ABB PRO-33.0-TL Series, Product Manual

Page: 108 / 136

108 Maintenance
Surge protection device replacement (-SX model)
The surge protection device has 3 consumable cartridges. When the indicator on a
cartridge is red, replace all three cartridges to ensure surge protection.
To replace the SPD:
1. Set the inverter DC switch to OFF.
2. Remove the first cover. Refer to First cover on page 50 .
3. Replace cartridges with new ones of the same type. Refer to Technical data on
page 123 .
4. Attach the first cover.
5. Set the inverter DC switch to ON.
6. Monitor the inverter to make sure that it is working correctly.