ReviewsNormally Closed Valves

10 Pack 30/40 AMP Waterproof 5-Pin 12V Relay Switch （SPDT）for 12 Volt Automotive Marine Relays for Boats Auto Fan Cars

  • 12V waterproof 5-Pin SPDT Relay Excellent waterproof and dustproof ability, high quality in any weather conditions.
  • 12V 5-Pin SPDT Relay Pin Specifications: Ground (85), VDC (30), Trigger (86), Output N/C (87a), and Output N/O (87)..
  • SPDT Relay with 40A/30A High Switching Capability,it has both normally open and normally closed terminals, terminal 87A is powered when the relay is inactive and switches the power to terminal 87 when the relay is activated..
  • 12v relays can operate with anywhere between 9v and 14v,Very suitable for 12V automotive, marine, and machine circuits..
  • These 12V 5-pin relays are rated to handle 30A on normally closed pin 87a and 40A on normally open pin 87..
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Panopticon Tech 10 pcs Brown Door Contacts Surface Mount NC Security Alarm Window Sensors WMagnetic Reed Switch. These ¾” Position switches (DCS) Work All Access Control & Burglar Alarm Systems

  • 10 Brown ABS Surface Mount Normally Closed Door Contact Switch.
  • Will make Sense Door Closer at Roughly ¾” or 15mm.
  • This Contact Works with Any Access Control or Burglar Alarm System Available.
  • NORMALLY CLOSED: When the door or window is open, the contact will give an open signal and when the door is closed the contact will give a closed (circuit) signal..
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1 pcs White Recessed Door Contacts NC Security Alarm Window Sensors with Magnetic Reed Switch These ¾” Door Contact Position switches DCS Work with All Access Control and Burglar Alarm Systems

  • 1 White ABS Normally Closed Door Contact Switch.
  • Will make Sense Door Closer at Roughly ¾” or 15mm.
  • This Contact Works with Any Access Control or Burglar Alarm System Available.
  • NORMALLY CLOSED: When the door or window is open, the contact will give an open signal and when the door is closed the contact will give a closed....
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Panopticon Tech 3 pcs Wired White Door Contacts Surface Mount NC Security Alarm Window Sensors.These ¾ inch Contact Position switches (DCS) Work with All Access Control and Burglar Systems

  • 3 White ABS Surface Mount Normally Closed Door Contact Switch with 11" Pigtail.
  • Will make Sense Door Closer at Roughly ¾” or 15mm.
  • This Contact Works with Any Access Control or Burglar Alarm System Available.
  • NORMALLY CLOSED: When the door or window is open, the contact will give an open signal and when the door is closed the contact will give a closed (circuit) signal..
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1 pcs White Recessed Door Contacts NC Security Alarm Window Sensors with Magnetic Reed Switch These ¾” Door Contact Position switches DCS Work with All Access Control and Burglar Alarm Systems

  • 1 White ABS Normally Closed Door Contact Switch.
  • Will make Sense Door Closer at Roughly ¾” or 15mm.
  • This Contact Works with Any Access Control or Burglar Alarm System Available.
  • NORMALLY CLOSED: When the door or window is open, the contact will give an open signal and when the door is closed the contact will give a closed (circuit) signal..
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10pcs RC-33 NC Recessed Wired Window Door Contact Sensor Alarm Magnetic Reed Switch White

  • RC-33 NC Recessed Wired Window Door Contact Sensor Alarm Magnetic Reed Switch.
  • Magnet near together, the switch is closed.And the switch and magnet is separate, the switch is open..
  • NC means Normally Closed: When the magnet together, the circuit is conductive( light on ).
  • when the magnet separate, the circuit is not conductive ( light off )..
  • NC means Normally Closed:When the magnet together, the circuit is conductive( light on ).
  • Each Size(Approx): 17 x 10.6mm / 0.67 x 0.42-inch (H*D) Cable Length(Each): 25cm / 9.8-inch.
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3 pcs Recessed Brown Door Contacts NC Security Alarm Door Window Sensors With Magnetic Reed Switch These ¾” Door Contact Position switches DCS Work with All Access Control and Burglar Alarm Systems

  • 3 Brown ABS Normally Closed Door Contact Switch.
  • Will make Sense Door Closer at Roughly ¾” or 15mm.
  • This Contact Works with Any Access Control or Burglar Alarm System Available.
  • NORMALLY CLOSED: When the door or window is open, the contact will give an open signal and when the door is closed the contact will give a closed (circuit) signal..
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RuiLing 5-Pack KSD301 40 Degrees Centigrade Thermostat Thermal Control Switch 250V 10A Normally Closed NC Thermostat Temperature Switch

  • Package includes: 5pcs 40 degrees centigrade normally closed thermal control switch.
  • Rated Voltage: 250 Volt Rated Current: 10 Amp.
  • Rated temperature: 40 degrees centigrade.
  • Action Type: NC (Normally Closed): The original state of temperature control switch contact is closed, and open when the temperature sensing exceeds the rated temperature 40 degrees centigrade..
  • Double metal chip, contact sensor, speed dynamic type, sensitive, reliable, safe, stable action temperature, long service life, no arc phenomenon..
  • General purpose, automatic reset, low cost, large capacity, minute current thermostats..
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RuiLing 5-Pack KSD301 150 Degrees Centigrade Thermostat Thermal Control Switch 250V 10A Normally Closed NC Thermostat Temperature Switch

  • Package includes: 5pcs 150 degrees centigrade normally closed thermal control switch.
  • Rated Voltage: 250 Volt Rated Current: 10 Amp.
  • Rated temperature: 150 degrees centigrade.
  • Action Type: NC (Normally Closed): The original state of temperature control switch contact is closed, and open when the temperature sensing exceeds the rated temperature 150 degrees centigrade..
  • Double metal chip, contact sensor, speed dynamic type, sensitive, reliable, safe, stable action temperature, long service life, no arc phenomenon..
  • General purpose, automatic reset, low cost, large capacity, minute current thermostats..
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1 pcs Brown Door Contacts Surface Mount NC Security Alarm Window Sensors With Magnetic Reed Switch. These ¾” Door Contact Position switches (DCS) Work with All Access Control and Burglar Alarm Systems

  • 1 Brown ABS Surface Mount Normally Closed Door Contact Switch.
  • Will make Sense Door Closer at Roughly ¾” or 15mm.
  • This Contact Works with Any Access Control or Burglar Alarm System Available.
  • NORMALLY CLOSED: When the door or window is open, the contact will give an open signal and when the door is closed the contact will give a closed (circuit) signal..
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1 Mini Recessed Door Contacts Brown NC Security Alarm Door Window Sensors W/Magnetic Reed Switch. These ¾” Door Contact Position switches (DCS) Work with All Access Control and Burglar Alarm Systems

  • 1 Brown ABS Normally Closed Miniature Door Contact Switch 5/8 by 3/8 with 11" pigtail.
  • Will Sense Door Closer at Roughly 1/2” or 10mm.
  • This Contact Works with Any Access Control or Burglar Alarm System Available.
  • NORMALLY CLOSED: When the door or window is open, the contact will give an open signal and when the door is closed the contact will give a closed (circuit) signal..
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