User manual

Publication 1760-UM001D-EN-P - September 2005

Installation 2-13

For inductive dc load devices, a diode is suitable. A 1N4004 diode is

acceptable for most applications. A surge suppressor can also be used.

See the table on page 2-14 for recommended suppressors.

As shown in the illustration below, these surge suppression circuits

connect directly across the load device.

Surge Suppression for Inductive ac Load Devices

Output Device

Varistor RC Network Surge

Suppressor

Surge Suppression for Inductive dc Load Devices

Output Device

Diode

(A surge suppressor can also be used.)