Medium voltage products and systems.
Phase sequence relay abb.
Sqz3 phase and sequence relay.
Abb s cm mps n three phase monitoring relays for rated voltage levels up to 820 v ac and 400 hz offer maximum flexibility and control.
Abb library is a web tool for searching for documents related to abb products and services.
Phase sequence relay cm pfe width 22 5mm measuring range l1 l2 l3 208 440vac powered by measuring circuit 1 c o closed circuit principle.
Three phase monitoring relays cm pfs the cm pfs is a three phase monitoring relay that is used to monitor three phase mains for incorrect phase sequence and phase failure.
Most devices are available with two different terminals.
Phase sequence monitoring a change of the phase sequence during operation or an incorrect phase sequence that is applied at start up will cause a three phase motor to run with reverse rotation.
The device offers screw connection technology with double chamber cage connection terminals.
Phase sequence relay cm pfs s width 22 5mm measuring range l1 l2 l3 200 500vac 50 60hz powered by measuring range 2 c o closed circuit principle.
Types 47 47d 47h undervoltage and phase sequence relay.
Phase sequence relay cm pfe width 22 5mm measuring range l1 l2 l3 208 440vac powered by measuring circuit 1 c o closed circuit principle categories products low voltage products and systems control products electronic relays and controls three phase monitors.
All devices are available with two different terminal versions.
All three phase monitoring relays of the abb cm range detect a phase loss as soon as the voltage of one phase drops below 60 of its nominal value.