ABB REF615 F User Manual

PO1
PO2
X100
6
7
8
9
GUID-4E1E21B1-BEEC-4351-A7BE-9D2DBA451985 V1 EN
Figure 17: Dual single-pole power output contacts PO1 and PO2
3.10.1.2 Double-pole power outputs PO3 and PO4 with trip circuit supervision
The power outputs PO3 and PO4 are double-pole normally open/form A power
outputs with trip circuit supervision.
When the two poles of the contacts are connected in series, they have the same
technical specification as PO1 for breaking duty. The trip circuit supervision
hardware and associated functionality which can supervise the breaker coil both
during closing and opening condition are also provided. Contacts PO3 and PO4 are
almost always used for energizing the breaker trip coils.
1YHT530004D05 D Section 3
Basic functions
615 series 81
Technical Manual

ABB REF615 F Specifications

General

Type	Feeder Protection Relay
Nominal Frequency	50/60 Hz
Rated Current	1 A / 5 A
Protection Functions	Overcurrent, Earth Fault, Under/Over Voltage
Communication Protocols	IEC 61850, Modbus, DNP3, IEC 60870-5-103
Mounting	Flush mounting
Ingress Protection	IP54 (front), IP20
Operating Temperature Range	-25 to +55 °C