Doc
#
E149701
4-21
4: Electrical Installation
Electro
Industries/GaugeTech
The Leader In Power Monitoring and Smart Grid Solutions
Electro
Industries/GaugeTech
The Leader In Power Monitoring and Smart Grid Solutions
4.9: Extended Surge Protection for Substation Instrumentation
The EI-MSB10-400 surge protector is designed to protect sensitive equipment from
the damaging effects of lightning strikes and/or industrial switching surges in single
phase AC networks up to 320 V AC (L-N / L-G), and DC networks up to 400 V DC. The
protectors are ideal for metering systems, RTUs, PLCs and protective relays. They are
used specifically to extend the life and increase reliability of critical control apparatus.
For best protection, it is recommended to use two protectors. These will protect the
instrument on the line inputs and on the reference input to ground. The protectors
have LED indication to annunciate when the protection has worn out.
The EI-MSB10-400 is connected by wires in parallel with the network to be protected.
It can be easily mounted on a wall or plate with self-adhesive tape.
See the wiring diagram below.
Figure 4.5: Wiring Schematic for Extended Surge Suppression
Suitable for Substation Instrumentation
PE
N (-)
L (+)
L/N
L/N
L/N
L/N
Va
Vb
Vc
GND
L (+)
N (-)
BREAKER
Vref
EI-MSB10-400
FUSE
FUSE
EI-MSB10-400
Substation
Instrumentatio
PE
N (-)
L (+)
L/N
L/N
L/N
L/N
Va
Vb
Vc
GND
L (+)
N (-)
BREAKER
Vref
EI-MSB10-400
FUSE
FUSE
EI-MSB10-400
Substation
Instrumentation
Summary of Contents for Shark 200
Page 1: ...V 1 24 March 15 2018 ...