Omron 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	Maximum Contact DC Power Rating (R Load)	Release Time	Insulation Resistance	Coil Power (mW)	Packing Method	Body Length/Diameter	Body Width	Coil Resistance	Sealing	Weight	Maximum AC Coil Current	No. of Terminals	Physical Dimension	End Contact Plating	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	Maximum Contact AC Rating (I Load)	Minimum Operating Temperature	DC Coil Release Voltage	Terminal Finish	Maximum DC Contact Current	Termination Type	Nominal Coil Voltage	DC Coil Operate Voltage	Manufacturer Series	Contact Resistance	Input Switching Control Type	End Contact Material	PCB Hole Count	Maximum DC Contact Voltage	Additional Features	Maximum AC Contact Voltage	JESD-609 Code	Terminal Length	Maximum DC Coil Voltage	Maximum Contact AC Power Rating (R Load)	Contact or Output Supply Type
MKS3P1-D	Omron	Power/Signal Relay																																								MKS
G6SU-2G-TRDC3	Omron	Power/Signal Relay	Surface Mount-Straight	Latched	DPDT	DC	CSA; UL	0.5A@125VAC			4.5 ms			4.5 ms		100 mW	Tape and Reel	0.583 in (14.8 mm)	7.3 in (185.42 mm)	90 Ω					0.583 x 0.287 x 0.362 in (14.8 x 7.3 x 9.2 mm)		0.362 in (9.2 mm)		2A@30VDC	85 °C (185 °F)	500 mA	33 mA			-40 °C (-40 °F)	2.25 V		2 A	Solder		2.25 V						30 V		125 V			3 V		AC/DC
G7L-1A-TUBJ-CB-AC100/120	Omron	Power/Signal Relay	Panel Mount	Momentary	SPST	AC	CE; CSA; TUV; UL	30A@220VAC			30 ms	100000 Cycle(s)		30 ms		2.5 W		2.697 in (68.5 mm)	33.5 in (850.9 mm)	5.26 kΩ			20 mA		2.697 x 1.319 x 1.85 in (68.5 x 33.5 x 47 mm)		1.85 in (47 mm)			60 °C (140 °F)	30 A		120 V		-25 °C (-13 °F)				Quick Connect			G7L						Coil Operate Voltage (AC): 75 V, Coil Release Voltage (AC): 18 V	220 V					AC
G6C-1117P-USDC3	Omron	Power/Signal Relay	Through Hole-Straight Mount	Momentary	SPST	DC	CSA; TUV; UL; VDE	10A@380VAC		1 Form A	10 ms	100000 Cycle(s)		10 ms	1 GΩ	200 mW	Tray	0.787 in (20 mm)	15 in (381 mm)	45 Ω				4	0.787 x 0.591 x 0.394 in (20 x 15 x 10 mm)		0.394 in (10 mm)		10A@125VDC	70 °C (158 °F)		67 mA			-25 °C (-13 °F)	300 mV		10 A	Solder	3 V	2.1 V		30 mΩ		Silver Alloy		125 V		380 V		0.1378 in (3.5 mm)	4.8 V		AC/DC
MK3P2-SAC50	Omron	Power/Signal Relay	Socket Mount	Momentary	3PDT	AC	CSA; DEMKO; NEMKO; SEMKO; SEV; TUV; UL	10A@250VAC			20 ms			20 ms		2.7 W		1.358 in (34.5 mm)	34.5 in (876.3 mm)	330 Ω	Dust Proof		46 mA		1.358 x 1.358 x 2.067 in (34.5 x 34.5 x 52.5 mm)		2.067 in (52.5 mm)		10A@28VDC	40 °C (104 °F)	10 A		50 V		-10 °C (14 °F)			10 A	Snap-On			MK-S					28 V	Coil Operate Voltage (AC): 40 V, Coil Release Voltage (AC): 15 V	250 V					AC/DC
