M-system MD7ST Instruction Manual

INSTRUCTION MANUAL
LIGHTNING SURGE PROTECTOR FOR
STANDARD SIGNAL LINE
BEFORE USE ....
Thank you for choosing M-System. Before use, please check
contents of the package you received as outlined below.
If you have any problems or questions with the product,
please contact M-System's Sales Office or representatives.
■ PACKAGE INCLUDES:
Surge protector ....................................................................(1)
■ MODEL NO.
Confirm Model No. marking on the product to be exactly
what you ordered.
■ INSTRUCTION MANUAL
This manual describes necessary points of caution when
you use this product, including installation, connection and
basic maintenance procedures.
When using this product in potentially explosive atmos-
phere or hazardous (classified) location, you have to follow
the safety procedure to install it. Please refer to "SAFE IN-
STALLATION MANUAL" for each type of certification.
LIMITATION APPLICABLE TO M-RESTER
The M-RESTER will protect electronics equipment from
damage caused by lightning by absorbing most of the
surge voltages.
However, M-RESTER may not be effective against cer-
tain extremely high voltages caused by a direct or almost
direct hit by lightning.
M-RESTER must be installed according to this installa-
tion / instruction manual.
Table 1. Specifications
MODEL NO. NOMINAL VOLTAGE
SHLD TERMINAL
Max. continuous Line to Line
operating voltage
Line to Earth
(Uc)
Line to SHLD
SHLD to Earth
Voltage protection Line to Line
level (Up)
Line to Earth
@4kV (1.2 / 50 µs)
Line to SHLD
SHLD to Earth
Leakage current Line to Line
@Uc
Other sections
Response time Line to Line
Other sections
Max. discharge current (Imax)
Nominal current (I )
N
Internal series Without fuse
resistance
With fuse
SEN TRONIC
(ultra-slim)
GENERAL
■ FUNCTION & FEATURES
• High discharge current capacity 20 kA (8 / 20 µs), 1 kA
(10 / 350 µs)
• Ultra-thin 7-mm-wide module can be mounted in high
density
• Excellent protection employing multi-stage SPD circuits
• DIN rail mounting and grounding
• Shield terminal provided
■ SPECIFICATIONS
See Table 1.
MD7ST-24
FF FG GF
30V
±160V
±160V
±160V short ±160V
60V
±800V
±1200V ±800V ±60V
±800V short ±800V
≤5µA
≤5µA
≤4 nsec.
≤20 nsec.
20kA (8 / 20 µs), 1.0kA (10 / 350 µs)
4.7Ω ±10% per line
7.5Ω ±10% per line
056 222 38 18 mailbox@sentronic.com
AG
MODEL
GG FF FG
30V ±160V
30V ±160V
short ±160V short
±60V ±800V
±1200V ±800V
short ±800V short
250mA
10Ω ±10% per line
12.5Ω ±10% per line
www.sentronic.com
MD7ST
MD7ST-60
GF GG
70V
70V
70V
±160V short
115V
±115V
±115V
±800V short
≤5µA
≤5µA
≤4 nsec.
≤20 nsec.
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