Styrax Instruments India Private Limited
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Door Interlocking System

The door interlocking system is used to control the entry of personnel to a secure area such as a clean room, where dust or small particles may be a problem. The principle is generally well under-stood. In its simplest form, the door interlocking is composed of 2 to 12 doors that are electrically interlocked in such a way that the all doors cannot be opened simultaneously. The door interlocks are used in a variety of situations but in essence they are there to control the unwanted passage from one area to another.

Door Inter Locking System achieves in prevention of process area contamination by :


  • Preventing simultaneous access of doors/Rooms.
  • Ensures that when one door for a room is OPEN then all other doors in that particular room are closed.
  • Programmable delay between each door openings to maintain required pressure.
  • In Emergency an override key is available on a push button module for opening the door.

Door Interlocking System


Door Interlocking System
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Product Brochure
Product Details:
BrandStyrax Instruments
Power30 W
Voltage230 V AC
Current5 A
Surface FinishMS Powder Coated
Frequency50 Hz
Operating Temperature0-50 deg C

We are engaged in offering our clients a wide range of 2 Door Interlock System under Door Interlocking Systems.


  • Advanced micro controller based system
  • It supports up to 2 doors
  • Recovery pressure can be gained by providing time delay from 0 to 90 sec by jumper setting
  • Door status indication with GO, WAIT message display
  • Emergency station is provided to unlock all doors in emergency
  • Inbuilt sensor magnetic lock to read door feed back
  • Relay status indication with high intensity led
  • The auto lock time between door openings is 4 sec
  • Supports fire alarm module interface
  • Weather proof control box
  • Provided long life bar LED
  • Supports access control module interface
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Ram Bandi (Sales Director)
Styrax Instruments India Private Limited
H. No. 2-77, Gajularamaram
Hyderabad - 500014, Telangana, India
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