Additional features
[UH,nom] Rated operating voltage	battery operated
Supply voltage limits	183…528 V AC
Power consumption in VA	0…22 VA at 400 V AC 50 Hz
Measuring range	220 - 480 V AC
Voltage detection threshold	183 V
Maximum measurement cycle	150 ms measurement cycle as true RMS value
Adjustable voltage for threshold	2 - 20 % of selected Un; -2 - -17 % in range 220 V AC; +2 - +10 % in range 480 V AC; -2 - -12 % in range 208 V AC
Hysteresis	2 %
Repeatability	± 0.5 % for input and measurement circuit; ± 1 % for time delay
Time delay	Adjustable 0.3 - 30 s, 0 + 10 % Tt – delay time during fault
Time delay adjustment accuracy	10 %
Reset time	1500 ms reset time
[tA] Response time	< 200 ms (on occurrence of fault)
On-delay	650 ms
Output contacts	1 changeover contact
Rated output current	5 A
Max. switching voltage	250 V AC/DC
Switching power in VA	1250 VA
Min. switching current	10 mA at 5 V DC
Max. switching current	5 A AC/DC
Electrical lifetime	100000 cycles
Mechanical life	30000000 cycles
Control circuit frequency	50 - 60 Hz ± 10 %
Accuracy of measurement	± 10 % of full scale value
Conformity marking	CE
Contractual warranty
Warranty (in months)	18
Main features
Product series	Harmony control relay
Device type	Voltage monitor
Product or component type	3-phase control relay
Relay designation	RM17UB3
Relay-monitored parameters	overvoltage and undervoltage between phases
Control type	Without test button
Contact type and composition	1 changeover contact
Product-specific application	For 3-phase supply
Mounting
Electromagnetic compatibility	Emission standard for industrial environments complies with IEC 61000-6-4; Emission standard for residential, commercial and light industrial areas complies with IEC 61000-6-3; Immunity for industrial environments complies with NF EN/IEC 61000-6-2
Standards	IEC 60255-1
Product certifications	GOST; UL; GL; C-Tick; CSA
Policies	89/336/EEC - electromagnetic compatibility; 73/23/EEC - low voltage directive
Ambient temperature during storage	-40…70 °C; -40…70 °C
Operating ambient temperature	-20…50 °C
Relative humidity	95 % at 55 °C corresponds to IEC 60068-2-30
Degree of protection (IP)	IP20 (terminals) in accordance with IEC 60529; IP30 (housing) in accordance with IEC 60529
Pollution degree	3 entspricht IEC 60664-1
Over voltage category	III corresponds to IEC 60664-1
Dielectric test voltage	2 kV, 1 min AC 50 Hz
Insulation resistance	> 500 MOhm at 500 V DC corresponds to IEC 60255-5
[Ui] Rated insulation voltage	400 V corresponds to IEC 60664-1
Operating position	Any position without power reduction
Connections - terminals	Screw terminals, 1 x 0.5 - 4 mm² (AWG 20 - AWG 11) solid without cable end; screw terminals, 2 x 0.5 - 2.5 mm² (AWG 20 - AWG 14) solid without cable end; screw terminals, 1 x 0.2 - 2 x 2.5 mm² (AWG 24 - AWG 12) fine-stranded with cable end; screw terminals, 2 x 0.2 - 1.5 mm² (AWG 24 - AWG 16) fine-stranded with cable end
[M] tightening torque	0.6…1 Nm corresponds to IEC 60947-1
Housing material	Polycarbonate
Local signalling	LED (green) for power ON; LED (yellow) for relay ON
Mounting bracket	35 mm symmetrical DIN rail, conforms to IEC 60715
Reliability data	B10d = 470.000; MTTFd = 502.2 years
Height	90 mm; 88,9 mm
Width	17,5 mm; 17,8 mm
Depth	72 mm; 71,1 mm
Product weight	0,08 kg; 0,08 kg
Packaging units
VPE 1 type	PCE
Number of devices per package	1
VPE 1 height	2,400 cm
VPE 1 width	7,800 cm
VPE 1 length	9,900 cm
Packaging weight (Lbs)	87,000 g
VPE 2 type	S02
VPE 2 quantity	48
VPE 2 height	15,000 cm
VPE 2 width	30,000 cm
VPE 2 length	40,000 cm
VPE 2 weight	4,675 kg

Harmony Control. This voltage monitoring relay monitors three-phase supplies 208-480 VAC (50-60 Hz) for phase failure, as well as exceeding or falling below an adjustable limit value. A relay changer is available for reporting, which can be loaded up to 5 A. The two limit values and a switch-off delay are adjustable. The settings are made using control elements on the front, which can be protected against changes under a transparent cover. Two LEDs show the status. The device is powered by the measuring voltage. The width is 17.5 mm and it is mounted on the top hat rail.