ABRA has a vast inventory of Relay Switch electronic kits for teachers, students and hobbyists.
If you are a teacher looking for the appropriate kits for your classroom, call our knowledgeable staff for quantity prices and recommendations.

Relay Switches

Sort by: SKU Product Price Default See details 8 Channel Relay Card SKU: VEL-K8056 This relay card can be used in several ways. Price: US$69.99 See details Clap On/Clap Off Relay Switch Kit SKU: CK252 Relay activated after receiving a sound. Price: US$14.99 See details CW Touch Paddle/Touch Switch SKU: TS-1 This versatile kit features TWO independent touch circuits. Price: US$13.99 See details Quad Triac Switch Card Kit SKU: VEL-K2634 Increase the life time of the contact point. Price: US$26.99 See details Relay Card SKU: VEL-K2633 4 x 3A relay outputs. Price: US$22.99 See details Universal Relay Card Kit SKU: VEL-K6714 If you want to switch large electric currents using an electronic control and require control isolation at the same time, then this card is a valuable asset. Price: US$69.99 See details Universal Relay Cards Kit SKU: VEL-K6714-16 16 relays and screw connectors included. Price: US$114.99