ABB REF 545 Product Guide

Feeder Terminal REF 541, REF 543, REF 545.
1MRS750443-MBG
50
Overview of REF hardware configurations
Hardware modules of REF 541 Order number
REF541K_115AAAA REF541K_115BAAA REF541K_115CAAA REF541K_115AABA REF541K_115BABA REF541K_115CABA REF541K_115AAAB REF541K_115BAAB REF541K_115AABB REF541K_115BABB REF541K_118AAAA REF541K_118BAAA REF541K_118CAAA REF541K_118AABA REF541K_118BABA REF541K_118CABA REF541K_118AAAB REF541K_118BAAB REF541K_118AABB REF541K_118BABB
Analogue interface
Sensor channels (current or voltage) 9 9 9 9 9 9 9 9 9 9
Current transformer 1/5 A 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
Current transformer 0.2/1 A 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Voltage transformer 100 V 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
Main processor boards
CPU module 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Power supply boards
PS1: 80...265 Vdc/ac (High) 1 1 1 1 1 1 1 1
PS1: 80...265 Vdc/ac (Medium) 1 1 1 1 1 1 1 1
PS1: 18...80 Vdc (Low) 1 1 1 1
PS2: 80...265 Vdc/ac
PS2: 18...80 Vdc
Digital I/O boards
BIO1: threshold voltage 155 Vdc 1 1 1 1 1 1 1 1
BIO1: threshold voltage 80 Vdc 1 1 1 1 1 1 1 1
BIO1: threshold voltage 18 Vdc 1 1 1 1
BIO2: threshold voltage 155 Vdc
BIO2: threshold voltage 80 Vdc
BIO2: threshold voltage 18 Vdc
Analogue I/O board
RTD/analogue module 1 1 1 1 1 1 1 1 1 1
Display boards
Graphic HMIHMI display, fixed 1 1 1 1 1 1 1 1 1 1 1 1
Graphic HMI display, external 1 1 1 1 1 1 1 1
Mechanical design
1/2 enclosure 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Digital inputs 15 15
Power outputs, single-pole 0 0
Power outputs, double-pole 5 5
Signal outputs (NO) 2 2
Signal outputs (NO/NC) 5 5
Supervised trip circuits 2 2
IRF outputs 1 1
RTD/analogue inputs 0 8
Analogue outputs 0 4

ABB REF 545 Specifications

General

Brand	ABB
Model	REF 545
Category	Touch terminals
Language	English