
Section 1
WARNINGS
REFER TO WARNINGS BELOW BEFORE OPERATING THE 5971-160 REVERSAL
SWITCH
2.1 - Personal Safety
Never service alone
. Do not perform service to the 5971-160 Reversal Switch and associated
DC Power Supply unless another person is present who is capable of rendering first aid.
The output from the model 5971-160 Reversal Switch and its DC Power Supply is potentially
lethal. It is capable of delivering high voltages at high current. Do not remove protective covers
or leave cable terminations exposed. Do not operate if terminals or cables are damaged.
2.2 - Current Connections
Special care should be taken to insure that the current terminations are secure and do not work
loose in operation. Local heating at the terminations can cause rapid oxidation leading to a high
contact resistance and high power dissipation at the terminals. If left unchecked this can cause
enough local heating to damage or destroy the current connection terminals.
2.3 - Interlocks
The 5971-160 Reversal Switch has interlock connections between the DC Power Supply and the
Electromagnet load. The interlocks must be connected for proper system functioning and
protection of the equipment, facility and to protect against personal injury. Attempting to
operate the system with the interlocks defeated is not recommended and will void the warranty.