Momentary Power & Signal Relays 2,400+

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Part	Manufacturer	Relay Type	Mounting Feature	Relay Action	Relay Function	Coil or Input Supply Type	Reference Standard	Maximum Contact AC Rating (R Load)	Dielectric Strength Between Open Contacts	Relay Form	Operate Time	Electrical Life	Release Time	Coil Power (mW)	Packing Method	Body Length/Diameter	Body Width	Coil Resistance	Sealing	Weight	Maximum AC Coil Current	Physical Dimension	Body Height	Dielectric Strength Between Coil & Contacts	Maximum Contact DC Rating (R Load)	Maximum Operating Temperature	Maximum AC Contact Current	Maximum DC Coil Current	Maximum AC Coil Voltage	Minimum Operating Temperature	DC Coil Release Voltage	Maximum DC Contact Current	Termination Type	DC Coil Operate Voltage	Manufacturer Series	End Contact Material	Maximum DC Contact Voltage	Additional Features	Maximum AC Contact Voltage	Maximum DC Coil Voltage	Contact or Output Supply Type
MJN2CF-AC240	Omron	Power/Signal Relay	Panel Mount	Momentary	DPDT	AC	CSA; UL	10A@240VAC			20 ms	100000 Cycle(s)	10 ms	1.7 W		1.525 in (38.73 mm)	35.56 in (903.224 mm)	9.1 kΩ			7 mA	1.525 x 1.4 x 2.185 in (38.73 x 35.56 x 55.49 mm)	2.185 in (55.49 mm)		10A@28VDC	60 °C (140 °F)	10 A		240 V	-45 °C (-49 °F)		10 A	Quick Connect		MJN		28 V	Coil Operate Voltage (AC): 204 V	240 V		AC/DC
MJN2CF-AC24	Omron	Power/Signal Relay	Panel Mount	Momentary	DPDT	AC	CSA; UL	10A@240VAC			20 ms	100000 Cycle(s)	10 ms	1.7 W		1.525 in (38.73 mm)	35.56 in (903.224 mm)	75 Ω			71 mA	1.525 x 1.4 x 2.185 in (38.73 x 35.56 x 55.49 mm)	2.185 in (55.49 mm)		10A@28VDC	60 °C (140 °F)	10 A		24 V	-45 °C (-49 °F)		10 A	Quick Connect		MJN		28 V	Coil Operate Voltage (AC): 20.4 V	240 V		AC/DC
MJN2CF-DC12	Omron	Power/Signal Relay	Panel Mount	Momentary	DPDT	DC	CSA; UL	10A@240VAC			20 ms	100000 Cycle(s)	10 ms	1.2 W		1.525 in (38.73 mm)	35.56 in (903.224 mm)	120 Ω				1.525 x 1.4 x 2.185 in (38.73 x 35.56 x 55.49 mm)	2.185 in (55.49 mm)		10A@28VDC	70 °C (158 °F)	10 A	100 mA		-45 °C (-49 °F)		10 A	Quick Connect	9 V			28 V		240 V	12 V	AC/DC
MJN2CF-DC24	Omron	Power/Signal Relay	Panel Mount	Momentary	DPDT	DC	CSA; UL	10A@240VAC			20 ms	100000 Cycle(s)	10 ms	1.2 W		1.525 in (38.73 mm)	35.56 in (903.224 mm)	470 Ω				1.525 x 1.4 x 2.185 in (38.73 x 35.56 x 55.49 mm)	2.185 in (55.49 mm)		10A@28VDC	70 °C (158 °F)	10 A	50 mA		-45 °C (-49 °F)		10 A	Quick Connect	18 V			28 V		240 V	24 V	AC/DC
