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Solid State Relays

Solid State Relays

The Life Of Electric Heating Elements Increases As Much As 20 Times When The On-Off Cycle Time Is Kept Less Than One Second. Solid State Relays Can Provide Faster On-Off Cycle Times Compared To Electro-Mechanical Relays Including Mercury Contactors, And They Control Temperature Much More Accurately And Can Also Allow The Use Of Higher Watt Density Heating Elements. SSR's Can Also Last Many Years When Properly Protected With Voltage Snubbers, Semi-Conductor Current Limiting Fuses And Properly Mounted With Appropriate Heat Sinks.
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25A SPST N/O 240Vac Power 3~32Vdc Control 25A SPST N/O 240Vac Power 3~32Vdc Control

Reference: SSR-240-25A-DC1

Brand: Watlow Electric Mfg.

25A SPST N/O 240Vac Power 3~32Vdc Control

Zero cross fire Back to back SCR design Maximum I²T fusing is 260A²seconds Line voltage 24~240Vac Ambient operating temperature -40°F to +176°F Thermal resistance 1.05°F C/W Internal voltage snubber Includes thermal foil, washers, and screws for mounting to a heat sink Equal to Crydom D2425 and Potter & Brumfield SSRT-240D25      
$64.80
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SSR-240-25A-AC1 SSR-240-25A-AC1

Reference: SSR-240-25A-AC1

Brand: Watlow Electric Mfg.

25A SPST N/O 240Vac Power 90~280Vac Control

Zero Cross Fire Back to Back SCR Design Hocky Puck Style Maximum I²T Fusing is 260A² Seconds Line Voltage 24~240Vac Ambient Operating Temperature -40°F ~ 176°F Thermal Resistance 1.05°F C/W Internal Voltage Snubber Equal to Crydom A2425 and Potter & Brumfield SSRT-240A25
$72.74
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SSR-240-10A-DC1 SSR-240-10A-DC1

Reference: SSR-240-10A-DC1

Brand: Watlow Electric Mfg.

10A SPST N/O 240Vac Power 3~32Vdc Control

Zero cross fire Back to back SCR design Maximum I²T fusing is 60A²seconds Line voltage 24~240Vac Ambient operating temperature -40°F to +176°F Thermal resistance 1.48°F C/W Internal voltage snubber Includes thermal foil, washers, and screws for mounting to a heat sink Equal to Crydom D2410 and Potter & Brumfield SSRT-240D10        
$56.87
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SSR-240-10A-AC1l SSR-240-10A-AC1l

Reference: SSR-240-10A-AC1

Brand: Watlow Electric Mfg.

10A SPST N/O 240Vac Power 90~280Vac Control

Zero cross fire Back to back SCR design Maximum I²T fusing is 60A² seconds Line voltage 24~240Vac Ambient operating temperature -40°F to +176°F Thermal resistance 1.48°F C/W Internal voltage snubber Equal to Crydom A2410 and Potter & Brumfield SSRT-240A10
$63.48
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40A SPST N/O 240Vac Power 3~32Vdc Control 40A SPST N/O 240Vac Power 3~32Vdc Control

Reference: SSR-240-40A-DC1

Brand: Watlow Electric Mfg.

40A SPST N/O 240Vac Power 3~32Vdc Control

Zero Cross Fire Back to Back SCR Design Hocky Puck Style Maximum I²T Fusing Is 1620A²Seconds Line Voltage 24~240Vac Ambient Operating Temperature -40°F ~ 176°F Thermal Resistance .63°F C/W Internal Voltage Snubber Includes Thermal Foil, Washers, And Screws For Mounting To A Heat Sink Equal to Crydom D2440DEH and Potter & Brumfield SSRT-240D40      
$88.61
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SSR-240-40A-AC1 SSR-240-40A-AC1

Reference: SSR-240-40A-AC1

Brand: Watlow Electric Mfg.

40A SPST N/O 240Vac Power 90~280Vac Control

Zero Cross Fire Back to Back SCR Design Hocky Puck Style Maximum I²T Fusing Is 1620A²Seconds Line Voltage 24~240Vac Ambient Operating Temperature -40°F ~ 176°F Thermal Resistance .63°F C/W Internal Voltage Snubber Includes Thermal Foil, Washers, And Screws For Mounting To A Heat Sink Equal to Crydom A2440DEH and Potter & Brumfield SSRT-240A40      
$97.87
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50A SPST N/O 240Vac Power 3~32Vdc Control 50A SPST N/O 240Vac Power 3~32Vdc Control

Reference: SSR-240-50A-DC1

Brand: Watlow Electric Mfg.

50A SPST N/O 240Vac Power 3~32Vdc Control

Zero Cross Fire Back to Back SCR Design Hocky Puck Style Maximum I²T Fusing Is 1620A²Seconds Line Voltage 24~240Vac Ambient Operating Temperature -40°F ~ 176°F Thermal Resistance 0.31°F C/W Internal Voltage Snubber Includes Thermal Foil, Washers, And Screws For Mounting To A Heat Sink Equal to Crydom D2450DEH and Potter & Brumfield SSRT-240D50      
$91.25
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SSR-480-50A-DC1 SSR-480-50A-DC1

Reference: SSR-480-50A-DC1

Brand: Watlow Electric Mfg.

50A SPST N/O 480Vac Power 3~32Vdc Control

Zero Cross Fire Back to Back SCR Design Hockey Puck Style Maximum I²T Fusing Is 1620A²Seconds Line Voltage 24~530Vac Ambient Operating Temperature -40°F ~ 176°F Thermal Resistance 0.63°F C/W Internal Voltage Snubber Includes Thermal Foil, Washers, And Screws For Mounting To A Heat Sink Equal to Crydom D4850DEH and Potter & Brumfield SSRT-480D50
$138.86
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IDEC RSSAN-25A IDEC RSSAN-25A

Reference: RSSAN-25A

Brand: IDEC

25A SPST N/O 600Vac Power 90~280Vac Control

Zero Cross Fire Back to Back SCR Design Control Voltage 90 ~ 280Vac Pick Up Voltage 90Vac Drop Out Voltage 10Vac Line Voltage 48 ~ 650Vac Snubbed For 0.5 Power Factor At Rated Load Ambient Operating Temperature -40°F ~ 176°F Thermal Resistance 1.5°C/W LED Indicator
$63.48
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