Control Switch Relay allows time-delayed trip/close.
October 14, 2011 -
By allowing manually initiated time-delayed trip or close, Model TD-CSR provides safe means of mitigating arc flash danger in local circuit breaker operation. Flashing LED notifies operator of pending trip or close operation and serves as warning to evacuate arc flash area. Once local trip or close is initiated, 10-sec delay allows operator time to cancel pending operation. To avoid inadvertent operation, control pushbuttons must be depressed for 4 continuous seconds to activate 10-sec delay.
Original Press release
Electroswitch, Unit Of Electro Switch Corp.
180 King Ave.
Weymouth, MA, 02188 2913
USA
Control Switch Relay Allows Time-Delayed Trip/Close for Unmatched Arc Flash Safety
WEYMOUTH, MA - A new Time Delay Control Switch Relay (TD-CSR) from Electroswitch provides a safe and effective means of mitigating arc flash danger in local circuit breaker operation by allowing for a manually initiated time-delayed trip or close. A flashing LED notifies the operator of the pending trip or close operation and serves as a warning to evacuate the arc flash area. By allowing an operator time to leave the room before the trip or close operation, the TD-CSR affords the operator the same safety from arc flash as a SCADA system - at a small fraction of the price.
Once a local trip or close is initiated, the 10-second delay allows an operator time to cancel the pending operation. To avoid any chance of an inadvertent operation, the control pushbuttons must be depressed for 4 continuous seconds to activate the 10-second delay. Other delay time options are available. The unit's intuitive pushbutton design simplifies personnel training. No special wiring is required for installation.
The TD-CSR is available with the same reliable features and options as the field-proven Electroswitch Control Switch Relay. These features include a standard mechanical target ("flag") to show the last operating position and an optional lighted nameplate. The nameplate includes local LED indication, a remote SCADA contact alarm, and a single or dual trip-coil monitoring option.
Reliable, self-cleaning, double-wiping contacts with silver or silver-alloy surfaces provide very low contact resistance for low-level control applications. Rugged, standard screw-type terminals have a 30A/600V continuous-current rating. The TD-CSR meets the same IEEE C37.90 series standards as all other Electroswitch relay products, confirmed by periodic in-house testing.
Electroswitch is the industry leader in the design, manufacture, and marketing of robust, high-quality switches, relays, and other related electrical products for utility, industrial, and military applications. In addition to offering a full line of quality products, Electroswitch has both the willingness and the proven ability to modify, custom design, and qualify switches and relays for virtually any application or environment. Electroswitch prides itself on meeting customer delivery requirements, no matter how stringent.
For more information, contact Customer Service, Electroswitch, 180 King Avenue, Weymouth, MA 02188, TEL: (781) 335-5200, FAX: (781) 335-4253, E-mail: info@electroswitch.com, Web: www.electroswitch.com.
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