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Attaching the Cabinet to the UPS 

 
The Maintenance Bypass Switch cabinet was constructed so that it can be mounted to the 
side of the UPS cabinet if desired.  To attach the Maintenance Bypass Switch Cabinet to 
the UPS Cabinet: 

 
1.  Remove right side panel of UPS and save hardware. 
 
2.  Butt left side of MBS cabinet up against the right side of the UPS. 
 
3.  Bolt the cabinets together at (6) locations with the supplied 5/16 hardware through 

the slots noted as "A" in 

Figure 3

 
4.  Mount right side panel of UPS on the right side of the MBS cabinet using the 

hardware from the UPS. 

 

 

 

Figure 3 - Cabinet to Cabinet Mounting Hole Locations 

 
 

 

LEFT SIDE VIEW

A

A

A

A

A

A

Содержание FLU-160-00

Страница 1: ...003 2621 FIRSTLINE P Maintenance Bypass Switch Cabinet 160kVA 250kVA 480V Input Output With SKRU USER MANUAL...

Страница 2: ...e P Maintenance Bypass Switch Technical Specifications 18 Table 1 Symbols 4 Table 2 Model Floor Loadings 5 Table 3 Wire Size Requirements 10 Table 4 Recommended Crimp Lugs 10 Table 5 Maximum Current R...

Страница 3: ...the top and the bottom for maximum flexibility in wiring the source and load power connections Please refer to Figure 1 for the outline drawing of the cabinet All dimensions in Inches millimeters Fig...

Страница 4: ...net MBS than is required for the UPS but special installation requirements must be met the power source connected to the MBS must include circuit protection as specified for the input in the UPS manua...

Страница 5: ...vent the possibility of backfeed Read and follow the instructions that came with the associated UPS or emergency lighting system before operating this equipment DANGER This equipment contains lethal v...

Страница 6: ...ould only be performed by qualified service personnel knowledgeable of batteries and the required precautions Keep unauthorized personnel away from batteries Read understand and follow all instruction...

Страница 7: ...carrier within 15 days of receipt of the equipment 2 Send a copy of the damage claim within 15 days to your service representative Floor Loading When planning the installation consider the cabinet wei...

Страница 8: ...t strap or similar device of sufficient strength to tie the upper part of the cabinet to the forklift tower before moving 5 Keep people out of the fall zone If the cabinet topples over stand clear 6 W...

Страница 9: ...binet 1 Remove right side panel of UPS and save hardware 2 Butt left side of MBS cabinet up against the right side of the UPS 3 Bolt the cabinets together at 6 locations with the supplied 5 16 hardwar...

Страница 10: ...the equipment is the proper type The equipment covered by this manual is 480 V 60 Hz input and output only The Maintenance Bypass Switch Cabinet MBS can be used in delta delta or wye wye applications...

Страница 11: ...BREAKER PANELBOARD 1 BREAKER PANELBOARD 2 BREAKER DISPLAY ALARM TEMP ALARM TO UPS REQUEST BYPASS INPUT FRONT PANEL TRIP SWITCH KEYLOCK RELEASE ON BYPASS TRANSFORMER TEMP SWITCHES HT OT REPO SWITCH EXT...

Страница 12: ...e Connectors Thomas Betts Single Hole Connectors 3 8 2 0 54210 54110 3 0 54211 54111 4 0 54212 54112 250 kcmil 54213 54174 300 kcmil 54214 54179 350 kcmil 54215 256 30695 112 400 kcmil 54216 54116 500...

Страница 13: ...r terminal pads to the load The load may be an external distribution panel etc If neutral is not needed by the load then it does not need to be supplied The wire must be in compliance with Table 3 and...

Страница 14: ...a shielded cable with three twisted pairs and is available from a number of sources in various spool lengths Two pairs are required Pair 1 First wire from terminal 2 of the Low Voltage Connection Ter...

Страница 15: ...ode It does not matter which type of bypass but bypass via SWMB is the simplest to engage There are signals that support an interlock function to prevent BKR2 from being closed unless BKR3 is open or...

Страница 16: ...on Bypass lamp will flash and the inverter will stop and battery supported operation is no longer possible 3 Close BKR2 4 Open BKR3 5 Shut down the UPS if desired by opening SWOUT SWIN SWBY and open t...

Страница 17: ...he load is powered via BKR2 MBS mode A fault in the UPS could cause the upstream circuit protection circuit breaker or fuse to operate removing power from both the faulted UPS input and the MBS input...

Страница 18: ...eaker 1 Breaker 2 Breaker 3 Adjacent State s Normal closed open closed Overlap Test UPS Test Battery Overlap closed closed closed Normal UPS Unloaded UPS Unloaded closed closed open Overlap Maintenanc...

Страница 19: ...Verify load on bypass by observing front panel of UPS 3 Close Breaker 3 UPS Unloaded Maintenance 1 Turn Off UPS 2 Open Breaker 1 Maintenance UPS Unloaded 1 Close Breaker 1 2 Turn On UPS Maintenance L...

Страница 20: ...minations usually are the sign of a loose connection but can also signal that a breaker is failing Loose connections should only be serviced after removal of power If the system is powered down consid...

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