Allen-Bradley 857 User Manual

Rockwell Automation Publication 857-QS001B-EN-P - April 2017 11
Overview Chapter 1
Catalog Number Explanation
a
Nom Phase Current (A) / Nom DI7-28 Activation Voltage
31 A/5 A / 24V
6 1 A/5 A / 110V
7 1 A/5 A / 220V
b
Nom Earth-fault Current I/O1 and I/O2 [A]
C1 A and 5 A
D0.2 A and 1 A
c
Additional I/O (X8 Terminal)
6None
7 Eight standard inputs, four TCS Hybrid inputs/outputs
8Ten outputs
9 Eight standard inputs and four outputs
(1)
(1) Some options not UL Listed. Check with your Rockwell Automation® representative.
d
Supply Voltage [V]
A 40…265Vac/dc
B 18…36 Vdc
C 40…265Vac/dc + Arc Protection Option
D 18…36 Vdc + Arc Protection Option
E 40…265Vac/dc + DI19, DI20 + arc channel, Optional
F 18…36 Vdc + DI19, DI20 + arc channel, Optional
e
Optional Hardware (Communication port 1)
Code Description
A TTL/RS-232 (VCM TTL)
B Plastic/Plastic serial fiber interface (VCM FIBRE PP)
CN/A
D RS-485 interface (4-wire, VCM 485-4)
E
Glass/Glass dual serial fiber interface for 857-RAD (857-VCMFIBRE
GG)
(1)
(1) Required for connection to 857-RAD Enhanced RTD Scanner. Only available in this location.
F Rx Plastic/Tx Glass serial fiber interface (VCM FIBRE PG)
G Rx Glass/Tx Plastic serial fiber interface (VCM FIBRE GP)
I RJ45 connection (RS-232, VCM 232)
M ST 100-Mbps Ethernet dual fiber interface inc. IEC 61850
N RTD glass fiber interface for 857-RAA (857-VCMRTD)
(2)
(2) Required for connection to the 857-RAA scanner only.
f
Optional Hardware (Communication port 2)
ANone
C RJ45 connection (RS-232, 857-VCM232)
D RS-485 interface (2-wire, 857-VCM485-2)
L Built-in RJ45 10 Mbps Ethernet interface
(1)
M Built-in RJ45 10 Mbps Ethernet interface inc. IEC 61850
(1)
(1) Cannot order in combination with the following optional Communication PORT 1:
(M) ST 100-Mbps Ethernet fiber interface with IEC 61850.
N RTD interface for 857-RAA (Glass fiber, 857-VCMRTD)
(2)
(2) Required for connection to the 857-RAA scanner only.
g
Ingress Protection Rating
- IP30 (Standard)
I IP54 (Optional)
C Ip30 (standard case) with conformal coated boards
K IP54 (dust-tight case) with conformal coated boards
Position
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857 – 3 C 6 A A A –__
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Allen-Bradley 857 Specifications

General

Brand	Allen-Bradley
Model	857
Category	Protection Device
Language	English