Pragati Electronics
Thane, Maharashtra

Door Interlock System

We are manufacturer and supplier of Door Interlock System. We have a variety of options in our Door Interlock Systems. Such as Electro Magnatic Door Interlock System,Flameproof Electromagnatic Lock, Flameproof Door Lock, Drop Bolt Lock, Hotel Door Lock ..etc These systems are easy to install and provide complete security. These system is mainly used in pharma industries, Laboratories, API Plant, Chemical and Gas industries. We provide our valuable clients installation solution and service too..We have two types of solutions like, Microprocessor based and PLC based. We are using SMPS in our control pannel to avoid input supply fluctuation.

Door Interlock Switches

Our door interlock system comes with various features such as:


  • Easy and quick installation
  • Available in soft touch key - board, contact less I/R reader, Biometric thumb reader or with access card reader as per application demands.
  • Advanced design as per clean room concept.
  • Maintenance free control panel with reliable and easily available components
  • Emergency mode can only be manually reset to be able to defeat interlocking system as per safety norms.


Powerful electromagnet or door latch available as per requirement Operation of door interlock system Normally all doors remain closed. To open any door:


  • Press green push button if soft touch keyboard is available at door.
  • Show your card if Access card is installed at door
  • Show your pre-programmed fingered key if Biometric reader is installed at door.

Swipe your hand near to key if I/R based keyboard is installed at door. Door holding magnet will be de energized and door will be released. Time period of door released by default is 5 seconds. Next door will not open until and unless first door is closed properly. In case of emergency situations press any emergency push button to release all doors immediately.


The soft touch key board has the following indications:


  • Green indication glows: door is open
  • Red indication glows: opposite door is open.
  • Blinking of Red & Green indication: Emergency switch is pressed. Soft touch keyboard also incorporate high db Door Interlock System piezo buzzer given following signals.
  • Buzzer beeps short time at even keystroke.
  • Buzzer continuously sound if any door remain open for more than 10 seconds.
  • Buzzer beeps pulsating if emergency switch is pressed and remains beeping until it is pressed again.

Drop Bolt Lock

We deal in high quality drop bolt locks with following specifications:


  • Operating Voltage: 12 VDC
  • Current Taken: 900 mA Feedback Sensor available on request
  • Material: Aluminum for drop bolt locks

Hotel Door Lock

These are suitable for holiday resorts and village, hotel, company and hospitals.


  • Exclusive "Xeeder" Single chip control project
  • Siemens SLE4442 IC card, 100,000 times life
  • Power: 4 pcs AA battery Inside Dead Bolt Ansi
  • Standard 5 latch mortise (custom design available)
  • Low Battery Voltage warning
  • Normal open state can be set for meeting
  • Lock & System operation record printable


Pragati Electronics

Mr. Pradeep Budbadkar (Proprietor)
G- 320, J. M. Nagar Complex C. H. S., P. Dindayal Road, Anand Nagar, Dombivli West
Thane - 421202
Maharashtra, India
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