MJN3C-AC120	Omron	Power/Signal Relay	Panel Mount	Momentary	3PDT	AC	CSA; UL	10A@240VAC			20 ms	100000 Cycle(s)	10 ms	2 W				1.7 kΩ			17 mA				10A@28VDC	45 °C (113 °F)	10 A		120 V	-45 °C (-49 °F)		10 A	Quick Connect		MJN		28 V	Coil Operate Voltage (AC): 102 V	240 V		AC/DC
MJN3C-AC12	Omron	Power/Signal Relay	Panel Mount	Momentary	3PDT	AC	CSA; UL	10A@240VAC			20 ms	100000 Cycle(s)	10 ms	2 W				18 Ω			167 mA				10A@28VDC	45 °C (113 °F)	10 A		12 V	-45 °C (-49 °F)		10 A	Quick Connect		MJN		28 V	Coil Operate Voltage (AC): 10.2 V	240 V		AC/DC
MJN3C-AC240	Omron	Power/Signal Relay	Panel Mount	Momentary	3PDT	AC	CSA; UL	10A@240VAC			20 ms	100000 Cycle(s)	10 ms	2 W				7.2 kΩ			8 mA				10A@28VDC	45 °C (113 °F)	10 A		240 V	-45 °C (-49 °F)		10 A	Quick Connect		MJN		28 V	Coil Operate Voltage (AC): 204 V	240 V		AC/DC
MJN3C-AC24	Omron	Power/Signal Relay	Panel Mount	Momentary	3PDT	AC	CSA; UL	10A@240VAC			20 ms	100000 Cycle(s)	10 ms	2 W				72 Ω			83 mA				10A@28VDC	45 °C (113 °F)	10 A		24 V	-45 °C (-49 °F)		10 A	Quick Connect		MJN		28 V	Coil Operate Voltage (AC): 20.4 V	240 V		AC/DC
MJN3C-DC110	Omron	Power/Signal Relay	Panel Mount	Momentary	3PDT	DC	CSA; UL	10A@240VAC			20 ms	100000 Cycle(s)	10 ms	1.2 W				10 kΩ							10A@28VDC	70 °C (158 °F)	10 A	11 mA		-45 °C (-49 °F)		10 A	Quick Connect	82.5 V	MJN		28 V		240 V	110 V	AC/DC
MJN3C-DC5	Omron	Power/Signal Relay	Panel Mount	Momentary	3PDT	DC	CSA; UL	10A@240VAC			20 ms	100000 Cycle(s)	10 ms	1.2 W				20 Ω							10A@28VDC	70 °C (158 °F)	10 A	240 mA		-45 °C (-49 °F)		10 A	Quick Connect	3.75 V	MJN		28 V		240 V	5 V	AC/DC
MJN3C-I-AC240	Omron	Power/Signal Relay	Panel Mount	Momentary	3PDT	AC	CSA; UL	10A@240VAC			20 ms	100000 Cycle(s)	10 ms	2 W				7.2 kΩ			8 mA				10A@28VDC	45 °C (113 °F)	10 A		240 V	-45 °C (-49 °F)		10 A	Quick Connect		MJN		28 V	Coil Operate Voltage (AC): 204 V	240 V		AC/DC
MJN3C-I-DC24	Omron	Power/Signal Relay	Panel Mount	Momentary	3PDT	DC	CSA; UL	10A@240VAC			20 ms	100000 Cycle(s)	10 ms	1.2 W				470 Ω							10A@28VDC	70 °C (158 °F)	10 A	50 mA		-45 °C (-49 °F)		10 A	Quick Connect	18 V	MJN		28 V		240 V	24 V	AC/DC
MJN3C-IN-AC120	Omron	Power/Signal Relay	Panel Mount	Momentary	3PDT	AC	CSA; UL	10A@240VAC			20 ms	100000 Cycle(s)	10 ms	2 W				1.7 kΩ			17 mA				10A@28VDC	45 °C (113 °F)	10 A		120 V	-45 °C (-49 °F)		10 A	Quick Connect		MJN		28 V	Coil Operate Voltage (AC): 102 V	240 V		AC/DC
MJN3C-IN-AC240	Omron	Power/Signal Relay	Panel Mount	Momentary	3PDT	AC	CSA; UL	10A@240VAC			20 ms	100000 Cycle(s)	10 ms	2 W				7.2 kΩ			8 mA				10A@28VDC	45 °C (113 °F)	10 A		240 V	-45 °C (-49 °F)		10 A	Quick Connect		MJN		28 V	Coil Operate Voltage (AC): 204 V	240 V		AC/DC