G6C-2114C-US-DC6	Omron	Power/Signal Relay																																								G6C
G6C-2114C-US-P6CDC6	Omron	Power/Signal Relay																																								G6C
G6BU-1114P-US-U24VDC	Omron	Power/Signal Relay																																								G6B
G2RK-1A-24VDC	Omron	Power/Signal Relay	Through Hole-Straight Mount	Latched	SPST	DC	CSA; SEMKO; SEV; UL; VDE	3A@380VAC			15 ms	100000 Cycle(s)		5 ms		850 mW	Tray	1.142 in (29 mm)	13 in (330.2 mm)	694 Ω		17 g			1.142 x 0.512 x 1.004 in (29 x 13 x 25.5 mm)		1.004 in (25.5 mm)		3A@125VDC	70 °C (158 °F)	3 A	35 mA			-40 °C (-40 °F)	16.8 V		3 A	Solder		16.8 V						125 V		380 V			24 V		AC/DC
LY2Z-CR-AC120	Omron	Power/Signal Relay	Socket Mount	Momentary	DPDT	AC	CSA; LR; SEMKO; SEV; UL; VDE	5A@110VAC			25 ms			25 ms		1.2 W		1.1 in (27.94 mm)	21.59 in (548.386 mm)	4.43 kΩ			11 mA		1.1 x 0.85 x 1.42 in (27.94 x 21.59 x 36.06 mm)		1.42 in (36.06 mm)		5A@24VDC	70 °C (158 °F)	5 A		120 V		-40 °C (-40 °F)			5 A	Snap-On			LY					24 V	Coil Operate Voltage (AC): 96 V, Coil Release Voltage (AC): 36 V	110 V					AC/DC
MY2-0212VAC	Omron	Power/Signal Relay	Through Hole-Straight Mount	Momentary	DPDT	AC	CE; CSA; LR; SEV; UL	5A@220VAC			20 ms	500000 Cycle(s)		20 ms		1.2 W		1.102 in (28 mm)	21.5 in (546.1 mm)	46 Ω			107 mA		1.102 x 0.846 x 1.417 in (28 x 21.5 x 36 mm)		1.417 in (36 mm)		5A@24VDC	70 °C (158 °F)	5 A		12 V		-55 °C (-67 °F)			5 A	Solder			MY					24 V	Coil Operate Voltage (AC): 9.6 V, Coil Release Voltage (AC): 3.6 V	220 V					AC/DC
MKS1TIN-10AC110	Omron	Power/Signal Relay	Socket Mount	Momentary	SPST	AC	CSA; IEC; TUV; UL	15A@250VAC			20 ms	100000 Cycle(s)		20 ms				1.358 in (34.5 mm)	34.5 in (876.3 mm)	932 Ω			21 mA		1.358 x 1.358 x 1.732 in (34.5 x 34.5 x 44 mm)		1.732 in (44 mm)			60 °C (140 °F)	15 A		110 V		-25 °C (-13 °F)				Snap-On			MK-S						Coil Operate Voltage (AC): 88 V, Coil Release Voltage (AC): 33 V	250 V					AC
G6A-474P-ST40-US-DC6	Omron	Power/Signal Relay	Through Hole-Straight Mount	Momentary	4PDT	DC	CSA; UL	0.5A@125VAC	707.21 Vrms	4 Form C	7 ms	500000 Cycle(s)	60W@220VDC	5 ms	1 GΩ	400 mW		1.394 in (35.4 mm)	10.1 in (256.54 mm)	90 Ω		6 g		14	1.394 x 0.398 x 0.331 in (35.4 x 10.1 x 8.4 mm)	Gold	0.331 in (8.4 mm)	707.21 Vrms	2A@30VDC	70 °C (158 °F)	500 mA	67 mA		0.3A@125VAC	-40 °C (-40 °F)	600 mV		2 A	Solder	6 V	4.2 V	G6A	50 mΩ	Random	Silver	14	30 V		125 V		0.1181 in (3 mm)	6 V	125VA@250VAC	AC/DC
MKS1XTN-10AC220	Omron	Power/Signal Relay
