4-20mA / 4-20mA Signal Isolators

4-20 mA signal isolators and industrial galvanic isolation

The 4-20 mA signal isolators These are devices used in industrial automation systems to provide galvanic isolation between analog signals. Its main function is to protect control equipment, PLCs, and data acquisition systems from electrical interference, ground loops, and potential differences.

In industrial applications it is common to use process isolators when signals from sensors need to be transmitted safely to control or monitoring systems.

Common applications

• industrial automation
• process instrumentation
• machinery control
• chemical plants
• water treatment
• SCADA systems

Types of signal isolators

In this category you will find different types of equipment for industrial signal isolation:

• 4-20 mA signal isolators
• 4-20 mA signal doublers
• 4-20 mA signal quadruplers
• universal insulators 4-20 mA

Advantages of galvanic isolation

• elimination of mass loops
• reduction of electrical noise
• PLC protection and control systems
• greater stability of analog signals
• greater reliability in industrial systems