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Home >  Multiple Level Terminal Blocks With Electronic Components > Terminal Blocks with Suppression Diodes

Terminal Blocks with Suppression Diodes

The DAS.4/D type of multiple level terminal block is equipped with a suppressor diode connected between the upper and lower levels and can be used to restrict voltage peaks due to surges, static discharge or inductive load switching.  The suppresser diode has a response time of <1ns, which is much lower than that of varistors (typically 25ns) and a lower, more accurate, response voltage.  However, compared to varistors they withstand lower discharge currents.  The high precision of the trip voltage and the high speed makes them suitable for protecting I/O signal inputs of PLC's, DCS systems and PC's against discharge current and voltage interference below 500A pulse 8/20ms.  ASI offers a range of multiple level terminal blocks equipped with suppressor diodes from 5 volts DC to 60 volts DC.

The DAS.4/D can be wired into a circuit to provide effective protection against either differential mode (diagram 4,5) or common mode (diagram 6) interference 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 suppressor diode models of terminal blocks ASI offers a wide range of multiple level terminal blocks equipped with varistors to protect against higher discharge currents.

Multiple level terminal blocks are also available which allow 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.
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View Associated Products Below to Complete Your Project
Catalog No. / Description 
DSD005GR Product
Screw Clamp Connection 2-Level DIN Rail Mounted Terminal Block With Electronic Component
  • 2-level terminal block with bi-directional suppressor diode between upper and lower level.
  • Rated at 5 volts, with a max clamping voltage of 11 volts and response time <1ns
Type DAS.4/D5/GR, Screw Clamp Connection 2-Level DIN Rail Mounted Terminal Block with Electronic Component, 5 VDC suppression diode between levels, 20-12 AWG, Gray 
List Price
$10.37 each
Packages of 20
 
Ships Stock - 4 weeks
Type DAS.4/D12/GR, Screw Clamp Connection 2-Level DIN Rail Mounted Terminal Block with Electronic Component, 12 VDC suppression diode, 20-12 AWG, Gray 
List Price
$10.37 each
Packages of 20
 
Ships Stock - 4 weeks
DSD024GR Product
Screw Clamp Connection 2-Level DIN Rail Mounted Terminal Block With Electronic Component
  • 2-level terminal block with bi-directional suppressor diode between upper and lower level.
  • Rated at 24 volts, with a max clamping voltage of 41 volts and response time <1ns
Type DAS.4/D24/GR, Screw Clamp Connection 2-Level DIN Rail Mounted Terminal Block with Electronic Component, 24 VDC suppression diode, 24-10 AWG, Gray 
List Price
$10.37 each
Packages of 20
 
Green Check In Stock
DSD060GR Product
Screw Clamp Connection 2-Level DIN Rail Mounted Terminal Block With Electronic Component
  • 2-level terminal block with bi-directional suppressor diode between upper and lower level.
  • Rated at 60 volts, with a max clamping voltage of 113 volts and response time <1ns
Type DAS.4/D60/GR, Screw Clamp Connection 2-Level DIN Rail Mounted Terminal Block with Electronic Component, 60 VDC suppression diode, 24-10 AWG, Gray 
List Price
$10.37 each
Packages of 20
 
Ships Stock - 4 weeks

Customers using ASI Terminal Blocks with Suppression Diodes Also Saved Time and Money with:

Signal ConditionersComplete line of DIN rail mounted signal conditioners. From analog converters to threshold modules, we have what your application needs.
Interface ModulesBroad range of DIN rail mounted modules that provide EZ wiring transitions from various types of connectors to fixed or pluggable terminal blocks. Custom modules available.
DIN rail cutter 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.
Print SystemsIn seconds print markers and labels. Easy to use and reliable. Learn how ASI Marking and Labeling systems can save you time and money.
Rail Assemblies Reduce your inventory and labor cost with ASI DIN rail assemblies. See how ASI DIN rail assemblies can make it EZ for you.
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Automation Systems Interconnect, Inc. • 4700 Westport Drive, Suite 500 • Mechanicsburg, PA • 17055

Remit To:  P.O. Box 1340 • Mechanicsburg, PA • 17055
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