Omron Power & Signal Relays 2,400+

Reset All

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	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	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
G6B-2114P-FD-US24VDC	Omron	Power/Signal Relay																																						G6B
G7L-2A-PUB100VDC	Omron	Power/Signal Relay	Surface Mount-Straight	Momentary	DPST	DC	CSA; TUV; UL	20A@250VAC			30 ms	100000 Cycle(s)		30 ms		1.9 W		2.067 in (52.5 mm)	33.5 in (850.9 mm)	5.26 kΩ					2.067 x 1.319 x 1.614 in (52.5 x 33.5 x 41 mm)	1.614 in (41 mm)			60 °C (140 °F)	20 A	19 mA		-25 °C (-13 °F)	15 V			Solder		75 V								250 V			100 V		AC
G2R-1-E-48VDC	Omron	Power/Signal Relay	Through Hole-Straight Mount	Momentary	SPDT	DC	CSA; SEMKO; SEV; UL; VDE	8A@380VAC			15 ms	100000 Cycle(s)		5 ms		530 mW	Tray	1.142 in (29 mm)	13 in (330.2 mm)	4.17 kΩ		17 g			1.142 x 0.512 x 1.004 in (29 x 13 x 25.5 mm)	1.004 in (25.5 mm)		8A@125VDC	70 °C (158 °F)	8 A	12 mA		-40 °C (-40 °F)	7.2 V		8 A	Solder		33.6 V						125 V		380 V			48 V		AC/DC
LY4I4N-AC6	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)	5 Ω			390 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		6 V	-40 °C (-40 °F)			10 A	Snap-On			LY					24 V	Coil Operate Voltage (AC): 4.8 V, Coil Release Voltage (AC): 1.8 V	110 V					AC/DC
MK3PND-5-S-DC110	Omron	Power/Signal Relay	Socket Mount	Momentary	3PDT	DC	CE; CSA; DEMKO; SEV; TUV; UL	10A@250VAC			30 ms	100000 Cycle(s)		20 ms		1.5 W		1.358 in (34.5 mm)	34.5 in (876.3 mm)	7.3 kΩ					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	40 °C (104 °F)	10 A	15 mA		-10 °C (14 °F)	16.5 V		10 A	Snap-On		88 V						250 V	With LED Indicator and Diode	250 V			110 V		AC/DC
G6C-2117P-USDC5V	Omron
G6EK-134P-US-U	Omron	Power/Signal Relay																																						G6E
MJN1C-IN-DC12	Omron	Power/Signal Relay	Panel Mount	Momentary	SPDT	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
MKS3PN220VAC	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)	3.55 kΩ			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@30VDC	60 °C (140 °F)	10 A		220 V	-40 °C (-40 °F)			10 A	Snap-On			MK-S					30 V	Coil Operate Voltage (AC): 176 V, Coil Release Voltage (AC): 66 V	250 V					AC/DC
G2RL-1A4-CFDC5	Omron	Power/Signal Relay	Through Hole-Straight Mount	Momentary	SPST	DC	CSA; UL; VDE	12A@440VAC			7 ms			2 ms		400 mW	Tube	1.142 in (29 mm)	12.7 in (322.58 mm)	62.5 Ω		12 g			1.142 x 0.5 x 0.618 in (29 x 12.7 x 15.7 mm)	0.618 in (15.7 mm)		12A@300VDC	85 °C (185 °F)	12 A	80 mA		-40 °C (-40 °F)	500 mV		12 A	Solder		3.5 V						300 V	Low Profile	440 V			5 V		AC/DC
G6CU-2114P-US-P6CDC6	Omron	Power/Signal Relay																																						G6C
G6C-2117P-US-P6CDC3	Omron	Power/Signal Relay																																						G6C
G6SK-2-TRDC6	Omron	Power/Signal Relay	Through Hole-Straight Mount	Latched	DPDT	DC	CSA; UL	0.5A@125VAC			4.5 ms			4.5 ms		200 mW	Tape and Reel	0.583 in (14.8 mm)	7.3 in (185.42 mm)	180 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)	4.5 V		2 A	Solder		4.5 V						30 V		125 V			6 V		AC/DC