G2R-1A4-H-DC6	Omron	Power/Signal Relay	Through Hole-Straight Mount	Momentary	SPST	DC	CSA; SEMKO; TUV; UL; VDE	5A@250VAC			15 ms			5 ms		360 mW		1.142 in (29 mm)	13 in (330.2 mm)	100 Ω		17 g			1.142 x 0.512 x 1.004 in (29 x 13 x 25.5 mm)		1.004 in (25.5 mm)		5A@30VDC	70 °C (158 °F)	5 A	60 mA			-40 °C (-40 °F)	900 mV		5 A	Solder		4.2 V						30 V		250 V			6 V		AC/DC
G6RN-1A-AP424VDC	Omron	Power/Signal Relay	Through Hole-Straight Mount	Momentary	SPST	DC	CSA; UL; VDE	8A@250VAC			15 ms	50000 Cycle(s)		5 ms		220 mW		1.134 in (28.8 mm)	10.5 in (266.7 mm)	2.62 kΩ					1.134 x 0.413 x 0.602 in (28.8 x 10.5 x 15.3 mm)		0.602 in (15.3 mm)		5A@30VDC	85 °C (185 °F)	8 A	9 mA			-40 °C (-40 °F)	2.4 V	Gold	5 A	Solder		16.8 V						30 V		250 V	e4		24 V		AC/DC
G6CU-2117P-US-P6CDC24	Omron	Power/Signal Relay																																								G6C
G6CK-1114P-US-12VDC	Omron	Power/Signal Relay	Through Hole-Straight Mount	Latched	SPST	DC	CSA; SEV; UL; VDE	10A@250VAC			15 ms	100000 Cycle(s)		15 ms		280 mW		0.787 in (20 mm)	15 in (381 mm)	514 Ω					0.787 x 0.591 x 0.394 in (20 x 15 x 10 mm)		0.394 in (10 mm)		10A@125VDC	70 °C (158 °F)	10 A	23 mA			-25 °C (-13 °F)	8.4 V		10 A	Solder		8.4 V						125 V		250 V			12 V		AC/DC
LY4-D-AC120	Omron	Power/Signal Relay	Socket Mount	Momentary	4PDT	AC	CSA; LR; SEMKO; SEV; UL; VDE	10A@110VAC			25 ms			25 ms		2.5 W		1.63 in (41.4 mm)	27.94 in (709.676 mm)	2.2 kΩ			19 mA		1.63 x 1.1 x 1.42 in (41.4 x 27.94 x 36.06 mm)		1.42 in (36.06 mm)		10A@24VDC	70 °C (158 °F)	10 A		120 V		-40 °C (-40 °F)			10 A	Snap-On			LY					24 V	Coil Operate Voltage (AC): 96 V, Coil Release Voltage (AC): 36 V	110 V					AC/DC
MKS2XTI-11AC120	Omron	Power/Signal Relay
G6SK-2G-Y24VDC	Omron	Power/Signal Relay
G4B-112T-US-DC24	Omron	Power/Signal Relay	Panel Mount	Momentary	SPST	DC	CSA; UL	20A@250VAC			20 ms			20 ms		1.2 W		1.42 in (36.06 mm)	32.51 in (825.754 mm)	480 Ω					1.42 x 1.28 x 1.14 in (36.06 x 32.51 x 28.95 mm)		1.14 in (28.95 mm)		20A@125VDC	55 °C (131 °F)	20 A	50 mA			-10 °C (14 °F)	2.4 V		20 A	Quick Connect		19.2 V	G4B					125 V		250 V			24 V		AC/DC
G6HU-2-100-DC24	Omron	Power/Signal Relay	Through Hole-Straight Mount	Latched	DPDT	DC	CSA; UL	0.5A@125VAC			3 ms			2 ms		150 mW		0.551 in (14 mm)	9 in (228.6 mm)	3.84 kΩ					0.551 x 0.354 x 0.207 in (14 x 9 x 5.25 mm)		0.207 in (5.25 mm)		2A@30VDC		500 mA	6 mA				18 V		2 A	Solder		18 V	G6H					30 V		125 V			24 V		AC/DC
G6CK-2117C-US-DC12	Omron	Power/Signal Relay																																								G6C
