Rockwell Automation 1608P ProDySC User Manual, 25 and 50 A - Manual (Page 10)

10 Rockwell Automation Publication 1608P-UM001A-EN-P - July 2013
Chapter 2 Installation
Bypass Switch Installation of the ProDySC with an external maintenance bypass is required to
avoid power interruptions to the critical loads during maintenance, service, or
testing. Mount the bypass close to the ProDySC to provide quick access and
visual coordination when testing or providing service. The 1608P bypass is a wall
mounted enclosure with a 3 position rotary switch. Its dimensions and mounting
locations are shown in
Figure 3 .
Figure 3 - 25A and 50A bypass mounting dimensions
Bypass Switch Modes The 1608P bypass switch has three modes of operation and is configured as
shown in
Figure 4
Figure 4 - Bypass switch and mode operation
NORMAL Mode - Power flows from the utility source
through the ProDySC to the load.
TEST Mode - Power flows directly from the utility to
the load. ProDySC outputs are not connected to the
load. ProDySC inputs have power provided for testing
by a qualified technician.
BYPASS Mode - Power flows directly from the utility
to the load. No power is present on ProDySC inputs or
outputs.
NOTICE: The 1608P bypass switch contacts are designed to make-before-break and will not
disrupt power to the load during any mode transitions. The switch has lockout/tagout (LOTO)
provisions.
12.00
305
16.75
425
4X .30
8
14.00
356
8.00
203
17.50
445