Contact Relay helps eliminate switching risks.
Press Release Summary:
Measuring 2.165 x .65 x .63 in. tall, PC board mount SCHRACK V23050 series relay employs forcibly-guided contacts and is designed so that its make and break contacts cannot be in closed position simultaneously. Design isolates each contact set within its individual contact chamber. Contacts are offered in 3 NO:NC ratios: 4:2, 2:4, and 5:1. Silver tin oxide contacts are rated for 8 A loads at 250 Vac, and relay is offered with coils for 5-110 Vdc.
Original Press Release:
Forcibly-Guilded Contact Relay Helps Eliminate Switching Risks
HARRISBURG, PA - May 20, 2003 - Tyco Electronics is expanding the firm's line of relay products with the SCHRACK V23050 series relay. The SCHRACK V23050 series relay, also known as the SR6, from Tyco Electronics has forcibly-guided contacts to help minimize switching issues. A product such as this is sometimes referred to as a "safety relay." It is designed such that its "make" and "break" contacts cannot be simultaneously in the closed position, even in the event of a major malfunction such as contacts welding or a contact spring breaking.
Primary applications that might require the SR6's capabilities include elevator and escalator control systems. Other applications include "emergency stop" controls, light (photoelectric) curtains and safety controls for industrial machinery such as presses and saws.
The design isolates each of the SR6's six contact sets within its own individual contact chamber. Users may choose from models with four normally open (NO) and two normally closed (NC) contacts, two NO and four NC contacts or five NO and one NC contact. The silver tin oxide contacts are rated for 8 amp loads at 250 volts AC.
At 2.165 x .65 x .63 inches tall (55 x 16.5 x 16 mm), the PC board mount SR6 is significantly more compact than previous designs; however, it still offers excellent dielectric withstand characteristics. Surge resistance between poles is 6kV. Both clearance and creepage distances are 5.5 millimeters from coil-to-contacts and between adjacent contacts.
Standard SR6 relays are offered with coils for 5 - 110 volts DC and require 1200 milliwatts of coil power. A sensitive version, the SR6S, is offered with polarized coils for 5 - 48 volts DC and requires one-third less coil power at just 800 milliwatts.
An SR6 with three NO contacts, three NC contacts and a standard 24 volt DC coil is priced at $9.17 each in 1,000 piece quantities. Deliveries are typically 8 - 10 weeks.
For more information on SCHRACK SR6 relays from Tyco Electronics, contact Tyco Electronics' technical support center at 1-800-522-6752 or send e-mail to newproducts@tycoelectronics.com. More information on the web at www.tycoelectronics.com
ABOUT TYCO ELECTRONICS
Tyco Electronics is the world's largest passive electronic components manufacturer; a world leader in cutting-edge wireless, active fiber optic and complete power systems technologies; and is also rapidly developing extensive networking and building technology installation services. Tyco Electronics provides advanced technology products from over forty well-known and respected brands, including Agastat, Alcoswitch, AMP, AMP NETCONNECT, Buchanan, CII, CoEv, Critchley, Elcon, Elo TouchSystems, M/A-COM, Madison Cable, OEG, OneSource Building Technologies, Potter & Brumfield, Raychem, Schrack, Simel and TDI Batteries.
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