MKS3PIN-V-5AC24	Omron	Power/Signal Relay	Socket Mount	Momentary	3PDT	AC	CE; IEC; TUV; UL	10A@250VAC			20 ms	100000 Cycle(s)		20 ms		2.7 W		1.358 in (34.5 mm)	34.5 in (876.3 mm)	48.4 Ω			110 mA		1.358 x 1.358 x 2.067 in (34.5 x 34.5 x 52.5 mm)		2.067 in (52.5 mm)		10A@250VDC	60 °C (140 °F)	10 A		24 V		-25 °C (-13 °F)			10 A	Snap-On			MK-S					250 V	Coil Operate Voltage (AC): 19.2 V, Coil Release Voltage (AC): 6 V	250 V					AC/DC
G5Q-1A4-EUDC9	Omron	Power/Signal Relay																																								G5Q
G8NB-1U	Omron	Power/Signal Relay																																								G8NB
G2R-2-SNDI-6VDC	Omron	Power/Signal Relay	Socket Mount	Momentary	DPDT	DC	CSA; SEMKO; SEV; UL; VDE	4A@380VAC			15 ms	100000 Cycle(s)		5 ms		530 mW		1.142 in (29 mm)	13 in (330.2 mm)	68 Ω		20 g			1.142 x 0.512 x 1.142 in (29 x 13 x 29 mm)		1.142 in (29 mm)		4A@125VDC	70 °C (158 °F)	4 A	88 mA			-40 °C (-40 °F)	900 mV		4 A	Snap-On		4.2 V						125 V	With LED Indicator and Test Indicator	380 V			6 V		AC/DC
G6C-1117C-USP6C-3	Omron	Power/Signal Relay	Through Hole-Straight Mount	Momentary	SPST	DC	CSA; SEV; TUV; UL; VDE	10A@380VAC			15 ms	100000 Cycle(s)		15 ms		200 mW		0.787 in (20 mm)	15 in (381 mm)	45 Ω					0.787 x 0.591 x 0.394 in (20 x 15 x 10 mm)		0.394 in (10 mm)		10A@125VDC	70 °C (158 °F)	10 A	67 mA			-25 °C (-13 °F)	300 mV		10 A	Solder		2.1 V						125 V	Socket Mountable	380 V			3 V		AC/DC
LY3L4-DC48	Omron	Power/Signal Relay	Panel Mount	Momentary	3PDT	DC	CE; CSA; TUV; UL	10A@110VAC			25 ms			25 ms		1.4 W		1.24 in (31.49 mm)	27.94 in (709.676 mm)	1.7 kΩ					1.24 x 1.1 x 1.44 in (31.49 x 27.94 x 36.57 mm)		1.44 in (36.57 mm)		10A@24VDC		10 A	28 mA				4.8 V		10 A	Solder		38.4 V	LY					24 V		110 V			48 V		AC/DC
G6SK-2-Y4.5VDC	Omron	Power/Signal Relay
G4B-112TP-US-AC120	Omron	Power/Signal Relay	Through Hole-Straight Mount	Momentary	SPST	AC	CSA; UL	20A@250VAC			20 ms			20 ms		1.3 W		1.42 in (36.06 mm)	32.51 in (825.754 mm)				13 mA		1.42 x 1.28 x 1.14 in (36.06 x 32.51 x 28.95 mm)		1.14 in (28.95 mm)		20A@125VDC	55 °C (131 °F)	20 A		120 V		-10 °C (14 °F)			20 A	Solder			G4B					125 V	Coil Operate Voltage (AC): 96 V, Coil Release Voltage (AC): 36 V, Quick Connect Terminals also available	250 V					AC/DC
MKS2PN-V12VAC	Omron	Power/Signal Relay	Socket Mount	Momentary	DPDT	AC	CE; IEC; TUV; UL	10A@250VAC			20 ms	100000 Cycle(s)		20 ms		2.7 W		1.358 in (34.5 mm)	34.5 in (876.3 mm)	13.7 Ω			221 mA		1.358 x 1.358 x 2.067 in (34.5 x 34.5 x 52.5 mm)		2.067 in (52.5 mm)		10A@30VDC	60 °C (140 °F)	10 A		12 V		-40 °C (-40 °F)			10 A	Snap-On			MK-S					30 V	Coil Operate Voltage (AC): 9.6 V, Coil Release Voltage (AC): 3.6 V	250 V					AC/DC
