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Control Relays
Ensure consistent performance and reliable operation in your electrical systems with our wide selection of control relays. Designed to provide safe and accurate switching, these essential components are used in motor control, automation, HVAC systems, and industrial machinery. Our offering includes general-purpose relays, timing relays, solid-state relays, and safety relays, available in multiple coil voltages and contact configurations to match your application. Built with durable materials and trusted designs, these relays deliver dependable performance while helping to protect equipment and extend system life. Whether you’re managing simple control circuits or complex automation systems, our control relays offer the reliability, flexibility, and efficiency professionals count on. With products from leading brands, it’s easy to find the right relay for your project.
Filters 566 Results
566 items
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The Dwyer - SSRL240DC25 is a High Reliability Solid State Relay featuring 1-Phase, 24 Vac to 280 Vac Line Voltage, 25 A, 3 Vdc to 32 Vdc O/P, DC Control Signal, and Screw Mount. Part of the SSRL Series. Sold individually.
Save 18%$54.22
$44.45
Should ship between 05 Dec and 12 Dec
Subject to factory lead times
The Dwyer - CH-50 is a Terminal Block for NB2 Type Connection Head featuring 4 Terminals, Ceramic Block with Nickel Plated Brass Terminals, 14 AWG, and White. Part of the CH Series. Sold individually.
$15.21
Should ship between 22 Aug and 29 Aug
Subject to factory lead times
The Dwyer - DRTB-RAIL-8 is a Pre-Cut DIN Rail for 8 " Sub-Panel Width featuring Perforated Steel with Electrolytic Zinc Plating. Part of the DRTB-RAIL Series. Sold individually.
Save 16%$12.36
$10.41
Should ship between 22 Aug and 29 Aug
Subject to factory lead times
The Dwyer - BS10A is a Barrier Strip featuring 10 Terminals, 16 AWG to 24 AWG, and Standard. Sold individually.
$25.88
Should ship between 21 Nov and 28 Nov
Subject to factory lead times
The Dwyer - AVK-4 is a Feed-Through Terminal Block featuring DIN Rail, 30 A, 600 Vac, 26 AWG to 10 AWG, 6 mm, Gray, and 10 mm (0.39 "). Part of the AVK Series. Sold individually.
$1.70
Should ship between 22 Aug and 29 Aug
Subject to factory lead times
The Dwyer - DRTB-RAIL-3575-1 is a Slotted DIN Rail 1.4 " x 0.3 " x 3.3 ' featuring Perforated Steel with Electrolytic Zinc Plating. Part of the DRTB-RAIL Series. Sold individually.
Save 15%$7.88
$6.70
Should ship between 22 Aug and 29 Aug
Subject to factory lead times
The Dwyer - AVK-2.5 is a Feed-Through Terminal Block featuring DIN Rail, 20 A, 600 Vac, 26 AWG to 12 AWG, 5 mm, Gray, and 10 mm (0.39 "). Part of the AVK Series. Sold individually.
$1.48
Should ship between 22 Aug and 29 Aug
Subject to factory lead times
The Dwyer - SSRL240DC10 is a High Reliability Solid State Relay featuring 1-Phase, 24 Vac to 280 Vac Line Voltage, 10 A, 3 Vdc to 32 Vdc O/P, DC Control Signal, and Screw Mount. Part of the SSRL Series. Sold individually.
Save 18%$46.57
$38.18
Should ship between 05 Dec and 12 Dec
Subject to factory lead times
The Dwyer - PUK-3 is a Feed Through Terminal Block featuring Multi-level, 24 A, 300 Vac, 24 AWG to 12 AWG, 6 mm (0.236 "), Gray, 9 mm (0.35 "), and Three level feed through Terminal Block. Part of the PUK Series. Sold individually.
Save 15%$6.23
$5.29
Should ship between 22 Aug and 29 Aug
Subject to factory lead times
The Dwyer - CG-7211981 is a Locknut featuring Polyamide, Gray, and M20. Part of the CG Series. Sold individually.
$1.28
Should ship between 22 Aug and 29 Aug
Subject to factory lead times
The Dwyer - ASK-2LD-DC is a Fuse Terminal Block with LED Blown Fuse Indicator featuring 6.3 A, 24 Vdc, 26 AWG to 8 AWG, 8 mm (0.315 "), Gray, 12 mm (0.47 "), and Fuse Size 5 mm x 20 mm & 5 x 25 mm. Part of the ASK T-Block Series. Sold individually.
$11.67
Should ship between 22 Aug and 29 Aug
Subject to factory lead times
The Dwyer - ASK-2S is a Fuse Terminal Block featuring 6.3 A, 300 Vac, 26 AWG to 8 AWG, 8 mm (0.315 "), Gray, 12 mm (0.47 "), and Fuse Size 5 mm x 20 mm & 5 mm x 25 mm. Part of the ASK T-Block Series. Sold individually.