LY2ZN-CR-AC240	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)	18.79 kΩ			5 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		240 V	-40 °C (-40 °F)			5 A	Snap-On			LY					24 V	Coil Operate Voltage (AC): 192 V, Coil Release Voltage (AC); 72 V	110 V					AC/DC
G2RV-SR700-APAC230	Omron	Power/Signal Relay																				30 g
MKS2PIN1-2AC24	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)	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	-40 °C (-40 °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
LY1DC12	Omron	Power/Signal Relay	Panel Mount	Momentary	SPDT	DC	CE; CSA; TUV; UL	15A@110VAC			25 ms	200000 Cycle(s)		25 ms		900 mW		1.1 in (27.94 mm)	21.59 in (548.386 mm)	160 Ω					1.1 x 0.85 x 1.42 in (27.94 x 21.59 x 36.06 mm)	1.42 in (36.06 mm)		15A@24VDC	55 °C (131 °F)	15 A	75 mA		-25 °C (-13 °F)	1.2 V		15 A	Solder		9.6 V						24 V		110 V			12 V		AC/DC
MKS2TI-11DC110	Omron	Power/Signal Relay
G6E-134P-US	Omron	Power/Signal Relay																																						G6E
G4B-112T-C-US-DC6	Omron	Power/Signal Relay	Panel Mount	Momentary	SPDT	DC	CSA; UL	20A@250VAC			20 ms			20 ms		1.2 W		1.42 in (36.06 mm)	32.51 in (825.754 mm)	30 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	200 mA		-10 °C (14 °F)	600 mV		20 A	Quick Connect		4.8 V	G4B					125 V		250 V			6 V		AC/DC
MKS3PIN-D110VDC	Omron	Power/Signal Relay	Socket Mount	Momentary	3PDT	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)	8.96 kΩ					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 mA		-40 °C (-40 °F)	16.5 V		10 A	Snap-On		88 V						30 V		250 V			110 V		AC/DC
G7T-1122S12VDC	Omron	Power/Signal Relay	Panel Mount	Momentary	SPST	DC	CSA; UL	1A@250VAC			15 ms	50000 Cycle(s)		15 ms		500 mW		1.319 in (33.5 mm)	10 in (254 mm)	290 Ω					1.319 x 0.394 x 1.26 in (33.5 x 10 x 32 mm)	1.26 in (32 mm)		1A@125VDC	70 °C (158 °F)	1 A	42 mA		-40 °C (-40 °F)	1.2 V		1 A	Quick Connect		9.6 V						125 V		250 V			12 V		AC/DC
G5NB-1A4-E-SPDC24	Omron	Power/Signal Relay
G2R-24-DC110	Omron	Power/Signal Relay	Through Hole-Straight Mount	Momentary	DPDT	DC	CSA; SEMKO; TUV; UL; VDE	5A@250VAC			15 ms			5 ms		530 mW		1.142 in (29 mm)	13 in (330.2 mm)	22.9 kΩ		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	5 mA		-40 °C (-40 °F)	16.5 V		5 A	Solder		77 V						30 V		250 V			110 V		AC/DC
G2R-24DC100	Omron	Power/Signal Relay	Through Hole-Straight Mount	Momentary	DPDT	DC	CSA; SEMKO; TUV; UL; VDE	5A@250VAC	1 kVrms	1 Form C	15 ms	100000 Cycle(s)		5 ms	1 GΩ	530 mW	Tray	1.142 in (29 mm)	13 in (330.2 mm)	18.86 kΩ		17 g		6	1.142 x 0.512 x 1.004 in (29 x 13 x 25.5 mm)	1.004 in (25.5 mm)	5 kVrms	5A@30VDC	70 °C (158 °F)	5 A	5 mA		-40 °C (-40 °F)	15 V		5 A	Solder	100 V	70 V		50 mΩ	Random	Silver Alloy		30 V		250 V		0.1575 in (4 mm)	100 V		AC/DC
MY4ZH-US-110/120VAC	Omron	Power/Signal Relay	Socket Mount	Momentary	4PDT	AC	CSA; UL	3A@125VAC			20 ms	50000 Cycle(s)		20 ms		1.1 W		1.122 in (28.5 mm)	22 in (558.8 mm)	4.43 kΩ	Hermetically Sealed		11 mA		1.122 x 0.866 x 1.378 in (28.5 x 22 x 35 mm)	1.378 in (35 mm)		3A@125VDC	60 °C (140 °F)	3 A		120 V	-25 °C (-13 °F)			3 A	Snap-On			MY4H					125 V	Coil Operate Voltage (AC): 96 V, Coil Release Voltage (AC): 36 V	125 V					AC/DC
