Application Notes: Agricultural Relay & Switch Solutions
Application Notes: Agriculture
Automotive relays, Solid State Relays, and Switches play a vital role in the modern agricultural equipment such as tractors, plows, combines, harvesters, fertilizer spreaders and balers among many other uses. Relays are commonly used to control high-current components like motors, lights, and hydraulic systems, providing reliable switching under rugged field conditions. Solid state relays offer fast, silent, and wear-free operation, ideal for precision control in electronic systems such as GPS-guided automation and variable rate application systems. Switches serve as user interfaces and safety control, enabling operators to manually activate or disable functions like PTO drives, lighting systems, or hopper releases. Together, these components enhance reliability, automation, and operational efficiency across a wide range of agricultural machinery.
Relays for Agriculture Applications
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A2K 60 Amp High DC Load blowout Magnet Automotive Plug-In / PCB Relay
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A3 Automotive Plug-In/ PCB Relay
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A3K 80 Amp High DC Load blowout Magnet Automotive Plug-In / PCB Relay
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A6 35 Amp Automotive Plug-In Relay
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A17 30 Amp Automotive Plug-In Relay
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A1 30 Amp Automotive Plug-in / PCB Relay
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A1M 40 Amp Automotive Plug- In Relay
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A2 Automotive Plug-In / PCB Micro ISO Relay
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A2H 50 Amp Large capacity and Low temperature Automotive Plug-In / PCB Relay
Switches for Agriculture Applications
Common Agricultural Applications
- Tractors
- Combine Harvesters
- Balers
- Seeders & Planters
- Fertilizer Spreaders
- Irrigation Systems
- Grain Handling Equipment
- Utility Vehicles
- Trailers
- Precision Farming Equipment
Our relays and switches help manufacturers improve reliability while reducing maintenance and equipment downtime.
Relay & Switch Applications in Agriculture
Motor & Pump Control
Lighting Systems
Hydraulic Controls
Precision Agriculture
Power Distribution
Operator Controls
Built for Harsh Agricultural Environments
- Dust & Dirt
- Rain & Moisture
- High Vibration
- Temperature Extremes
- Heavy Daily Use
- Outdoor Operation
Our products help equipment manufacturers improve system reliability while minimizing downtime during critical farming seasons.
Need Help Selecting the Right Solution?
Frequently Asked Questions
What types of agricultural equipment use relays?
Relays are commonly used in tractors, combines, irrigation systems, seeders, fertilizer spreaders, grain handling equipment, and other electrically controlled farm machinery.
Why are sealed relays important for agriculture?
Sealed relays help protect electrical systems against dust, moisture, mud, and vibration, increasing reliability in demanding outdoor environments.
Can solid state relays be used in agricultural equipment?
Yes. Solid state relays are ideal for applications requiring fast switching, silent operation, and long service life in electronic control systems.
Which CIT products are recommended for agricultural applications?
CIT offers power relays, automotive relays, solid state relays, rocker switches, toggle switches, and pushbutton switches suitable for a wide range of agricultural equipment.












