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Voltage Measurement Relays

RM4UA

Refer to Catalog 8430CT0001

 

Table 23.173:

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
	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
	Vdc	—	—	—	1.2 W	—	—	—

 

Table 23.174:

Output Relay and Operating Specifications

Type of Relay		RM4UA0•			RM4UA3•
Number of C/O Contacts SPDT		1	8 A resistive UL B300a		2	8 A resistive UL B300a
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
		< 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)
					< 0.07% per degree centigrade, depending on temperature
Measuring Cycle		< 80 ms
Approvals/Standards			File E164353 CCN NKCR			File LR89150 Class 3211 07
Conforming to Standards		IEC 60255-6 EN 60255-6
Temperature Ratings	Storage	–40oF to 185oF (–40oC to 85oC)
	Operational	–4oF to 149oF (–20oC to 65oC)
Supply Voltage Range		–15 to +10% rated of supply voltage

a	For additional contract ratings, refer to the catalog

 

Table 23.175:

Measuring Input Specifications

Internal Input Resistance and Permissible Overload Depending on the Current Measurement Ranges
Type of Relay	RM4UA•1			RM4UA•2			RM4UA•3
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 k-ohm	43 k-ohm	71 k-ohm	23 k-ohm	112 k-ohm	225 k-ohm	668 k-ohm	1111 k-ohm
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

 

 

Table 23.176:

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	279.00
					110–130 Vac	RM4UA01F	279.00
					220–240 Vac	RM4UA01M	279.00
	1–10 V 5–50 V 10–100 V	0.89	22.5	1 C/O, SPDT	24 Vac	RM4UA02B	279.00
					110–130 Vac	RM4UA02F	279.00
					220–240 Vac	RM4UA02M	279.00
	30–300 V 50–500 V	0.89	22.5	1 C/O, SPDT	24 Vac	RM4UA03B	279.00
					110–130 Vac	RM4UA03F	279.00
					220–240 Vac	RM4UA03M	279.00

 

Table 23.177:

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/Vdc	RM4UA31MW	362.00
					110–130 Vac	RM4UA31F	311.00
					220–240 Vac	RM4UA31M	311.00
					380–415 Vac	RM4UA31Q	311.00
	1–10 V 5–50 V 10–100 V	1.77	45