functions	Wrong phase sequence or phase connection, lack of one or more phases, voltage asymmetry
Rated voltage	380…415 V phase-phase
Waveform	Sinusoidal, form factor 1.11
Rated frequency	50…60 Hz, selectable
Rated burden	≤ 2.7 VA
Voltage asymmetry threshold	Continuously adjustable by trimmer, range 5…25 %
Intervention time	Continuously adjustable by trimmer, range 0.2…10 s
Reset	Automatic
Power-on signalling	Green LED “ON”
Alarm signalling	Red LED “Alarm” and relay switching
Output	1 SPDT relay contact
Contact rating	5 A / 250 VAC at cosφ 1; 3 A / 250 VAC at cosφ 0.4; 5 A / 30 VDC
Execution	Positive safety, normally energized relay
Auxiliary supply	Supply taken from measurement, self-supplied
Installation category	III
Pollution degree	2
Insulation reference voltage	450 V
Impulse withstand voltage	5 kV, 1.2/50 µs, 0.5 J
Impulse test circuit	Input, relay output
AC voltage test 1	2.5 kV R.M.S., 50 Hz / 1 min
AC test circuit 1	Input, relay output
AC voltage test 2	4 kV R.M.S., 50 Hz / 1 min
AC test circuit 2	All circuits and earth
EMC	Emission tests according to EN 50081-1 / EN 55011, immunity tests according to EN 50082-2

Three-phase monitoring relay for checking phase sequence, phase loss and voltage asymmetry
Suitable for three-phase networks 380…415 V with 50 or 60 Hz
Voltage asymmetry threshold adjustable from 5…25 %
Intervention delay adjustable from 0.2…10 s
Automatic reset after normal operating conditions are restored
Signalling via green power-on LED and red alarm LED
1 SPDT relay output with positive safety
Self-supplied version without separate auxiliary supply

Datasheet

Relay for monitoring voltage asymmetry, phase failure and phase sequence

Type	Three-phase monitoring relay for checking voltage asymmetry, phase sequence and phase loss
Network	Three-phase line 380…415 V, 50 and 60 Hz
Alarm functions	Wrong phase sequence or phase connection, lack of one or more phases, voltage asymmetry
Rated voltage	380…415 V phase-phase
Waveform	Sinusoidal, form factor 1.11
Rated frequency	50…60 Hz, selectable
Rated burden	≤ 2.7 VA
Voltage asymmetry threshold	Continuously adjustable by trimmer, range 5…25 %
Intervention time	Continuously adjustable by trimmer, range 0.2…10 s
Reset	Automatic
Power-on signalling	Green LED “ON”
Alarm signalling	Red LED “Alarm” and relay switching
Output	1 SPDT relay contact
Contact rating	5 A / 250 VAC at cosφ 1; 3 A / 250 VAC at cosφ 0.4; 5 A / 30 VDC
Execution	Positive safety, normally energized relay
Auxiliary supply	Supply taken from measurement, self-supplied
Installation category	III
Pollution degree	2
Insulation reference voltage	450 V
Impulse withstand voltage	5 kV, 1.2/50 µs, 0.5 J
Impulse test circuit	Input, relay output
AC voltage test 1	2.5 kV R.M.S., 50 Hz / 1 min
AC test circuit 1	Input, relay output
AC voltage test 2	4 kV R.M.S., 50 Hz / 1 min
AC test circuit 2	All circuits and earth
EMC	Emission tests according to EN 50081-1 / EN 55011, immunity tests according to EN 50082-2