MJN3C-IN-AC24	Omron	Power/Signal Relay	Panel Mount	Momentary	3PDT	AC	CSA; UL	10A@240VAC			20 ms	100000 Cycle(s)	10 ms	2 W				72 Ω			83 mA				10A@28VDC	45 °C (113 °F)	10 A		24 V	-45 °C (-49 °F)		10 A	Quick Connect		MJN		28 V	Coil Operate Voltage (AC): 20.4 V	240 V		AC/DC
MJN3C-IN-DC110	Omron	Power/Signal Relay	Panel Mount	Momentary	3PDT	DC	CSA; UL	10A@240VAC			20 ms	100000 Cycle(s)	10 ms	1.2 W				10 kΩ							10A@28VDC	70 °C (158 °F)	10 A	11 mA		-45 °C (-49 °F)		10 A	Quick Connect	82.5 V	MJN		28 V		240 V	110 V	AC/DC
MJN3C-IN-DC24	Omron	Power/Signal Relay	Panel Mount	Momentary	3PDT	DC	CSA; UL	10A@240VAC			20 ms	100000 Cycle(s)	10 ms	1.2 W				470 Ω							10A@28VDC	70 °C (158 °F)	10 A	50 mA		-45 °C (-49 °F)		10 A	Quick Connect	18 V	MJN		28 V		240 V	24 V	AC/DC
MJN3C-IN-DC48	Omron	Power/Signal Relay	Panel Mount	Momentary	3PDT	DC	CSA; UL	10A@240VAC			20 ms	100000 Cycle(s)	10 ms	1.2 W				1.8 kΩ							10A@28VDC	70 °C (158 °F)	10 A	25 mA		-45 °C (-49 °F)		10 A	Quick Connect	36 V	MJN		28 V		240 V	48 V	AC/DC
MJN3C-N-AC120	Omron	Power/Signal Relay	Panel Mount	Momentary	3PDT	AC	CSA; UL	10A@240VAC			20 ms	100000 Cycle(s)	10 ms	2 W				1.7 kΩ			17 mA				10A@28VDC	45 °C (113 °F)	10 A		120 V	-45 °C (-49 °F)		10 A	Quick Connect		MJN		28 V	Coil Operate Voltage (AC): 102 V	240 V		AC/DC
MJN3C-N-AC240	Omron	Power/Signal Relay	Panel Mount	Momentary	3PDT	AC	CSA; UL	10A@240VAC			20 ms	100000 Cycle(s)	10 ms	2 W				7.2 kΩ			8 mA				10A@28VDC	45 °C (113 °F)	10 A		240 V	-45 °C (-49 °F)		10 A	Quick Connect		MJN		28 V	Coil Operate Voltage (AC): 204 V	240 V		AC/DC
MJN3C-N-AC24	Omron	Power/Signal Relay	Panel Mount	Momentary	3PDT	AC	CSA; UL	10A@240VAC			20 ms	100000 Cycle(s)	10 ms	2 W				72 Ω			83 mA				10A@28VDC	45 °C (113 °F)	10 A		24 V	-45 °C (-49 °F)		10 A	Quick Connect		MJN		28 V	Coil Operate Voltage (AC): 20.4 V	240 V		AC/DC
MJN3C-N-DC110	Omron	Power/Signal Relay	Panel Mount	Momentary	3PDT	DC	CSA; UL	10A@240VAC			20 ms	100000 Cycle(s)	10 ms	1.2 W				10 kΩ							10A@28VDC	70 °C (158 °F)	10 A	11 mA		-45 °C (-49 °F)		10 A	Quick Connect	82.5 V	MJN		28 V		240 V	110 V	AC/DC
MJN3C-N-DC12	Omron	Power/Signal Relay	Panel Mount	Momentary	3PDT	DC	CSA; UL	10A@240VAC			20 ms	100000 Cycle(s)	10 ms	1.2 W				120 Ω							10A@28VDC	70 °C (158 °F)	10 A	100 mA		-45 °C (-49 °F)		10 A	Quick Connect	9 V	MJN		28 V		240 V	12 V	AC/DC
