When M coil energizes, only the first M contact changes position.
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If R coil energizes, all R contacts change position.
If R coil energizes, all R contacts change position.
____________________ push buttons combine the operation of a…
____________________ push buttons combine the operation of a selector switch and push button in the same unit.
Integral horsepower manual starters with low voltage release…
Integral horsepower manual starters with low voltage release will restart automatically after a power failure without being reset.
When one side of the secondary winding of a control transfor…
When one side of the secondary winding of a control transformer is grounded, the control system is referred to as a(n) ____________________ system.
Magnetic type overload relays are sensitive to ambient tempe…
Magnetic type overload relays are sensitive to ambient temperature.
High voltage surges are harmless and cannot damage electroni…
High voltage surges are harmless and cannot damage electronic components connected to the power line.
Protection can be placed on the primary or secondary side of…
Protection can be placed on the primary or secondary side of the control transformer.
Starters that are intended to protect motors that operate on…
Starters that are intended to protect motors that operate on 240 volts should contain four load contacts.
Many industries prefer to ground the control system and it i…
Many industries prefer to ground the control system and it is a very common practice.