When a SENSING-SAF-START® is installed on any equipment and there is an electrical power interruption to the equipment, the SENSING-SAF-START® will open the circuit so when the power source is restored, the SENSING-SAF-START® will prevent the equipment from restarting. The SENSING-SAF-START® will not reset until the equipment switch has been turned "off". There is a sensing circuit within the new SENSING-SAF-START® that sends a signal up to the equipment switch to see if it is in the "on" position. If the switch is still "on", the SENSING-SAF-START® sounds a warning buzz when the reset button is depressed, and it will not close the circuit until the equipment switch is turned "off". Then, and only then, the SENSING-SAF-START® will close the circuit, so the equipment will operate again.
Technical Details: 200 to 240-Volt A.C. (Single Phase), 50/60 HZ, 15-Amp Maximum
Description: Use on all 200 to 240-volt single phase (3 wire) machines. You must install any matching plugs on the power cord.
The easy to install and inexpensive solution to the O.S.H.A. anti-automatic restart requirement, without the high cost of magnetic motor starters.
(U.S. Occupational Safety and Health Administration 29 CFR #1910.213. (b) (3)*)
"On applications where injury to the operator might result if motors were to restart after a power failure, provisions shall be made to prevent machines from automatically restarting upon restoration of power." *Electrical Controls for Wood Working Machinery
(Electrical Standard for Industrial Machinery, 2002 Edition)
"7.5.3 Restarting. Upon restoration of the voltage or upon switching on the incoming supply, automatic or unintentional restarting of the machine shall be prevented when such a restart can cause a hazardous condition." And Annex A: "A.3.3.104 Undervoltage Protection. The principal objective of this device is to prevent automatic restarting of the equipment."
(NFPA 70: National Electrical Code, International Electrical Code Series)
430.43 Automatic Restarting. . . . A motor overload device that can restart a motor automatically after overload tripping shall not be installed if automatic restarting of the motor can result in injury to persons.
CSA C22. 1-98
(Canadian Electrical Code Part 1, 28-400 (a) undervoltage protection required for motors)
"When automatic restarting is liable to create a hazard, the motor control device shall provide low-voltage protection."
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