MJN3C-N-DC24	Omron	Power/Signal Relay	Panel Mount	Momentary	3PDT	DC	CSA; UL	10A@240VAC			20 ms	100000 Cycle(s)	10 ms	1.2 W				470 Ω							10A@28VDC	70 °C (158 °F)	10 A	50 mA		-45 °C (-49 °F)		10 A	Quick Connect	18 V	MJN		28 V		240 V	24 V	AC/DC
MJN3C-N-DC48	Omron	Power/Signal Relay	Panel Mount	Momentary	3PDT	DC	CSA; UL	10A@240VAC			20 ms	100000 Cycle(s)	10 ms	1.2 W				1.8 kΩ							10A@28VDC	70 °C (158 °F)	10 A	25 mA		-45 °C (-49 °F)		10 A	Quick Connect	36 V	MJN		28 V		240 V	48 V	AC/DC
MJN3CF-AC120	Omron	Power/Signal Relay	Panel Mount	Momentary	3PDT	AC	CSA; UL	10A@240VAC			20 ms	100000 Cycle(s)	10 ms	2 W		1.525 in (38.73 mm)	35.56 in (903.224 mm)	1.7 kΩ			17 mA	1.525 x 1.4 x 2.185 in (38.73 x 35.56 x 55.49 mm)	2.185 in (55.49 mm)		10A@28VDC	45 °C (113 °F)	10 A		120 V	-45 °C (-49 °F)		10 A	Quick Connect		MJN		28 V	Coil Operate Voltage (AC): 102 V	240 V		AC/DC
MJN3CF-AC240	Omron	Power/Signal Relay	Panel Mount	Momentary	3PDT	AC	CSA; UL	10A@240VAC			20 ms	100000 Cycle(s)	10 ms	2 W		1.525 in (38.73 mm)	35.56 in (903.224 mm)	7.2 kΩ			8 mA	1.525 x 1.4 x 2.185 in (38.73 x 35.56 x 55.49 mm)	2.185 in (55.49 mm)		10A@28VDC	45 °C (113 °F)	10 A		240 V	-45 °C (-49 °F)		10 A	Quick Connect		MJN		28 V	Coil Operate Voltage (AC): 204 V	240 V		AC/DC
MJN3CF-AC24	Omron	Power/Signal Relay	Panel Mount	Momentary	3PDT	AC	CSA; UL	10A@240VAC			20 ms	100000 Cycle(s)	10 ms	2 W		1.525 in (38.73 mm)	35.56 in (903.224 mm)	72 Ω			83 mA	1.525 x 1.4 x 2.185 in (38.73 x 35.56 x 55.49 mm)	2.185 in (55.49 mm)		10A@28VDC	45 °C (113 °F)	10 A		24 V	-45 °C (-49 °F)		10 A	Quick Connect		MJN		28 V	Coil Operate Voltage (AC): 20.4 V	240 V		AC/DC
MJN3CF-DC12	Omron	Power/Signal Relay	Panel Mount	Momentary	3PDT	DC	CSA; UL	10A@240VAC			20 ms	100000 Cycle(s)	10 ms	1.2 W		1.525 in (38.73 mm)	35.56 in (903.224 mm)	120 Ω				1.525 x 1.4 x 2.185 in (38.73 x 35.56 x 55.49 mm)	2.185 in (55.49 mm)		10A@28VDC	70 °C (158 °F)	10 A	100 mA		-45 °C (-49 °F)		10 A	Quick Connect	9 V			28 V		240 V	12 V	AC/DC
MJN3CF-DC24	Omron	Power/Signal Relay	Panel Mount	Momentary	3PDT	DC	CSA; UL	10A@240VAC			20 ms	100000 Cycle(s)	10 ms	1.2 W		1.525 in (38.73 mm)	35.56 in (903.224 mm)	470 Ω				1.525 x 1.4 x 2.185 in (38.73 x 35.56 x 55.49 mm)	2.185 in (55.49 mm)		10A@28VDC	70 °C (158 °F)	10 A	50 mA		-45 °C (-49 °F)		10 A	Quick Connect	18 V			28 V		240 V	24 V	AC/DC
