WR44 Series Installation Guide
16
Input Signal Information
1. Applied input voltage to activate: +4V to +28V DC
2. Applied input voltage to deactivate: 0V to +1V DC (Negative voltages can be
applied to -28V DC)
3. Maximum input current: 3mA
4. Input protection activates at more than +/-28V DC. External current limiting is
needed to protect input voltages above +/-28V DC.
Output Signal Information
1. Maximum voltage switched: +28V DC
2. Maximum current switched: +40mA
5. Output protection activates at more than +/-28V DC. External current limiting
is needed to protect input voltages above +/-28V DC.
3. Output leakage current is equivalent to a 10 Kohms resistor to Ground.
4. Suggested minimum Relay Coil resistances:
a. Supply Voltage 6V DC, minimum resistance 100 Ohms
b. Supply Voltage 12V DC, minimum resistance 240 Ohms
c. Supply Voltage 24V DC, minimum resistance 480 Ohms
5. The output switch is protected against back-EMFs generated at relay turn-off.
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