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10 million mechanical operations (minimum)
the output will not energize
the 4481 will not allow the load to be energized
If either start sensor is continuously energized (“tied down”)
Time ranges are the same as 3381
TB-1 Start Bar 4487 10 million mechanical operations (minimum)The TB 1 Start Bar is an ergonomic starting system used to reduce operator stress that can lead to carpal tunnel syndrome. It uses electronic sensors that require no pressure to actuate. An internal anti tie down control monitors both hand sensors for concurrent operation. The output is comprised of redundant positive guided relays which are monitored to ensure proper operation.
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