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The GE-Emerson IC660BBS103 Genius 8-Circuit Isolated I/O Block is designed for applications where field wiring such as manual switches will be wired in parallel with block outputs. These blocks ignore differences between an output's commanded state and the actual state of the block's internal switch.
Isolation is rated to withstand 250 VAC/VDC continuous between any group and ground or between any two groups. Transient rating is 2000V peak for 10 sec.
Control power for the block is tapped off the input/output device voltages wired to the terminals. The block has terminals for a separate power source for the internal electronics. The block power supply can be independently either AC or DC. The block need not be powered in the same manner as the circuits.
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