G2R-1-SNI48VDC(S)	Omron	Power/Signal Relay	Socket Mount	Momentary	SPDT	DC	CE; CSA; IEC; LR; UL; VDE	10A@250VAC		1 Form C	15 ms	100000 Cycle(s)	300W@30VDC	5 ms	1 GΩ	530 mW		1.142 in (29 mm)	13 in (330.2 mm)	4.22 kΩ		21 g		5	1.142 x 0.512 x 1.398 in (29 x 13 x 35.5 mm)	1.398 in (35.5 mm)		10A@30VDC	70 °C (158 °F)	10 A	11 mA		-40 °C (-40 °F)	7.2 V		10 A	Snap-On	48 V	33.6 V		100 mΩ	Random			125 V	LED Indicator with Test Button	440 V		0.1969 in (5.001 mm)	52.8 V	2500VA@250VAC	AC/DC
LY1F-AC220	Omron	Power/Signal Relay	Panel Mount	Momentary	SPDT	AC	CSA; LR; SEMKO; SEV; UL; VDE	15A@110VAC			25 ms			25 ms		1.2 W		1.73 in (43.94 mm)	22.6 in (574.04 mm)	12.59 kΩ			7 mA		1.73 x 0.89 x 1.4 in (43.94 x 22.6 x 35.56 mm)	1.4 in (35.56 mm)		15A@24VDC	70 °C (158 °F)	15 A		220 V	-40 °C (-40 °F)			15 A	Solder			LY					24 V	Coil Operate Voltage (AC): 176 V, Coil Release Voltage (AC): 66 V	110 V					AC/DC
LY2S-AC120	Omron	Power/Signal Relay	Panel Mount	Momentary	DPDT	AC	CSA; LR; SEMKO; SEV; UL; VDE	10A@110VAC			25 ms			25 ms		1.2 W		1.73 in (43.94 mm)	22.6 in (574.04 mm)	4.43 kΩ			11 mA		1.73 x 0.89 x 1.4 in (43.94 x 22.6 x 35.56 mm)	1.4 in (35.56 mm)		10A@24VDC	70 °C (158 °F)	10 A		120 V	-40 °C (-40 °F)			10 A	Solder			LY					24 V	Coil Operate Voltage (AC): 96 V, Coil Release Voltage (AC): 36 V	110 V					AC/DC
G6K-2P-Y-TR24VDC	Omron	Power/Signal Relay	Through Hole-Straight Mount	Momentary	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)	5.22 kΩ	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	5 mA		-40 °C (-40 °F)	2.4 V	Tin	1 A	Solder	24 V	19.2 V		100 mΩ	Random	Silver	8	30 V		125 V	e3	0.1378 in (3.5 mm)	36 V		AC/DC
G6SU-2G-Y-TRDC5	Omron	Power/Signal Relay
K8AB-AS3115VAC	Omron	Power/Signal Relay																																						K8AB-AS
G2R-1A-H-AC100/110	Omron	Power/Signal Relay																				17 g
G6K-2F5VDC-TR	Omron	Power/Signal Relay	Surface Mount-Straight	Momentary	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 0.205 in (10 x 6.5 x 5.2 mm)	0.205 in (5.2 mm)	1.5 kVrms	1A@30VDC	70 °C (158 °F)	300 mA	21 mA		-40 °C (-40 °F)	500 mV	Tin	1 A	Solder	5 V	4 V		100 mΩ	Random	Silver		30 V		125 V	e3		7.5 V		AC/DC
G2RV-SL70124VAC/DC	Omron	Power/Signal Relay	DIN Rail Mount	Momentary	SPDT	AC/DC	CE; CUL; LR; UL; VDE	6A@400VAC			20 ms	100000 Cycle(s)		40 ms		300 mW		4.319 in (109.7 mm)	6.2 in (157.48 mm)	1.84615 kΩ	Moisture Proof	35 g	23 mA		4.319 x 0.244 x 4.024 in (109.7 x 6.2 x 102.2 mm)	4.024 in (102.2 mm)		6A@125VDC	55 °C (131 °F)	6 A	13 mA	24 V	-40 °C (-40 °F)	2.4 V		6 A	Screw		19.2 V						125 V	Coil Operate Voltage (AC): 19.2 V, Coil Release Voltage (AC): 2.4 V, Coil Power (AC): 0.5 VA	400 V			24 V		AC/DC
G7J-3A1B-B12VDC	Omron	Power/Signal Relay																																						G7J
G6JU-2FL-Y-TR12VDC	Omron	Power/Signal Relay	Surface Mount-Straight	Latched	DPDT	DC	CSA; UL	0.3A@125VAC			3 ms	100000 Cycle(s)		3 ms		100 mW	Tape and Reel	0.417 in (10.6 mm)	5.7 in (144.78 mm)	1.3292 kΩ					0.417 x 0.224 x 0.394 in (10.6 x 5.7 x 10 mm)	0.394 in (10 mm)		1A@30VDC	85 °C (185 °F)	300 mA	9 mA		-40 °C (-40 °F)	9 V		1 A	Solder		9 V						30 V		125 V			12 V		AC/DC
G6A-274P-ST40-US3VDC	Omron	Power/Signal Relay
