990-91376A-001

Specifications

Maximum Short Circuit Rating

The maximum short circuit rating for the maintenance bypass cabinet is 65 kA RMS symmetrical Icc.

CAUTION
HAZARD OF CABLE MOVEMENT IN SHORT CIRCUIT CONDITIONS
In systems over 35 kAIC it is mandatory to restrain the power cables:
  • Use 10 mm nylon rope or rope with a minimum tensile strength of 1000 kg (2204.62 lbs).
Failure to follow these instructions can result in injury or equipment damage.

Trip Settings

UPS rating Breaker type UIB SSIB/MBB/UOB
Ir Tr @ 6 Ir Ii (x In) Ir Tr @ 6 Ir Ii (x In)
250 kW PJF36120CU33A 0.4 1 6

0.3

0.5

6
300 kW PJF36120CU33A 0.4 1 6

0.3

0.5

6
350 kW PJF36120CU33A 0.5 1 6

0.4

0.5

6
400 kW PJF36120CU33A 0.5 1 6

0.4

0.5

6
450 kW PJF36120CU33A 0.6 1 6

0.5

0.5

6
500 kW PJF36120CU33A 0.7 1 6

0.5

0.5

6

Recommended Upstream Protection

Refer to the UPS installation manual for recommended upstream protection.

Recommended Cable Sizes

DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
All wiring must comply with all applicable national and/or electrical codes. The maximum allowable cable size is 500 kcmil.
Failure to follow these instructions will result in death or serious injury.

Refer to the UPS installation manual for recommended cable sizes.

Recommended Bolt and Lug Sizes

NOTICE
risk of equipment damage
Use only UL approved compression cable lugs.
Failure to follow these instructions can result in equipment damage.

Copper

Cable size Bolt size Cable lug type (one hole) Cable lug type (two hole NEMA) Crimping tool Die
1/0 AWG M10x35mm

LCB1/0-12-X

LCC1/0-12-X

CT-930

CD-920-1/0 Pink P42

2/0 AWG M10x35mm

LCB2/0-12-X

LCC2/0-12-X

CT-930

CD-920-2/0 Black P45

3/0 AWG M10x35mm

LCB3/0-12-X

LCC3/0-12-X

CT-930

CD-920-3/0 Orange P50

4/0 AWG M10x35mm

LCB4/0-12-X

LCC4/0-12-X

CT-930

CD-920-4/0 Purple P54

250 kcmil M10x35mm

LCB250-12-X

LCC250-12-X

CT-930

CD-920-250 Yellow P62

300 kcmil M10x35mm

LCB300-12-X

LCC300-12-X

CT-930

CD-920-300 Red P66

350 kcmil M10x35mm

LCB350-12-X

LCC350-12-X

CT-930

CD-920-350 Red P71

400 kcmil M10x35mm

LCB400-12-X

LCC400-12-6

CT-930

CD-920-400 Blue P76

450 kcmil M10x35mm

LCC450-12-6

CT-930
500 kcmil M10x35mm

LCB500-12-X

LCC500-12-6

CT-930

CD-920-500 Blue P87

Aluminum

Cable size Bolt size Cable lug type (one hole) Cable lug type (two hole NEMA) Crimping tool Die
1/0 AWG M10x35mm

LAA1/0-12-5

LAB1/0-12-X

CT-930

CD-920-1/0 Pink P42

2/0 AWG M10x35mm

LAA2/0-12-5

LAB2/0-12-5

CT-930

CD-920-2/0 Black P45

3/0 AWG M10x35mm

LAA3/0-12-5

LAB3/0-12-5

CT-930

CD-920-3/0 Orange P50

4/0 AWG M10x35mm

LAA4/0-12-5

LAB4/0-12-5R

CT-930

CD-920-4/0 Purple P54

250 kcmil M10x35mm

LAA250-12-5

LAB250-12-5

CT-930

CD-920-250 Yellow P62

300 kcmil M10x35mm

LAA300-12-2

LAB300-12-2

CT-930

CD-920-300 Red P66

350 kcmil M10x35mm

LAA350-12-2

LAB350-12-2R

CT-930

CD-920-350 Red P71

400 kcmil M10x35mm

LAB400-12-2

CT-930

CD-920-400 Blue P76

500 kcmil M10x35mm

LAA500-12-2

LAB500-12-2R

CT-930

CD-920-500 Blue P87

Torque Specifications

Bolt size Torque
M6 5 Nm (3.69 lb-ft / 44.3 lb-in)
M8 17.5 Nm (12.91 lb-ft / 154.9 lb-in)
M10 30 Nm (22 lb-ft / 194.7 lb-in)
M12 50 Nm (36.87 lb-ft / 442.5 lb-in)

Maintenance Bypass Cabinet Weights and Dimensions

Commercial reference Weight kg (lbs) Height mm (in) Width mm (in) Depth mm (in)
GVLMBCA200K500G 158 (348) 1970 (77.55) 500 (19.68) 847 (33.34)

Clearance

NOTE: Clearance dimensions are published for airflow and service access only. Consult with the local safety codes and standards for additional requirements in your local area.

Front View of the Maintenance Bypass Cabinet and the UPS

Environment

  Operating Storage
Temperature 0 °C to 40 °C (32 °F to 104 °F ) -25 °C to 55 °C (-13 °F to 131 °F)
Relative humidity 0-95% non-condensing 0-95% non-condensing
Protection class IP20
Color RAL 9003, gloss level 85%

System Overview

UIB Unit input breaker
SSIB Static switch input breaker
MBB Maintenance bypass breaker
UOB Unit output breaker

Single Mains UPS System

Dual Mains UPS System

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