RV4-1/440 is a varistor type surge suppressor designed to reduce the maximum overvoltage peak value and to limit the high pre-damping voltage frequencies that occurs on the control circuit when operating a contactor. The opening of a contactor coil can causes high voltage surges of several kV that can cause interferences and damages to sensitives electronic in the installation. The RV4-1/440 can operate une control voltage within 250 ... 440 V AC 50/60 Hz. The RV4 surge suppressor is mounted directly on the AFC contactor, either on top or bottom, and is including the coil connection terminals. RV4 are designed specifically for AFC contactors or NFC relays.
Speed Variation and Motor Starting
RV4-1440 Surge Suppressor
Nortécnica Ref:
EAN:
3471523020481
Description
Technical Information
Attributes
Type of accessoryspare part
Other
Accessory
Yes
Spare part
No
Brands
ABB
Descrição Longa
RV4-1/440 is a varistor type surge suppressor designed to reduce the maximum overvoltage peak value and to limit the high pre-damping voltage frequencies that occurs on the control circuit when operating a contactor. The opening of a contactor coil can causes high voltage surges of several kV that can cause interferences and damages to sensitives electronic in the installation. The RV4-1/440 can operate une control voltage within 250 ... 440 V AC 50/60 Hz. The RV4 surge suppressor is mounted directly on the AFC contactor, either on top or bottom, and is including the coil connection terminals. RV4 are designed specifically for AFC contactors or NFC relays.