
MNL000443.doc
Revision 00
09/19/2016
© Versum Materials, Inc. as of the revision and date shown. All rights reserved.
Confidential and Proprietary Data
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4.2
Power Supply Connection
Each GASGUARD System should be installed with an independent external circuit
interrupting device to remove power from the unit when maintenance on the controller
is required. The device should be Lockout/Tagout capable. This device should be
rated as a minimum at 240 volts, 3 amps, 50/60 Hz and 10,000 rms symmetrical
ampere interrupting capacity. The device should be accessible to the operators, marked
as the disconnecting device for the distribution system, and must have the on/off
position clearly marked for the operator.
The power input must be wired to the terminals shown below. For additional detail on
the power connection, see Figure 4.4.
Terminal Connector
Ground
Circuit Breaker
Surge Protection
Device
Terminal Connector
Neutral
Circuit Breaker Line
Connection
Figure 4.3:
Inside View of GASGUARD APx Controller