Rockwell Automation Publication 22C-IN002E-EN-P - November 2010
Chapter 2
3 Contactor Full Feature Bypass with
Disconnect Package
(Style B/N)
Style Explanation
• Style B = Fused Disconnect
• Style N = Circuit Breaker
Chapter Objectives
This chapter describes the features and operation for the 3 Contactor Full
Feature Bypass with Disconnect Package (Style B/N).
Hardware Overview
The 3 Contactor Full Feature Bypass with Disconnect Package (Style B/N)
allows the motor to be manually transferred from drive output to the AC
line, or from the AC line to the drive, while the motor is at zero (0) speed.
The contactor bypass is electrically interlocked. A means for disconnecting
input power via a door interlocked fuse disconnect switch is standard. In
addition, this package is supplied with a bypass control interface which
provides status indication and allows for remote activation of the bypass
circuit.
Main Disconnect Switch (DS1)
An Allen-Bradley Bulletin 194R fused disconnect switch with lockable
rotary mounted operator handle is provided. The disconnect switch is
designed to meet disconnect switch requirements for branch circuit
protection. The door-mounted handle accepts up to three (3) padlocks.
Main Circuit Breakers (CB1)
An Allen-Bradley Bulletin 140U circuit breaker with lockable rotary
mounted operator handle is provided. The circuit breaker is designed to
meet circuit breaker requirements for branch circuit protection. The
door-mounted handle accepts up to three (3) padlocks.
For information on … See page …
Hardware Overview
2-1
Electrical Installation 2-6
Operating Modes 2-10
Parameter Defaults 2-11
Drawing Index 2-12
Schematic Drawings 2-15
Interconnect Drawings 2-31
Layout Drawings 2-37
Outline Drawings 2-71
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