The DAS.4/V type of multiple level terminal block is equipped with a varistor connected between the upper and lower levels and can be used to restrict voltage peaks due to surges, static discharge, and inductive load switching. The varistors have a response time of 20-25ns, which is longer than that of the suppressor diodes, <1ns, with a higher response voltage and withstanding higher discharge currents. The ability to withstand a higher discharge current makes them suitable for uses with strong transients, with currents up to 4500A pulse 8/20ms. ASI offers a range of multiple level terminal blocks equipped with varistors from 24 volts to 230 volts so they can be used to protect signal and power supply circuits.
When the DAS.4/V is used it can provide effective protection against differential mode interference (diagram 2) for inputs and outputs of industrial PLC's, DCS systems and PC's, signal conditioners and sensors and also for power supply units of electronic equipment in general.
In addition to the above mentioned varistor models of terminal blocks ASI offers a wide range of multiple level terminal blocks equipped with diodes. Each model can be used for a specific purpose such as protection against power supply reversal, lamp test circuits, blocking excess current from solenoids, relays, etc.
Multiple level terminal blocks are also available which allow for the customer to add their own components, or for ASI to add components selected by the customer. There are also blocks and housings which can be used to add a small printed circuit board which may be designed with a more complete circuit. These same products are also available with both electromechanical and solid state relays. Check the factory for specific details. 1(877)-650-5160.
ASI's broad range of marking products will save you both Time and Money. They include terminal block labels, wire markers, name plates, and much more Learn More...
View Associated Products Below to Complete Your Project
Catalog No. / Description
Screw Clamp Connection 2-Level DIN Rail Mounted Terminal Block With Electronic Component
The bench-top DIN rail cutter from ASI quickly cuts all major types of DIN rail, comes with a steel rule measuring device for setting up multiple cuts of the same length and features a hardened steel cutting die for long life. It cuts the DIN rail clean so burrs are eliminated and the long actuation lever insures that anyone can cut the DIN rail. It is half the price of comparable DIN rail cutters now on the market.