MAT2
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: +81(6)6659-8201 Fax: +81(6)6659-8510 E-mail: [email protected]
EM-8149 Rev.6 P. 6 / 6
MAINTENANCE
Even lightning in remote locations could induce surges
without our knowledge. Regular checking of the surge pro-
tector is important to find degradations in early stage, be-
fore and after the storm seasons, and whenever you experi-
ence a strong lightning storm.
DO NOT attempt checking or replacing the surge protector
during a thunder storm for safety.
Checking procedure is as explained below:
■
CHECK EXTERIOR
If discoloration or deformation is observed, replace with a
new one immediately.
■
CHECK MONITOR LED
Green LED turns on during normal operation, indicating
the surge protector is functioning properly. Turning off
means that the protector is in failure. Replace with a new
one immediately.
■
CHECK WITH A INSULATION TESTER
Confirm conduction across the same terminals with a 500V
DC 1000 MΩ insulation tester. If the tester shows 20 MΩ
or less, the protector is in failure. Replace with a new one
immediately.
EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENT
Unit: mm (inch)
45°
(WIRE INSERTION ANGLE)
DIN RAIL
35mm wide
[3.4 (.13)]
60 (2.36)
80 (3.15)
*
Open/close type.
**
Only for ‘Alarm output’ code ‘A’.
5–M5 SCREW
TERMINAL COVER
*
MONITOR LED
SPECIFICATION
ALARM OUTPUT
**
TERMINAL
1 (.04)
98 (3.86)
50 (1.97)
15 (.59) 15 (.59)
15 (.59)
80 (3.15)
12.5 (.49)
A1
A2
C
1
2
N
PE
3
