Power Output Contacts; Dual Single-Pole Power Outputs Posp1 And Posp2 - ABB RELION REX640 Technical Manual

Section 3
Basic functions
3.14.1
3.14.1.1
152
can also be used to energize an external trip relay, which in turn can be configured to
energize the breaker trip or close coils.
Using an external trip relay can require an external trip circuit
supervision relay. It can also require wiring a separate trip relay
contact back to the protection relay for breaker failure protection
function.
All contacts are freely programmable, except the internal fault output IRF.

Power output contacts

Power output contacts are normally used for energizing the breaker closing coil and
trip coil, external high burden lockout or trip relays.

Dual single-pole power outputs POSP1 and POSP2

Dual (series-connected) single-pole (normally open/form A) power output contacts
POSP1 and POSP2 are rated for continuous current of 8 A. The contacts are normally
used for closing circuit breakers and energizing high burden trip relays. They can be
arranged to trip the circuit breakers when the trip circuit supervision is not available
or when external trip circuit supervision relay is provided.
The power outputs are included in the power supply module in slot G.
GUID-2BD02AF5-2949-41F6-9431-E619BB3FB68C V2 EN
Figure 44: Dual single-pole power outputs in power supply module
1MRS759142 C
REX640
Technical Manual