BCU-02 BCU-12 ABB High voltage frequency conversion acs580 CPU control board

BCU-02 BCU-12 ABB High voltage frequency conversion acs580 CPU control board

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The custom designed, explosion proof enclosure consists of a cylindrical shaped

cast aluminum housing, powder coated, with front and rear end caps for access to

internal components. Figure 1—4 through Figure 1—7shows the outline

dimensions of the NGC.

The end caps have precision engineered threading and are susceptible to damage

if treated roughly. Enclosure and all fittings, including feed-through, MMI

connection and breather are tested to Nema/Type 4X. Unauthorized removal of

the end caps are protected with a 1/16” hex socket set screw on each end cap.

This enclosure may be pipe mounted on meter run using a pipe saddle, stand

alone pipe mounted, shelf mounted or optionally mounted in a cold weather

enclosure. Unit may be directionally positioned using 1/8” hex socket set screws

located in the neck of the enclosure.

1.3.2.1 Exterior Hubs

The unit enclosure features six exterior hubs:

• Gas Feed-Through Assembly

• Explosion Proof Local MMI Port

• Four Miscellaneous Hubs, Including:

ƒ Communication Hub

ƒ Power Hub

ƒ Digital Input/Output Wire Hub

ƒ Undefined Hub