The EV6421M is a general-purpose DIN-rail or (surface) mounting thermo-regulator with an on/off control action and available in 115V and 230V mains-supply versions.
The built-in display may be set to display temperatures in either Celsius or Fahrenheit and the display resolution, depending on inputs, is 0.1C, 1C or 1F.
Each of the dual alarms may be set as high or low and absolute or relative.
The output relay will handle AC loads of up to 10A, and may be wired normally open (NO) or normally closed (NC).
Additionally, there is a multipurpose digital input (5V, 1mA, NO/NC), the action of which may be programmed.
Programming is done manually via the integral, lockable keypad.
The EV6421M is IP54 protected and has a body of self-extinguishing grey plastic.
The working temperature range is 0 to 55C and the working humidity range is 10 to 90 per cent RH without condensation.
Connection to the module is via screw terminals and its size is three DIN modules or 53 x 90 x 61mm.