MJN3CF-DC48	Omron	Power/Signal Relay	Panel Mount	Momentary	3PDT	DC	CSA; UL	10A@240VAC			20 ms	100000 Cycle(s)	10 ms	1.2 W		1.525 in (38.73 mm)	35.56 in (903.224 mm)	1.8 kΩ				1.525 x 1.4 x 2.185 in (38.73 x 35.56 x 55.49 mm)	2.185 in (55.49 mm)		10A@28VDC	70 °C (158 °F)	10 A	25 mA		-45 °C (-49 °F)		10 A	Quick Connect	36 V			28 V		240 V	48 V	AC/DC
G2RV-SL500-AC110	Omron	Power/Signal Relay	DIN Rail Mount	Momentary	SPDT	AC	CE; UL; VDE	6A@440VAC			20 ms	50000 Cycle(s)	40 ms	800 mW		3.835 in (97.4 mm)	6.2 in (157.48 mm)			35 g	7 mA	3.835 x 0.244 x 3.5 in (97.4 x 6.2 x 88.9 mm)	3.5 in (88.9 mm)		6A@125VDC	55 °C (131 °F)	6 A		110 V	-40 °C (-40 °F)		6 A	Solder				125 V	Coil Operate Voltage (AC): 88 V, Coil Release Voltage (AC): 11 V	440 V		AC/DC
G2RV-SL500-AC230	Omron	Power/Signal Relay	DIN Rail Mount	Momentary	SPDT	AC	CE; UL; VDE	6A@440VAC			20 ms	50000 Cycle(s)	40 ms	1.7 W		3.835 in (97.4 mm)	6.2 in (157.48 mm)			35 g	7 mA	3.835 x 0.244 x 3.5 in (97.4 x 6.2 x 88.9 mm)	3.5 in (88.9 mm)		6A@125VDC	55 °C (131 °F)	6 A		230 V	-40 °C (-40 °F)		6 A	Solder				125 V	Coil Operate Voltage (AC): 184 V, Coil Release Voltage (AC): 23 V	440 V		AC/DC
G2RV-SL500-DC12	Omron	Power/Signal Relay	DIN Rail Mount	Momentary	SPDT	DC	CE; UL; VDE	6A@250VAC			15 ms	70000 Cycle(s)	5 ms	300 mW		4.201 in (106.7 mm)	6.2 in (157.48 mm)	441 mΩ		35 g		4.201 x 0.244 x 3.5 in (106.7 x 6.2 x 88.9 mm)	3.5 in (88.9 mm)		6A@30VDC	70 °C (158 °F)	6 A	27.2 mA		-40 °C (-40 °F)	1.2 V	6 A	Snap-On	9.6 V			30 V		250 V	12 V	AC/DC
G2RV-SL500-DC24	Omron	Power/Signal Relay	DIN Rail Mount	Momentary	SPDT	DC	CE; UL; VDE	6A@250VAC			15 ms	70000 Cycle(s)	5 ms	300 mW		4.201 in (106.7 mm)	6.2 in (157.48 mm)	1.804 Ω		35 g		4.201 x 0.244 x 3.5 in (106.7 x 6.2 x 88.9 mm)	3.5 in (88.9 mm)		6A@30VDC	70 °C (158 °F)	6 A	13.3 mA		-40 °C (-40 °F)	2.4 V	6 A	Snap-On	19.2 V			30 V		250 V	24 V	AC/DC
G2RV-SL700-AC110	Omron	Power/Signal Relay	DIN Rail Mount	Momentary	SPDT	AC	CE; UL; VDE	6A@440VAC			20 ms	50000 Cycle(s)	40 ms	800 mW		3.65 in (92.7 mm)	6.2 in (157.48 mm)			35 g	7 mA	3.65 x 0.244 x 3.5 in (92.7 x 6.2 x 88.9 mm)	3.5 in (88.9 mm)		6A@125VDC	55 °C (131 °F)	6 A		110 V	-40 °C (-40 °F)		6 A	Screw				125 V	Coil Operate Voltage (AC): 88 V, Coil Release Voltage (AC): 11 V	440 V		AC/DC
G2RV-SL700-AC230	Omron	Power/Signal Relay	DIN Rail Mount	Momentary	SPDT	AC	CE; UL; VDE	6A@440VAC			20 ms	50000 Cycle(s)	40 ms	1.7 W		3.65 in (92.7 mm)	6.2 in (157.48 mm)			35 g	7 mA	3.65 x 0.244 x 3.5 in (92.7 x 6.2 x 88.9 mm)	3.5 in (88.9 mm)		6A@125VDC	55 °C (131 °F)	6 A		230 V	-40 °C (-40 °F)		6 A	Screw				125 V	Coil Operate Voltage (AC): 184 V, Coil Release Voltage (AC): 23 V	440 V		AC/DC
