Expansion units are used to accommodate the expansion and contraction of a busbar system as well as allow for building movement. They allow for a 40mm movement along the length of the busbar.

Expansion units are recommended when a straight busbar run exceeds 60m.

Unit of Measure

Type

N/A Expansion Unit

Construction Type

N/A Single

Application

N/A Indoor

Material

N/A Painted Copper

Series

N/A HPB UL

Mounting Type

N/A Edge Installation

Configuration

N/A TPHE

Industry Standards

N/A UL

Certification Marks

N/A UL857

Conductor Material

N/A Copper

Ambient Temperature [Max]

N/A 65 ºC

Number of Poles

N/A 3.5

Busbar Rating

N/A 1200 A

Frequency

N/A 50/60 Hz

Degree of Protection

N/A IP55 (up to IP67 upon request)

Conductor

N/A 60

Rated Operational Voltage

N/A 600 V

Rated Insulation Voltage

N/A 600 V

Short Circuit Rating [6 Cycle]

N/A 100 kA

Phase Conductor - Cross Sectional Area

N/A 0.56 in²360 mm²

Neutral Conductor - Cross Sectional Area

N/A 0.56 in²360 mm²

Isolated Earth Conductor - 100% Earth Cross Sectional Area

N/A 360 mm²

Isolated Earth Conductor - 50% Earth Cross Sectional Area

N/A 180 mm²

Housing Ground Path Cross Sectional Area

N/A 1880 mm²

Resistance at 68°F

N/A 1.098 mΩ/100·ft

Total Length

N/A 1295 mm

Busbar Width

N/A 5.83 in148 mm

Busbar Height

N/A 4.65 in118 mm

Height

N/A 209.8 mm

Width

N/A 505 mm