![Electro Industries/GaugeTech Shark 100B Installation And Operation Manual Download Page 81](http://html.mh-extra.com/html/electro-industries-gaugetech/shark-100b/shark-100b_installation-and-operation-manual_2379723081.webp)
Doc
#
E145701
4-21
4: Electrical Installation
Electro
Industries/GaugeTech
™
Powered by Innovation™
4.9: Extended Surge Protection for Substation Instrumentation
EIG offers a surge protector for applications with harsh electrical conditions. The
surge protector is EI-MSB10-400 and it can be ordered from EIG’s webstore:
www.electroind.com/product/ei-msb10-400-surge-protector/
.
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 320VAC (L-N / L-G), and DC networks up to 400 VDC. 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