2–18
MM200 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL
ELECTRICAL INSTALLATION
CHAPTER 2: INSTALLATION
It may be required to test a complete motor starter for dielectric strength (“flash” or “HI-
POT”) with the MM200 installed. The MM200 is rated for 1.9 kV AC for 1 second, or 1.6 kV AC
for 1 minute (per UL 508) isolation between relay contacts, CT inputs, VT inputs and the
surge ground terminal SG. Some precautions are required to prevent damage to the
MM200 during these tests.
The CT inputs, control power, and output relays do not require any special precautions.
Low voltage inputs (less than 30 volts), RTDs, and RS485 communication ports are not to be
tested for dielectric strength under any circumstance (see above).
Содержание MM200
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