Instruction Book
Page v
Effective: May 2006
I.B. 2C12060H08
For more information visit: www.EatonElectrical.com
PAGE
3-8 Accessory Devices ............................................................................................................................................46
3-8.1
Plug-In Electrical Accessories ..............................................................................................................46
3-8.2
Internal Electrical Accessories .............................................................................................................48
3-8.3
Mechanical Accessories.......................................................................................................................50
3-9 MDSL Limiters/Blown Limiter Indication............................................................................................................53
3-9.1
MDSL Current Limiters .........................................................................................................................53
3-9.2
Blown Limiter Sensing..........................................................................................................................53
SECTION 4: DRAWOUT CIRCUIT BREAKER AND CASSETTE
4-1
General .............................................................................................................................................................55
4-1.1
Drawout Cassette.................................................................................................................................55
4-2
Drawout Circuit Breaker Dimensions ................................................................................................................57
4-3
Drawout Cassette Dimensions ..........................................................................................................................57
SECTION 5: FIXED CIRCUIT BREAKER
5-1
General .............................................................................................................................................................59
5-2
Fixed Circuit Breaker Dimensions .....................................................................................................................59
SECTION 6: INSPECTION AND MAINTENANCE
6-1
General .............................................................................................................................................................60
6-2
General Cleaning Recommendations ...............................................................................................................60
6-3
When to Inspect ................................................................................................................................................60
6-4
What to Inspect .................................................................................................................................................61
6-4.1 Functional Field Testing .......................................................................................................................61
6-4.2 Arc Chute Inspection ............................................................................................................................62
6-4.3
Primary Contact Inspection ..................................................................................................................63
6-5
Circuit Breaker Modifications and Changes ......................................................................................................64
6-5.1
Rating Plug Replacement.....................................................................................................................64
6-5.2
Current Sensor Replacement...............................................................................................................65
6-5.3
Current Limiter Replacement (MDSL) ..................................................................................................66
6-5.3.1 Replacing Type MA and MB Current Limiters ......................................................................................55
6-5.3.2 Replacing Type MD Current Limiters ...................................................................................................66
6-5.3.3 Replacing Type MD Current Limiters on MDSL20 Breakers................................................................66
SECTION 7: TROUBLESHOOTING
7-1
Introduction........................................................................................................................................................67
SECTION 8: RENEWAL PARTS
8-1
General .............................................................................................................................................................70
www
. ElectricalPartManuals
. com
