Products
PW-MBS UPS Maintenance Bypass System

Description
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Installation of an external UPS maintenance bypass system allows system maintenance to be carried
out quickly and safely without disruption to the protected load. Load is transferred to mains supply and the UPS is completely isolated.

Application
All hardwired UPS (typically UPS rated at over 3kVA) with on-line double conversion technology and having an integral static bypass.

Benefits & Features

  Available in single phase, three phase and three phase input single phase
  output configurations up to 160kVA (three phase) on a standard
  build from stock.

  Larger bypass systems, and parallel bypass systems to order on minimal
  lead-time.

  Full make before break action, UPS can be bypassed without disruption to
  the supplied load.

  Engineers key with status indicator to prevent unauthorized bypass
  operation.

  Backup circuit operation to allow fast emergency bypass in the event of
  complete UPS failure.

  Circuit breakers to protect system from shorts and overloads.

  Circuit breakers are ‘D’ curve rated to prevent nuisance tripping.

  High quality cabinet in heavy gauge steel with corrosion resisting epoxy
  paint finish.

  Removable gland plates for easy cable installation.

  Range of flexible options, including full system isolation switch, separate
  bypass supply switching and intelligent interface to UPS for inverter
  interlock.

  Additional options that can reduce the overall cost of system
  installation including combined outgoing distribution with protection
  circuit breakers and integral surge and lighting protection.
PW-MBS- 3 Bypass System for Three Phase UPS
  UPS size (up to)   Input Output   Bypass   Cabinet Size*   Connection type
5kVA 10A 8A 8A 2 cage clamp tp 10mm csa
7.5kVA 13A 13A 13A 2 cage clamp tp 10mm csa
10kVA 20A 16A 16A 2 cage clamp tp 10mm csa
12.5kVA 25A 20A 20A 2 cage clamp tp 10mm csa
15kVA 32A 25A 25A 2 cage clamp tp 10mm csa
20kVA 40A 32A 32A 2 cage clamp tp 10mm csa
25kVA 50A 40A 40A 2 lugg, 6mm stud
30kVA 63A 50A 50A 2 lugg, 6mm stud
40kVA 80A 63A 63A 2 lugg, 6mm stud
50kVA 100A 80A 80A 2 lugg, 6mm stud
60kVA 125A 100A 100A 2 lugg, 6mm stud
80kVA 160A 125A 125A 3 lugg, 6mm stud
100kVA 200A 160A 160A 3 lugg, 8mm stud
120kVA 200A 200A 200A 3 lugg, 8mm stud
140kVA 250A 250A 250A 3 lugg, 8mm stud
160kVA 300A 250A 250A - lugg, 10mm stud
#200kVA 400A 300A 300A - lugg, 10mm stud
#250kVA/275kVA 500A 400A 400A - lugg, 10mm stud
Note # enquire for lead time and sizes
 
PW-MBS3/1 Bypass System for Three Phase Input,Single Phase Output UPS
  UPS size (up to)   Input Output   Bypass   Cabinet Size*   Connection type
3kVA 16A 13A 13A 1 cage clamp tp 10mm csa
3kVA 25A 20A 20A 1 cage clamp tp 10mm csa
5kVA 32A 25A 25A 1 cage clamp tp 10mm csa
7.5kVA 40A 40A 40A 1 cage clamp tp 10mm csa
10kVA 63A 50A 50A 1 lug, 6mm stud
125kVA 63A 63A 63A 2 lug, 6mm stud
15kVA 100A 80A 80A 2 lugg, 6mm stud
20kVA 100A 100A 100A 2 lugg, 6mm stud
22.5kVA 125A 100A 100A 2 lugg, 6mm stud
25kVA 125A 125A 125A 2 lugg, 6mm stud
30kVA 160A 160A 160A 3 lugg, 6mm stud
 
PW-MBS-1 Bypass System for Single Phase UPS
  UPS size (up to)   Input Output   Bypass   Cabinet Size*   Connection type
1kVA 6A 5A 5A 1 cage clamp tp 10mm csa
1.2kVA 8A 6A 6A 1 cage clamp tp 10mm csa
1.6kVA 10A 8A 8A 1 cage clamp tp 10mm csa
2kVA/2.2kVA 13A 10A 10A 1 cage clamp tp 10mm csa
3kVA 16A 13A 13A 1 cage clamp tp 10mm csa
4kVA 25A 20A 20A 1 cage clamp tp 10mm csa
5kVA 32A 25A 25A 1 cage clamp tp 10mm csa
7.5kVA 40A 40A 40A 1 cage clamp tp 10mm csa
10kVA 63A 50A 50A 1 lugg, 6mm stud
12.5kVA 63A 63A 63A 1 lugg, 6mm stud
15kVA 100A 80A 80A 2 lugg, 6mm stud
20kVA 100A 100A 100A 2 lugg, 6mm stud
22.5kVA 125A 100A 100A 2 lugg, 6mm stud
25kVA 125A 125A 125A 2 lugg, 6mm stud
Cabinet Size
Cabinet size 1 = 355(w) x 280(h) x 175(d)
Cabinet size 2 = 550(w) x 550(h) x 205(d)
Cabinet size 3 = 650(w) x 800(h) x 240(d)
NB.* Some options will require that a larger case size be specified.

Important. Minimum cable sizes are given for reference only. Please consult a qualified electrician or the PowerWorks for specific installations.