G8H-1C4T-R-DC12	Omron	Power/Signal Relay	Panel Mount	Momentary	SPDT	DC		10A@16VAC			25 ms	100000 Cycle(s)	20 ms	1.44 W	Box	0.886 in (22.5 mm)	15 in (381 mm)	80 Ω				0.886 x 0.591 x 0.866 in (22.5 x 15 x 22 mm)	0.866 in (22 mm)		10A@16VDC	125 °C (257 °F)	10 A	150 mA		-40 °C (-40 °F)	700 mV	10 A	Snap-On	7 V			16 V		16 V	12 V	AC/DC
G8JR-1A7T-R-DC12	Omron	Power/Signal Relay	Panel Mount	Momentary	SPST	DC		50A@16VAC			20 ms	100000 Cycle(s)	20 ms	2.03 W		1.102 in (28 mm)	28 in (711.2 mm)	71 Ω				1.102 x 1.102 x 0.984 in (28 x 28 x 25 mm)	0.984 in (25 mm)		50A@16VDC	125 °C (257 °F)	50 A	169 mA		-40 °C (-40 °F)	1 V	50 A	Snap-On	8 V			16 V		16 V	12 V	AC/DC
6-1415510-1	TE Connectivity	Power/Signal Relay	Panel Mount	Momentary	SPST	DC	UL; VDE	16A@400VAC	1 kVrms	1 Form A	15 ms	50000 Cycle(s)	15 ms	400 mW	Box; Tray	1.142 in (29 mm)	12.7 in (322.58 mm)	360 Ω	RT2	20 g		1.142 x 0.52 x 0.63 in (29 x 13.2 x 16 mm)	0.63 in (16 mm)	4 kVrms		105 °C (221 °F)	16 A	33 mA		85 °C (185 °F)	1.2 V	16 A	Solder/Quick Connect	8.4 V		Silver Nickel			400 V	12 V	AC/DC
7-1415517-1	TE Connectivity	Power/Signal Relay	Panel Mount	Momentary	SPST	DC	UL; VDE	16A@400VAC	1 kVrms	1 Form A	15 ms	100000 Cycle(s)	15 ms	400 mW	Box; Tray	1.142 in (29 mm)	12.7 in (322.58 mm)	360 Ω	RT2	20 g		1.142 x 0.52 x 0.63 in (29 x 13.2 x 16 mm)	0.63 in (16 mm)	4 kVrms		85 °C (185 °F)	16 A	33 mA		70 °C (158 °F)	1.2 V	16 A	Solder/Quick Connect	8.4 V		Silver Nickel			400 V	12 V	AC/DC
EV200ADANA	TE Connectivity	Power/Signal Relay	Panel Mount	Momentary	SPST-NO					1 Form X								40 Ω									500 A					500 A	Solder/Quick Connect			Copper Alloy	900 V		900 V	95 V	AC/DC
EV200HAANA	TE Connectivity	Power/Signal Relay	Panel Mount	Momentary	SPST-NO					1 Form X								3.14 Ω									500 A					500 A	Solder/Quick Connect			Copper Alloy	900 V		900 V	36 V	AC/DC
HC-1	TE Connectivity	Power/Signal Relay	Panel Mount	Momentary	SPDT					1 Form C				2.096 W				335 Ω									25 A					25 A	Solder/Quick Connect				3.5 V	RF Rated; Switch Function SPDT also available	3.5 V	26.5 V	AC/DC
K41C334	TE Connectivity	Power/Signal Relay	Panel Mount	Momentary	SPDT					1 Form C								290 Ω									30 A					30 A	Solder/Quick Connect				5 V	RF Rated; Switch Function SPDT also available		26.5 V	AC/DC
K81A345	TE Connectivity	Power/Signal Relay	Panel Mount	Momentary	SPST-NO					1 Form A								290 Ω									30 A					30 A	Snap-On				10 V			26.5 V	AC/DC
