General purpose plug-in relays in the 60 series:

• Voltages of AC and DC coils.
• Test/override button that is locked.
• Eight-pin and three-pole (2 and 11 pin) switch between versions.
• Plug-in termination: 8-pin (2-pole), 11-pin (3-pole), round pin.
• Relay status is shown mechanically with a manual override facility.