97.01SPA Relay Socket, DIN Rail, Panel, Screw, 5 Pins. The 97.01SPA is a 5-pin Relay Socket with screw terminals, plastic retain and release clip. This 97 series relay socket is ideal for DIN rail or panel mounting. It comes with a metal retaining clip, identification tag, 8-way jumper link, timer modules, plastic retain and release clip. This socket and its accessories suitable for 46 series 46.61 relay.