SSRL240AC25

SSRL series solid state relays are used to control large resistance heaters in conjunction with temperature controllers. Solid state relays are SPST, normally open switching devices with no moving parts, capable of millions of cycles of operation. By applying a control signal, an SSR switches ON the AC load current, just as the moving contacts do on a mechanical contactor. Three-phase loads can be controlled using 2 or 3 SSRs. Use 3 SSRs for Y or star 3-phase loads using a neutral line. Two SSRs will control delta loads with no neutral line. Three solid state relays are also used when there is no neutral load to provide redundancy and extra assurance of control.

• 20ms AC, 05 cycle DC (turn-on time), 30ms AC, 05 cycle DC (turn-off time)
• Multi-million cycle life
• Compatible with temperature controllers, solid-state, SCR design, zero voltage switching
• Control AC lines to 660VAC, LED input status indicator
• Operating temperature is -20 to 80°C
• Isolation is 4000Vrms, input to output, 2500Vrms input/output to ground
• AC control signal
• Nominal AC line voltage is 24 to 280VAC, nominal load current is 25A
• Capacitance is 8pF, input to output (maximum)
• Line frequency range from 47 to 63Hz