Page 44
POWERING TECHNOLOGY
Manual No. MS0027-MAN rev. 4
guardian_access_3u_ms27-man-rev4-0817.indd
Chapter 6 Maintenance & Troubleshooting
6.1 Maintenance
6.1.1 Checking Terminal Connection
The connections on the terminal blocks and circuit breakers must be checked according to
the Table 6-1 at least once a year.
TYPE OF CONNECTION MODEL / DESCRIPTION TORQUE
(Nm)
TORQUE
(Inch LB)
Terminal block for rail AKG 16mm² 2.5 22
Terminal block for rail AKG 35mm² 3.5 31
Front terminal for copper cables FC Cu T2 95mm² 7.0 62
Terminal block Weidemullers WDU 4mm 0.6 5
Terminal block Weidemullers WDU 10mm 2.0 18
Terminal block Weidemullers WDU 16mm 3.0 27
Miniature circuit breaker Siemens 2.5 22
Miniature circuit breaker Merlin G 3.5 31
Miniature circuit breaker ABB 2.0 18
Miniature circuit breaker CBI HY-MAG 3.0 27
Molded case circuit breaker ABB 160A - S2 5.0 45
Molded case circuit breaker ABB 160A/250A - S3/S4 9.0 80
Molded case circuit breaker ABB 630A - S6 9.0 80
Molded case circuit breaker Terasaki - XS125CJ 9.0 80
Connection unit for 2 or 3 pole breaker Merlin G & Siemens 13.5 120
Terminal Block Phoenix Phoenix Mini Combicon 0.25 2
Terminal block Phoenix UK10 / UKLKG10 1.5-1.8 13-16
Terminal block Phoenix UK16 / USLKG16 1.5-1.8 13-16
Terminal block Phoenix UK35/UIK35/USKG35/UISKG35 3.2-3.7 28-33
Miniature circuit breaker Nadar 2.5 22
Table 6-1 Connection Torque Setting Check
6.1.2 Other Requirements
At least once a year the output voltage should be veried to be within acceptable limits. The
result of the test should be recorded and led to see any deviations.
In addition, the system requires periodic inspections and routine cleaning. It is very important
to keep the all areas and components of the system free from dust or other unwanted objects
to ensure free air circulation and safe operation of the system.
To Next Page
Loading...
Need help?
General
