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Voltage Measurement Relays

RM4

Power Supply Circuit Specifications
Type of Relay		RM4UA0			RM4UA3
Rated Supply Voltage (Un)	Vac 50/60 Hz	24 Vac	110–130 Vac	220–240 Vac	24–240 Vac	110–130 Vac	220–240 Vac	380–415 Vac
Rated Supply Voltage (Un)	Vdc	. . .	. . .	. . .	24–240 Vdc	. . .	. . .	. . .
Average Consumption at Un	Vac	2 VA	1.9–3.3 VA	2.7–3.5 VA	1.5–3.3 VA	1.9–3.3 VA	2.7–3.4 VA	2.7–3 VA
Average Consumption at Un	Vdc	. . .	. . .	. . .	1.2 W	. . .	. . .	. . .

Output Relay and Operating Specifications
Type of Relay		RM4UA0			RM4UA3
Number of C/O Contacts SPDT		1			2
Output Relay State		Energized when: voltage measured > threshold setting			Energized when: voltage measured > threshold setting (">" function) voltage measured < threshold setting ("<" function)
Setting Accuracy of the Switching Threshold		As % of the full scale value: ± 5 %
Switching Threshold Drift		≤ 0.06 % per degree centigrade, depending on the permissible ambient temperature
Switching Threshold Drift		≤ 0.5 %, within the supply voltage range (0.85–1.1 Un)
Hysteresis (adjustable)		5-30 % of the voltage threshold setting
Setting Accuracy of the Time Delay		As % of the full scale value: ± 10 %
Time Delay Drift		. . .			≤ 0.5 %, within the supply voltage range (0.85–1.1 Un)
Time Delay Drift		. . .			≤ 0.07 % per degree centigrade, depending on temperature
Measuring Cycle		≤ 80 ms
Approvals/Standards
Conforming to Standards		IEC 60255-6 EN 60255-6
Temperature Ratings	Storage	-40° F to 185° F (-40° C to 85° C)
Temperature Ratings	Operational	-4° F to 149° F (-20° C to 65° C)
Supply Voltage Range		-15 to +10% rated of supply voltage

Measuring Input Specifications
Internal Input Resistance and Permissible Overload Depending on the Current Measurement Ranges
Type of Relay	RM4UA1			RM4UA2			RM4UA3
Measurement Range 50-60 Hz Vac and Vdc	0.05–0.5 V	0.3–3 V	0.5–5 V	1–10 V	5–50 V	10–100 V	30–300 V	50–500 V
Internal Input Resistance Ri	6.6 kΩ	43 kΩ	71 kΩ	23 kΩ	112 kΩ	225 kΩ	668 kΩ	1111 kΩ
Permissible Continuous Overload	20 V	60 V	80 V	90 V	150 V	300 V	400 V	550 V
Permissible Non Repetitive Overload for t ≤ 1 s	25 V	80 V	100 V	100 V	200 V	400 V	500 V	550 V

Voltage Measurement Relays: Overvoltage Detection
Time Delay	Voltage to be Measured Depending on Connection VAC or VDC	Width IN	Width mm	Output Relay	Supply Voltage 50/60 Hz	Catalog Number	Price
None	0.05–0.5 V 0.3–3 V 0.5–5 V	0.89	22.5	1 C/O SPDT	24 Vac	RM4UA01B	$279.
					110–130 Vac	RM4UA01F	279.
					220–240 Vac	RM4UA01M	279.
	1–10 V 5–50 V 10–100 V	0.89	22.5	1 C/O SPDT	24 Vac	RM4UA02B	279.
					110–130 Vac	RM4UA02F	279.
					220–240 Vac	RM4UA02M	279.
	30–300 V 50–500 V	0.89	22.5	1 C/O SPDT	24 Vac	RM4UA03B	279.
					110–130 Vac	RM4UA03F	279.
					220–240 Vac	RM4UA03M	279.

Voltage Measurement Relays: Overvoltage or Undervoltage Detection
Adjustable Time Delay	Voltage to be Measured Depending on Connection VAC or VDC	Width IN	Width mm	Output Relay	Supply Voltage 50/60 Hz	Catalog Number	Price
0.05–30 s	0.05–0.5 V 0.3–3 V 0.5–5 V	0.89	22.5	2 C/O DPDT	24–240 Vac/dc	RM4UA31MW	$362.
					110–130 Vac	RM4UA31F	311.
					220–240 Vac	RM4UA31M	311.
					380–415 Vac	RM4UA31Q	311.
	1–10 V 5–50 V 10–100 V	1.77	45	2 C/O DPDT	24–240 Vac/dc	RM4UA32MW	362.
					110–130 Vac	RM4UA32F	311.
					220–240 Vac	RM4UA32M	311.
					380–415 Vac	RM4UA32Q	311.
	30–300 V 50–500 v	1.77	45	2 C/O DPDT	24–240 Vac/dc	RM4UA33MW	362.
					110–130 Vac	RM4UA33F	311.
					220–240 Vac	RM4UA33M	311.
					380–415 Vac	RM4UA33Q	311.

For additional information, reference Catalog #8430CT0001R6/02.


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9/8/03

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