MKS2PINDC6	Omron	Power/Signal Relay	Socket Mount	Momentary	DPDT	DC	CE; IEC; TUV; UL	10A@250VAC			30 ms	100000 Cycle(s)		20 ms		1.4 W		1.358 in (34.5 mm)	34.5 in (876.3 mm)	26.7 Ω					1.358 x 1.358 x 2.067 in (34.5 x 34.5 x 52.5 mm)		2.067 in (52.5 mm)		10A@250VDC	60 °C (140 °F)	10 A	224 mA			-25 °C (-13 °F)	900 mV		10 A	Snap-On		4.8 V						250 V		250 V			6 V		AC/DC
G6J-2P-Y4.5VDC	Omron	Power/Signal Relay	Through Hole-Straight Mount	Momentary	DPDT	DC	CSA; UL	0.3A@125VAC			3 ms	100000 Cycle(s)		3 ms		140 mW		0.417 in (10.6 mm)	5.7 in (144.78 mm)	137.9 Ω					0.417 x 0.224 x 0.354 in (10.6 x 5.7 x 9 mm)		0.354 in (9 mm)		1A@30VDC	85 °C (185 °F)	300 mA	33 mA			-40 °C (-40 °F)	450 mV		1 A	Solder		3.375 V						30 V		125 V			4.5 V		AC/DC
G2A-434AY-N124VDC	Omron	Power/Signal Relay	Panel Mount	Momentary	4PDT	DC		0.7A@250VAC			15 ms	5000000 Cycle(s)		15 ms		1.1 W		1.161 in (29.5 mm)	22.5 in (571.5 mm)	530 Ω	Hermetically Sealed				1.161 x 0.886 x 1.673 in (29.5 x 22.5 x 42.5 mm)		1.673 in (42.5 mm)		2A@125VDC	40 °C (104 °F)	700 mA	45 mA			-10 °C (14 °F)	2.4 V		2 A	Solder		19.2 V						125 V		250 V			24 V		AC/DC
G2A-4321P100VDC	Omron	Power/Signal Relay																																								G2A
G2R-1AZ4DC5	Omron	Power/Signal Relay							1 kVrms													17 g						5 kVrms
G6BK-1114P-US-P6BDC12	Omron	Power/Signal Relay
MY4ZN-CR-AC110/120(S)	Omron	Power/Signal Relay	Socket Mount	Momentary	4PDT	AC	CE; CSA; IMQ; LR; SEV; UL; VDE	5A@250VAC			20 ms	100000 Cycle(s)		20 ms		1.1 W		1.102 in (28 mm)	21.5 in (546.1 mm)	4.43 kΩ			9 mA		1.102 x 0.846 x 1.417 in (28 x 21.5 x 36 mm)		1.417 in (36 mm)		5A@30VDC	70 °C (158 °F)	5 A		120 V		-55 °C (-67 °F)			5 A	Snap-On			MY					30 V	Coil Operate Voltage (AC): 96 V, Coil Release Voltage (AC): 36 V, with LED Indicator	250 V					AC/DC
G4W-1112T-US-TV5-24VDC	Omron	Power/Signal Relay	Panel Mount	Momentary	SPST	DC	CSA; SEMKO; UL; VDE	15A@250VAC			23 ms	100000 Cycle(s)		8 ms		800 mW		1.496 in (38 mm)	20 in (508 mm)	720 Ω					1.496 x 0.787 x 1.22 in (38 x 20 x 31 mm)		1.22 in (31 mm)		15A@125VDC	55 °C (131 °F)	15 A	33 mA			-25 °C (-13 °F)	2.4 V		15 A	Quick Connect		19.2 V	G4W					125 V		250 V			24 V		AC/DC
MM2K,12VDC	Omron	Power/Signal Relay	Panel Mount	Latched	DPDT	DC		10A@250VAC			30 ms	500000 Cycle(s)		30 ms		2.1 W		2.303 in (58.5 mm)	44 in (1117.6 mm)	68 Ω					2.303 x 1.732 x 3.386 in (58.5 x 44 x 86 mm)		3.386 in (86 mm)		10A@250VDC	55 °C (131 °F)	10 A	176 mA			-10 °C (14 °F)			10 A	Solder		9.6 V						250 V		250 V			12 V		AC/DC
