Finder expands its range of SSRs with its new, compact 77 Series ‘hockey puck’ style solid state relays

The new 77 Series solid-state relays (SSRs) are ideal for use where switching speed and a high number of switching operations are key requirements of applications including resistive loads, solenoids and motor loads. When switching loads with high inrush currents, such as lamps, the new 77 Series SSRs are recommended. These can be mounted either on a dedicated heatsink or directly onto a metal cabinet.

The range includes ‘hocky puck’ SSRs for single-phase, two-phase and three-phase applications. They are available with a range of different current ratings, switching voltages and supply voltages (AC or DC), and also have two switching modes (Zero-crossing or Random).

The 77 Series of SSRs includes:

• Single-phase from 25 A to 125 A, and a nominal switching voltage up to 660 V AC
• Two-phase for panel mounting with two independent output channels of 25, 50 or 75 A, with random switching and a nominal output voltage of 600 VAC. This SSR can control 2 different loads independently.
• Three-phase for panel mounting from 25 to 80 A, with random switching – ideal for the fast switching of motor loads

Features across the entire range include:

• High switching speed and electrical life
• Spark and bounce-free silent switching
• Low-power input circuit
• “Hockey puck” housing with folding screw cover

For detailed technical specifications of each Type, visit the 77 Series page on our website and download the relevant product documentation.