KC-12/12VDC	TE Connectivity	Power/Signal Relay	Panel Mount	Momentary	SPDT					1 Form C								48 Ω							30A@15000VDC		30 A					30 A	Solder/Quick Connect				15 V	RF Rated; Switch Function SPDT also available		12 V	AC/DC
KC-18	TE Connectivity	Power/Signal Relay	Panel Mount	Momentary	SPDT					1 Form C								180 Ω							30A@15000VDC		30 A					30 A	Solder/Quick Connect				15 V	Switch Function SPDT also available		26.5 V	AC/DC

Power & Signal Relays

Power and signal relays are electromechanical switches that are used to control power circuits and signal circuits respectively. Power relays are designed to handle higher voltages and currents, typically in the range of several hundred volts and amperes. They are commonly used in industrial and automotive applications to switch on/off motors, heaters, lights, and other high-power loads. Signal relays, on the other hand, are designed to handle lower voltages and currents, typically in the range of several volts and milliamperes. They are commonly used in electronic equipment such as computers, telecommunications equipment, and consumer electronics to switch on/off signals, data, and low-power loads.

Power and signal relays come in different types and configurations depending on the specific application requirements. Some common types include electromechanical relays, reed relays, solid-state relays, and latching relays. Electromechanical relays use a mechanical switching mechanism, typically a set of contacts that move to make or break an electrical circuit. Reed relays use a set of magnetically activated contacts that are enclosed in a sealed glass tube. Solid-state relays use a semiconductor device to switch on/off the load. Latching relays use a magnetic field to hold the contacts in either the open or closed position, eliminating the need for continuous power to maintain the relay's state.

Power and signal relays play a critical role in the overall performance and reliability of electrical and electronic systems. The selection of the appropriate relay for a given application is crucial to ensure proper operation, safety, and longevity of the system. Factors to consider when selecting a relay include the load current and voltage, switching frequency, contact rating, switching speed, contact bounce, and environmental conditions such as temperature, humidity, and vibration. Proper maintenance and testing of relays are also important to ensure their continued performance and reliability over time.