Installation

2.3.2Connecting to External Panel Boards

The following instructions are also shipped attached to the rear of the unit.

INPUT CABLING AND PROTECTION

Table Below Applies to 12-20kVA Scalable Systems:

Stand-alone UPS or

UPS equipped with a Maintenance Bypass Cabinet (Without Transformer)

 

Input Voltage – 208VAC

Input Voltage – 240VAC

 

Max. Current

Recommended

Max. Current

 

Recommended

Max. System

Input Protection

 

Input Protection

in UPS mode

in UPS mode

 

Load Rating

Circuit Breaker

 

Circuit Breaker

 

 

 

 

 

 

 

 

 

12kVA

53 amps

75 amps

46 amps

 

75 amps

 

 

 

 

 

 

16kVA

70 amps

100 amps

62 amps

 

100 amps

 

 

 

 

 

 

20kVA

102 amps

125 amps*

88 amps

 

125 amps*

 

 

 

 

 

 

Terminal

 

Maximum: 35mm2 (2AWG)

* Must use 90° copper

wire

 

Block

 

Minimum: 16mm2 (6AWG)

 

Details

 

Torque Rating: 2.5-3.0Nm (22-26in/lbs)

 

 

 

 

 

 

 

UPS With Maintenance Bypass Cabinet (With Transformer)

Single Input Feed: All UPS ratings must use 125A input circuit breaker protection.

Dual Input Feed: See table below.

 

 

 

UPS Feed

 

Bypass Feed

 

 

 

 

 

 

Input Voltage – 208VAC

Input Voltage – 240VAC

208V or 240V

 

 

 

 

 

 

 

Max. System

Max. Current

Recommended

Max. Current

 

Recommended Input

Recommended

Input Protection

 

Input Protection

Load Rating

in UPS mode

Circuit Breaker

in UPS mode

 

Protection Circuit Breaker

Circuit Breaker

12kVA

53 amps

75 amps

46 amps

 

75 amps

125 amps*

 

 

 

 

 

 

 

16kVA

70 amps

100 amps

62 amps

 

100 amps

125 amps*

 

 

 

 

 

 

 

20kVA

102 amps

125 amps*

88 amps

 

125 amps*

125 amps*

 

 

 

 

 

 

Terminal

 

Maximum:

35mm2 (2AWG)

* Must use 90° copper wire

 

Block

 

 

Minimum: 16mm2 (6AWG)

 

Details

 

Torque Rating: 2.5-3.0Nm (22-26in/lbs)

 

 

 

 

 

 

 

 

 

Bypass Voltage Jumper Position (TB2)

 

 

 

 

 

 

Bypass Voltage Selection

208 VAC

240 VAC

(Factory Default)

(Field Change)

 

 

 

Jumper/link on upper two screws

Jumper/link on lower two screws

13

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Image 17
Emerson 240V, 208 user manual Connecting to External Panel Boards, Bypass Voltage Jumper Position TB2