Southeast Aerospace will be closed Thursday, November 25th and Friday, November 26th in observance of Thanksgiving.
Regular business hours will resume on Monday, November 29th. AOG Services are available.

product image

Part #: 3LO-453/3




Inertia Switch

Part Number :



  • Model 3LO-453 series is a highly reliable latching inertia/impact switch used for various military and commercial aviation applications.
  • The specified g level is preset at the factory.
  • When predetermined g levels are exceeded by the aircraft
  • Able to automatically turn on or off certain systems such as: voice or data recording, emergency lighting, and fire control
  • The unique latching ability allows the switch contacts to maintain contact closure after the threshold g's recede
  • Designed to Open or Close
  • Can Carry AC or DC 
  • Qualified to Mil-STD-8-10
  • Small and Lightweight
  • Environmentally sealed
  • Gold Contacts
  • Latching with Manual Reset
  • Multiple Poles Available
  • Single or Multi Axis
  • Crash detector
  • Cockpit voice recorder CVR cutoff
  • Flight data recorder FDR cutoff
  • Emergency lighting on
  • Fire supression
  • Power cessation
  • No power required



Contact type: SPST NC Contact rating: 5.0A @ 28 VDC / 125 VAC
Sensitivity: Unidrectional Contact Resistance: 500 Mohms@500VDC
CONTACT RESISTANCE: Less than 1.0 ohms Reset: Pushbutton
REST: Latching, mannual reset Operating Temp: -55 to 250F
seal: Hermetically Epoxy Sealed Termination: Terminals
accuracy: 10% dAMPING: Undamped




Serial # 124930
Condition NEW
Mods -
Tag Date 06/07/21
Shop Inertia Switch Inc.
Warranty 1 Year
Serial # 124931
Condition NEW
Mods -
Tag Date 06/07/21
Shop Inertia Switch Inc.
Warranty 1 Year
- Unidirectional Inertia/Impact Switch

NSN: 5930-01-308-2510

Price Condition Status