Space Activities
The Space Industry requires the best technology
REL, the FIRST Space Division was founded on the basis of providing its customers with a wide range of hermetically sealed, high reliability relays and switching solutions for the most severe applications.
Our products are used in Satellite control systems, Launching control systems, Battery switching, Solar panel control, and are qualified to ESA ESCC 3601 / 3602.
Space Relays & Systems by REL, FIRST Space Division
Our Space Relays refer to customer’s specific requests, and to the relevant applicable standard specifications, such as ESA/ESCC, MIL, NASA, JAXA...
We provide a complete range of hermetically sealed relays for Space Application from 1 to 75 Amps




Established in 1955 and historically positioned in the defense sector, FIRST continues to develop and adapt its product capabilities to ever-changing market demands. Today, FIRST, with operations in the USA, France and India, supports several market sectors including Space, Commercial and Military Aeronautics, Industry & Railways.
REL, the FIRST Space Division, is present in the Space industry since 1975, and is dedicated to supplying high-reliability electromechanical relays for this market.
The qualification to the highest standards and the involvement in the major Space programs show the trust of the Space Experts Community in our products and in our capacity to develop, manufacture, and deliver high reliability relays for those applications.
FIRST encourages the development of long lasting relationships with its customers, suppliers and employees in order to achieve reasonable, regular and sustainable growth for many years to come!
FIRST Space Division is ready to support your Space projects.
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- MARKETS
- Aerospace
- Military / Defense
- Marine
- Railway
- Space
- Industry /Other
- PRODUCTS
- Non Latching Relays
- Latching Relays
- Sockets
- Application Notes
- Maintenance
- Timers
- CONTACT RATING
- 1A
- 2A
- 3A
- 5A
- 10A
- 15A
- 25A
- 50A
- 1A 72Vdc
- 3A 72Vdc
- 20mA 72Vdc
- 3A 110Vdc
- 15A 30Vdc
- 75A 28Vdc
- 50A 50Vdc
- 1A 28Vdc
- 1A 28Vdc 60mA
- CONTACT ARRANGEMENT
- 1PDT
- 2PDT
- 3PDT
- 4PDT
- 6PDT
- 1NO 1NC
- 2DPDT
- 3DPDT
- 3NO SPDT
- 2PDBDT
- 1NO + 1PDT
- 1PDBDT
- 3PDBDT
- 2PDT+1PDT
- 2NO 2NC
- 3NO 3NC
- 4PDT/RAILWAYS
- 1NO 1NC + 2PDT
- DPDT
- 1NO 1NC + 4PDT
- 2NO 2NC + 2PDT
- 4NO + 1NO 1NC
- 1NO 1 NC + 1PDT
- 6PDT/RAILWAYS
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