Industrial Relays: PLCs

High-Quality Relays for PLC Automation Systems

Relays for PLCs (Programmable Logic Controllers) play a critical role in industrial automation by providing safe, reliable switching between control signals and high-power loads. Our selection of PLC relays is designed to improve system performance, extend equipment life, and ensure stable operation in demanding environments.

Relay functionality in PLC’s

PLC relays are interface devices that allow low-voltage PLC output signals to control higher-voltage or higher-current equipment. They protect sensitive PLC hardware while enabling precise control of motors, solenoids, lighting, pumps, and other electrical loads.

Typical applications include:

• Industrial automation and control panels
• Manufacturing equipment
• Building automation and HVAC
• Machine safety systems
• Robotics and motion control

Relay functionalities:

• Isolation
• Switching AC/DC loads
• Protection of sensitive components form surge

Benefits of Using Relays in PLCs

Integrating relays into your PLC system provides several advantages:

• Protects PLC outputs from overload or voltage spikes
• Allows control of high-power equipment
• Reduces wear on PLC hardware
• Improves overall system safety and reliability

Benefits of using FCL Components Relays for PLCs

• Over 110 years of experience designing and manufacturing relays
• Global support
• High quality

Comparison Tables

Power Relays (1)

Series	JS	FTR-MY	FTR-LY	NY
Contact Configuration	1 Form A, 1 Form C	1 Form A	1 Form A, 1 Form C	1 Form A
Contact rating (resistive)	8A, 250VAC/24VDC	5A, 250VAC/30VDC	6A, 250VAC/ 24VDC	5A, 250VAC/30VDC
Coil voltage	5-60VDC	4.5-24VDC	5-60VDC	4.5-24VDC
Max. carrying current	10A	5A	6A	5A
Max. switching voltage	400VAC/300VDC	277VAC/125VDC	250VAC	270VAC/125VDC
Max. switching power	2,000VA/192W	1,250VA/150W	1,500VA/144W	1,250VA/150W
Min. switching load (reference value)	100mA, 5VDC (gold flash) 10mA, 5VDC (gold plate)	1mA, 5VDC	Y, E: 100mA, 5VDC V (gold plate):10mA, 5VDC	1mA, 5VDC
Power consumption	220 to 290mW	150mW 110mW	170 to 217mW	120mW
Insulation resistance	Min. 1,000MΩ	Min. 1,000MΩ	Min. 1,000MΩ	Min. 1,000MΩ
Clearance/creepage	8mm / 8mm	5.15mm / 5.89mm	8mm / 8mm	3mm / 38mm
Dielectric strength (coil to contacts)	5,000VAC	3,000VAC	4,000VAC, 10mA detection current	3,000VAC
Surge voltage (coil to contacts)	10,000	5,080VAC	6,000V	5,080VAC
Operating temperature	-40ºC - +85ºC	-40ºC - +90ºC	-40ºC - +85ºC	-40ºC - +90ºC
Operation Time	Max. 10ms	Max. 10ms	Max. 8ms	Max. 10ms
Release Time	Max. 5ms	Max. 5ms	Max. 4ms	Max. 5ms
Mechanical life	Min. 20x106	Min. 20x106	Min. 10x106	Min. 20x106
Sealing	Plastic sealed, RTIII	Plastic sealed, RTIII	Plastic sealed, RTIII	Plastic sealed, RTIII
Dimensions (W x L x H)	10.0 x 29.0 x 12.5 mm	5.0 x 20.0 x 12.0 mm	5.0 x 28.0 x 15.0 mm (straight) 15.0 x 28.0 x 5.0 mm (right angle)	5.0 x 20.1 x 17.5 mm
Other	-	Comply with IEC/EN61010-1, IEC/EN61010-2-201 (277VAC), ANSI /ISA12.12.01	Comply with IEC/EN61010-1, IEC/EN61010-2-201 (277VAC)	Comply with ANSI/ISA12.12.01

Power Relays (2)