MKS2PN-V-2	Omron	Power/Signal Relay																																						MKS
G6CU-1117C-US-12VDC	Omron	Power/Signal Relay	Socket Mount	Latched	SPST	DC	CSA; SEV; UL; VDE	10A@250VAC			15 ms	100000 Cycle(s)		15 ms		200 mW		0.787 in (20 mm)	15 in (381 mm)	720 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	17 mA		-25 °C (-13 °F)	8.4 V		10 A	Snap-On		8.4 V						125 V		250 V			12 V		AC/DC
G6CU-2114C-USP6C-5	Omron	Power/Signal Relay	Through Hole-Straight Mount	Latched	DPST	DC	CSA; SEV; TUV; UL; VDE	8A@250VAC			15 ms	100000 Cycle(s)		15 ms		200 mW		0.787 in (20 mm)	15 in (381 mm)	125 Ω					0.787 x 0.591 x 0.394 in (20 x 15 x 10 mm)	0.394 in (10 mm)		8A@125VDC	70 °C (158 °F)	8 A	40 mA		-25 °C (-13 °F)	500 mV		8 A	Solder		3.5 V						125 V	Socket Mountable	250 V			5 V		AC/DC
G2R-1A-T-240VAC	Omron	Power/Signal Relay	Panel Mount	Momentary	SPST	AC	CSA; EN; SEV; TUV; UL	10A@380VAC			15 ms	100000 Cycle(s)		10 ms		900 mW		1.772 in (45 mm)	14 in (355.6 mm)	30 kΩ		17 g	5 mA		1.772 x 0.551 x 1.201 in (45 x 14 x 30.5 mm)	1.201 in (30.5 mm)		10A@125VDC	70 °C (158 °F)	10 A		240 V	-40 °C (-40 °F)			10 A	Quick Connect								125 V	Coil Operate Voltage (AC): 192 V, Coil Release Voltage (AC): 72 V	380 V					AC/DC
LY4-0-AC100/110	Omron	Power/Signal Relay	Through Hole-Straight Mount	Momentary	4PDT	AC	CE; CSA; TUV; UL	10A@110VAC			25 ms			25 ms		1.2 W		1.1 in (27.94 mm)	21.59 in (548.386 mm)				26 mA		1.1 x 0.85 x 1.4 in (27.94 x 21.59 x 35.56 mm)	1.4 in (35.56 mm)		10A@24VDC	40 °C (104 °F)	10 A		110 V	-25 °C (-13 °F)			10 A	Solder			LY					24 V	Coil Operate Voltage (AC): 88 V, Coil Release Voltage (AC): 33 V	110 V					AC/DC
MY2IN1AC24(S)	Omron	Power/Signal Relay																																						MY
61F-AN220VAC	Omron	Power/Signal Relay	DIN Rail Mount	Momentary		AC		3A@250VAC			25 ms	100000 Cycle(s)		30 ms		3 W		2.362 in (60 mm)	50 in (1270 mm)				14 mA		2.362 x 1.969 x 3.937 in (60 x 50 x 100 mm)	3.937 in (100 mm)			55 °C (131 °F)	3 A		220 V	-10 °C (14 °F)				Screw			61F-AN						Coil Operate Voltage (AC): 187 V	250 V					AC
G7L-2A-TUB6VDC	Omron	Power/Signal Relay	Panel Mount	Momentary	DPST	DC	CSA; TUV; UL	25A@250VAC			30 ms	100000 Cycle(s)		30 ms		1.9 W		2.067 in (52.5 mm)	33.5 in (850.9 mm)	18.9 Ω					2.067 x 1.319 x 2.087 in (52.5 x 33.5 x 53 mm)	2.087 in (53 mm)			60 °C (140 °F)	25 A	317 mA		-25 °C (-13 °F)	900 mV			Quick Connect		4.5 V								250 V			6 V		AC
G7L-2A-PJ12VAC	Omron	Power/Signal Relay	Surface Mount-Straight	Momentary	DPST	AC	CSA; TUV; UL	20A@250VAC			30 ms	100000 Cycle(s)		30 ms		1.7 W		2.067 in (52.5 mm)	33.5 in (850.9 mm)				142 mA		2.067 x 1.319 x 1.614 in (52.5 x 33.5 x 41 mm)	1.614 in (41 mm)			60 °C (140 °F)	20 A		12 V	-25 °C (-13 °F)				Solder			G7L						Coil Operate Voltage (AC): 9 V, Coil Release Voltage (AC): 1.8 V	250 V					AC
LY2Z-CR-DC110	Omron	Power/Signal Relay	Socket Mount	Momentary	DPDT	DC	CSA; LR; SEMKO; SEV; UL; VDE	5A@110VAC			25 ms			25 ms		900 mW		1.1 in (27.94 mm)	21.59 in (548.386 mm)	11 kΩ					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	10 mA		-40 °C (-40 °F)	11 V		5 A	Snap-On		88 V						24 V		110 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.