ESR5-NO-31-24VAC-DC Safety Relay; Voltage Rating 24 Volt AC/DC; Frequency Rating 50/60 Hertz; Contact Configuration 3NO; Terminal Type Screw; Operating Temperature -4 to 131 Deg F (Ambient); Approval UL, CSA, CE, TUV; Applicable Standard EN ISO 13849-1, IEC 62061/61508, DIN EN 50178; Power Rating 3.4 Watt; Cable Size 21 to 12 AWG; Application Emergency Stop, Rope Pull, Two-Hand Control Station, Light Curtain (OSSD), Gate Enable Device, Safety Switch