User guide

Rockwell Automation Publication 23C-IN001B-EN-P - June 2013 85
Chapter 2
3 Contactor Full Feature Bypass with Disconnect
Package (Style B/N)
This chapter describes the features and operation for the 3 Contactor Full
Feature Bypass with Disconnect Package (Style B/N).
Style Explanation
• Style B = Fused Disconnect
• Style N = Circuit Breaker
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.
Topic Page
Hardware Overview 85
Electrical Installation 90
Operating Modes 94
Parameter Defaults (Style B/N) 95
Drawing Index 96
Schematic Drawings 99
Interconnect Drawings 115
Layout Drawings 120
Outline Drawings 157