G6RN-1-DC48	Omron	Power/Signal Relay	Through Hole-Straight Mount	Momentary	SPDT	DC	CSA; IEC; UL; VDE	8A@250VAC			6 ms	100000 Cycle(s)		3 ms		220 mW		1.122 in (28.5 mm)	10 in (254 mm)	9.21 kΩ					1.122 x 0.394 x 0.591 in (28.5 x 10 x 15 mm)		0.591 in (15 mm)		5A@30VDC	85 °C (185 °F)	8 A	5 mA			-40 °C (-40 °F)	4.8 V		5 A	Solder		33.6 V						30 V		250 V			48 V		AC/DC
G2R-1-SD-DC48(S)	Omron	Power/Signal Relay	Socket Mount	Momentary	SPDT	DC	CE; CSA; IEC; LR; UL; VDE	10A@440VAC			15 ms	100000 Cycle(s)		5 ms		530 mW		1.142 in (29 mm)	13 in (330.2 mm)	4.22 kΩ		21 g			1.142 x 0.512 x 1.398 in (29 x 13 x 35.5 mm)		1.398 in (35.5 mm)		10A@125VDC	70 °C (158 °F)	10 A	11 mA			-40 °C (-40 °F)	7.2 V		10 A	Snap-On		33.6 V						125 V	With Diode	440 V			48 V		AC/DC
G6KU-2P-Y-TR-DC5	Omron	Power/Signal Relay	Through Hole-Straight Mount	Latched	DPDT	DC	BSI; CSA; UL	0.3A@125VAC	750 Vrms	2 Form C	3 ms	100000 Cycle(s)		3 ms	1 GΩ	100 mW	Tape and Reel, 13 in	0.394 in (10 mm)	6.5 in (165.1 mm)	237 Ω	Sealed Type	700 mg		8	0.394 x 0.256 x 0.197 in (10 x 6.5 x 5 mm)		0.197 in (5 mm)	1.5 kVrms	1A@30VDC	70 °C (158 °F)	300 mA	21 mA			-40 °C (-40 °F)	3.75 V	Tin	1 A	Solder	5 V	3.75 V		100 mΩ	Random	Silver	8	30 V		125 V	e3	0.1378 in (3.5 mm)	7.5 V		AC/DC
MK3P-SAC230	Omron	Power/Signal Relay	Socket Mount	Momentary	3PDT	AC	CSA; DEMKO; NEMKO; SEMKO; SEV; TUV; UL	10A@250VAC			20 ms			20 ms		2.7 W		1.358 in (34.5 mm)	34.5 in (876.3 mm)	6.17 kΩ	Dust Proof		12 mA		1.358 x 1.358 x 2.067 in (34.5 x 34.5 x 52.5 mm)		2.067 in (52.5 mm)		10A@28VDC	40 °C (104 °F)	10 A		230 V		-10 °C (14 °F)			10 A	Snap-On			MK-S					28 V	Coil Operate Voltage (AC): 184 V, Coil Release Voltage (AC): 69 V	250 V					AC/DC
G7L-1A-BUBJ50VAC	Omron	Power/Signal Relay	Panel Mount	Momentary	SPST	AC	CSA; TUV; UL	30A@250VAC			30 ms	100000 Cycle(s)		30 ms		1.7 W		2.067 in (52.5 mm)	34.5 in (876.3 mm)				34 mA		2.067 x 1.358 x 2.165 in (52.5 x 34.5 x 55 mm)		2.165 in (55 mm)			60 °C (140 °F)	30 A		50 V		-25 °C (-13 °F)				Screw			G7L						Coil Operate Voltage (AC): 37.5 V, Coil Release Voltage (AC): 7.5 V	250 V					AC
G7J-4A-P-DC110	Omron	Power/Signal Relay	Through Hole-Straight Mount	Momentary	4PST	DC	CE; CSA; UL	25A@250VAC			50 ms	100000 Cycle(s)		50 ms		2 W		2.106 in (53.5 mm)	33.5 in (850.9 mm)	6.05 kΩ					2.106 x 1.319 x 2.008 in (53.5 x 33.5 x 51 mm)		2.008 in (51 mm)		25A@125VDC	60 °C (140 °F)	25 A	18 mA			-25 °C (-13 °F)	11 V		25 A	Solder		82.5 V						125 V		250 V			110 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.