Series	FTR-K1-HA (20A type)	FTR-K3	FTR-F3 (5A type)
Contact Configuration	1 Form A	1 Form A	1 Form A, 1 Form C
Contact rating (resistive)	20A, 250VAC	20A, 250VAC	5A, 250VAC/ 30VDC
Coil voltage	5-18VDC	5-48VDC	2-24VDC
Max. carrying current	24A	25A	5A
Max. switching voltage	440VAC	250VAC	277VAC/30VDC
Max. switching power	5,000VA	6,250VA	1,250VA/150W
Min. switching load (reference value)	100mA, 5VDC	100mA, 5VDC	10mA, 5VDC
Power consumption	400mW	780mW	200mW (1 Form A) 360mW (1 Form C
Insulation resistance	Min. 1,000MΩ	Min. 1,000MΩ	Min. 1,000MΩ
Clearance/creepage	10mm / 10mm	6.4mm / 9.5mm	6mm / 6mm(1 Form A) 7mm / 7mm(1 Form C)
Dielectric strength (coil to contacts)	5,000VAC	5,000VAC	4,000VAC
Surge voltage (coil to contacts)	10,000	8,50VAC	10,000V
Operating temperature	-40ºC - +85ºC	-40ºC - +60ºC	-40ºC - +70ºC
Operation Time	Max. 15ms	Max. 20ms	Max. 10ms
Release Time	Max. 5ms	Max. 10ms	Max. 10ms
Mechanical life	Min. 1x106	Min. 2x106	Min. 5x106(1 Form A) Min. 2x106(1 Form C)
Mechanical life (resistive)	Min. 30x103	Min. 100x103	Min. 10x103(1 Form A) Min. 50x103(1 Form C)
Sealing	RTII	RTII	Plastic, RTIII
Dimensions (W x L x H)	12.7 x 29.0 x 15.7 mm	15.7 x 30.1 x 23.3 mm	7.0 x 20.3 x 15.0 mm(1 Form A) 7.0 x 23.4 x 15.0 mm(1 Form C）

Signal Relays

Series	FTR-B3/B4	FTR-C1	FTR-C2
Contact Configuration	2 Form C	2 Form C	2 Form C
Contact rating	1A, 30VDC/ 0.3A, 125VAC	0.3A, 125VAC/1A, 30VDC	0.3A, 125VAC/1A, 30VDC
Coil voltage	1.5-24VDC	3-24VDC	3-24VDC
Max. carrying current	2A	2A	2A
Max. switching voltage	250VAC/220VDC	250VAC/220VDC	250VAC/220VDC
Max. switching power	62.5VA/30W	62.5VA/30W	62.5VA/30W
Min. switching load (refernce value)	0.01mA, 10mVDC	0.01mA, 10mVDC	0.01mA, 10mVDC
Power consumption	FTR-B3: 140mW to 230mW (non-latching) A, 100mW to 120mW (altching) B FTR-B4: 140mW to 230mW (non-latching) A, 100mW to 130mW (latching) B	280mW to 300mW (non-latching) 140mW to 180mW (latching)	300mW (non-latching) 150mW (latching)
Insulation resistance	Min. 1,000MΩ	Min. 1,000MΩ	Min. 1,000MΩ
Dielectric strength (coil to contacts)	1,500VAC	3,000VAC	2,000VAC
Surge voltage (coil to contacts)	2,500V	5,000V	2,500V
Operating temperature	-40ºC - +85ºC	-40ºC - +85ºC	-40ºC - +85ºC
Operation Time	Max. 3ms	Max. 6ms	Max. 15ms
Release Time	Max. 3ms	Max. 6ms	Max. 15ms
Mechanical life	50x106()A, 20x106()B	Min. 10x106	Min. 10x106
Sealing	Plastic sealed, RTIII	Plastic sealed, RTIII	Plastic sealed, RTIII
Dimensions (W x L x H)	FTR-B3: 7.2 x 10.6 x 5.25 mm FTR-B4: 5.7 x 10.6 x 9.7 mm (SMT)	7.4 x 14.9 x 9.4mm (SMT)	9.85 x 20.05 x 11.7 mm (SMT)

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