Finder Solid State Relay Type 77.31: New Models of the Modular SSR 30A

A new range of Solid State Relay modules with 30 A AC switching capability is now available. Housed in a plastic casing with integral aluminum heat sink and of 22.5 mm width, these SSRs feature high thermal efficiency (guaranteeing full load operation without de-rating over an ambient temperature range of -20 to 40 ° C)

Available In Two Different Terminal Versions:
• “Relay” version, i.e. where input and output terminals are on opposite sides - more suited for new installations, where it is easier to achieve greater separation between input and output wiring.
• “Contactor” version i.e. where input and output terminals are adjacent to one another - useful as a replacemenfor other SSR or electromechanical contactors in existing applications.

There Are Also Two Options of Input Voltage:
• Rated input voltage 24 V DC input (range 4 ... 32 V DC)
• Rated input 230 V AC (range 40 ... 280 V AC)

There Are Two Options of Type of Output Switching - Both Rated at 30 A , 400 V AC (range 40 ... 480 V AC):
• “Zero crossing”, suitable for lamp loads
• “Random”, particularly suitable for motor loads

The New Codes Are As Follows:
• 77.31.9.024.8050 “relay” version - input voltage 24 V DC, output Zero crossing
• 77.31.9.024.8070 “contactor” version - input voltage 24 V DC, output Zero crossing
• 77.31.9.024.8051 “relay” version - input voltage 24 V DC, output Random
• 77.31.9.024.8071 “contactor” version - input voltage 24 V DC, output Random
• 77.31.8.230.8050 “relay” version - input voltage 230 V AC, output Zero crossing
• 77.31.8.230.8070 “contactor” version - input voltage 230 V AC, output Zero crossing
• 77.31.8.230.8051 “relay” version - input voltage 230 V AC, output Random
• 77.31.8.230.8071 “contactor” version - input voltage 230 V AC, output Random

The 77 series will be expanded over the next 2-3 months, with additional modular 15 A types and a range of “Hockey Puck” style relays from 25 to 50 A

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