$7.04
Should ship between 22 Aug and 29 Aug
Subject to factory lead times
The Dwyer - SSRL240DC25 is a High Reliability Solid State Relay featuring 1-Phase, 24 Vac to 280 Vac Line Voltage, 25 A, 3 Vdc to 32 Vdc O/P, DC Control Signal, and Screw Mount. Part of the SSRL Series. Sold individually.
Save 18%$54.22
$44.45
Should ship between 05 Dec and 12 Dec
Subject to factory lead times
The Dwyer - CH-50 is a Terminal Block for NB2 Type Connection Head featuring 4 Terminals, Ceramic Block with Nickel Plated Brass Terminals, 14 AWG, and White. Part of the CH Series. Sold individually.
$15.21
Should ship between 22 Aug and 29 Aug
Subject to factory lead times
The Dwyer - DRTB-RAIL-8 is a Pre-Cut DIN Rail for 8 " Sub-Panel Width featuring Perforated Steel with Electrolytic Zinc Plating. Part of the DRTB-RAIL Series. Sold individually.
Save 16%$12.36
$10.41
Should ship between 22 Aug and 29 Aug
Subject to factory lead times
The Dwyer - BS10A is a Barrier Strip featuring 10 Terminals, 16 AWG to 24 AWG, and Standard. Sold individually.
$25.88
Should ship between 21 Nov and 28 Nov
Subject to factory lead times
The Dwyer - AVK-4 is a Feed-Through Terminal Block featuring DIN Rail, 30 A, 600 Vac, 26 AWG to 10 AWG, 6 mm, Gray, and 10 mm (0.39 "). Part of the AVK Series. Sold individually.
$1.70
Should ship between 22 Aug and 29 Aug
Subject to factory lead times
The Dwyer - DRTB-RAIL-3575-1 is a Slotted DIN Rail 1.4 " x 0.3 " x 3.3 ' featuring Perforated Steel with Electrolytic Zinc Plating. Part of the DRTB-RAIL Series. Sold individually.
Save 15%$7.88
$6.70
Should ship between 22 Aug and 29 Aug
Subject to factory lead times
The Dwyer - AVK-2.5 is a Feed-Through Terminal Block featuring DIN Rail, 20 A, 600 Vac, 26 AWG to 12 AWG, 5 mm, Gray, and 10 mm (0.39 "). Part of the AVK Series. Sold individually.
$1.48
Should ship between 22 Aug and 29 Aug
Subject to factory lead times
The Dwyer - SSRL240DC10 is a High Reliability Solid State Relay featuring 1-Phase, 24 Vac to 280 Vac Line Voltage, 10 A, 3 Vdc to 32 Vdc O/P, DC Control Signal, and Screw Mount. Part of the SSRL Series. Sold individually.
Save 18%$46.57
$38.18
Should ship between 05 Dec and 12 Dec
Subject to factory lead times
The Dwyer - PUK-3 is a Feed Through Terminal Block featuring Multi-level, 24 A, 300 Vac, 24 AWG to 12 AWG, 6 mm (0.236 "), Gray, 9 mm (0.35 "), and Three level feed through Terminal Block. Part of the PUK Series. Sold individually.
Save 15%$6.23
$5.29
Should ship between 22 Aug and 29 Aug
Subject to factory lead times
The Dwyer - CG-7211981 is a Locknut featuring Polyamide, Gray, and M20. Part of the CG Series. Sold individually.
$1.28
Should ship between 22 Aug and 29 Aug
Subject to factory lead times
The Dwyer - ASK-2LD-DC is a Fuse Terminal Block with LED Blown Fuse Indicator featuring 6.3 A, 24 Vdc, 26 AWG to 8 AWG, 8 mm (0.315 "), Gray, 12 mm (0.47 "), and Fuse Size 5 mm x 20 mm & 5 x 25 mm. Part of the ASK T-Block Series. Sold individually.
$11.67
Should ship between 22 Aug and 29 Aug
Subject to factory lead times
The Dwyer - ASK-2S is a Fuse Terminal Block featuring 6.3 A, 300 Vac, 26 AWG to 8 AWG, 8 mm (0.315 "), Gray, 12 mm (0.47 "), and Fuse Size 5 mm x 20 mm & 5 mm x 25 mm. Part of the ASK T-Block Series. Sold individually.
$7.04
Should ship between 22 Aug and 29 Aug
Subject to factory lead times
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About NISCO Inc.
NISCO offers a wide range of pressure gauges & instruments, diaphragm seals, thermometers, valves, and flow control products to the industrial and commercial marketplaces, as well as other resellers like ourselves. We can also provide other value-added services such as gauge repair, NIST traceable calibration, diaphragm seal assembly, and valve automation. NISCO takes pride in providing extensive product knowledge, helpful customer service, and market competitive pricing to help fit whatever need you may have because it is our goal to be regarded by our customers as the best supplier of pressure, temperature, and flow control products.