Page 23-34 Download PDF
Home Online Catalog Products Tools and Resources Help

Square D > On-line Catalog > Products > Relays and Timers > Current Measurement Relays: RM4JA	Search

Digest 174 Quick Page Locator Enter a page number from our paper catalog to go directly to that page in our online catalog. Example: 5 - 3

Section - Page -

Current Measurement Relays

RM4JA

Refer to Catalog 8430CT0001

Table 23.168:

Power Supply Circuit Specifications

Type of Relay		RM4JA01			RM4JA31 and RM4JA32
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 23.169:

Output Relay and Operating Specifications

Type of Relay		RM4JA01			RM4JA31 and RM4JA32
Number of C/O Contacts SPDT		1 8 A resistive UL B300a			2 8 A resistive UL B300
Output Relay State		Energized when: current measured > threshold setting			Energized when: current measured > threshold setting (“>” function) current 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 current threshold setting
Setting Accuracy of the Time Delay		As % of the full scale value: ± 10%
Time Delay Drift		—			< 0.07% per degree centigrade, depending on temperature
					< 0.5%, within the supply voltage range (0.85–1.1 Un)
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 contact ratings, see the catalog referred to at the top of the page.

 

Table 23.170:

Measuring Input Specifications

Internal Input Resistance and Permissible Overload, Depending on the Current Measurement Ranges
Type of Relay	RM4JA01 and RM4JA31			RM4JA32
Measurement Range 50–60 Hz Vac and Vdc	3–30 mA	10–100 mA	0.1–1 A	0.3–1.5 A	1–5 A	3–15 A
Internal Input Resistance Ri	33 ohm	10 ohm	1 ohm	0.06 ohm	0.02 ohm	0.006 ohm
Permissible Continuous Overload	0.05 A	0.15 A	1.5 A	2 A	7 A	20 A
Permissible Non Repetitive Overload for t £ 3 s	0.2 A	0.5 A	5 A	10 A	15 A	100 A

 

Table 23.171:

Current Measurement Relays: Overcurrent Detection

Time Delay	Current to be Measured, Depending on Connection Vac or Vdc	Width in.	Width mm	Output Relay	Supply Voltage 50/60 Hz	Catalog Number	$ Price
None	3–30 mA 10–100 mA 0.1–1 A	0.89	22.5	1 C/O, SPDT	24 Vac	RM4JA01B	279.00
					110–130 Vac	RM4JA01F	279.00
					220–240 Vac	RM4JA01M	279.00

 

 

Table 23.172:

Current Measurement Relays: Overcurrent or Undercurrent Detection

Adjustable Time Delay	Current 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	3–30 mA 10–100 mA 0.1–1 A	0.89	22.5	2 C/O, DPDT	24–240 Vac/Vdc	RM4JA31MW	362.00
					110–130 Vac	RM4JA31F	311.00
					220–240 Vac	RM4JA31M	311.00
					380–415 Vac	RM4JA31Q	311.00
	0.3–1.5 A 1–5 A 3–15 A	1.77	45	2 C/O, DPDT	24–240 Vac/Vdc	RM4JA32MW	311.00
					110–130 Vac	RM4JA32F	311.00
					220–240 Vac	RM4JA32M	311.00
					380–415 Vac	RM4JA32Q	311.00

Dimensions

 

I11

Discount Schedule

Modified 4/13/08