Solid State Relay Features
60A 3-32V DC to AC solid state relay (SSR) features high structural strength, good impact resistance, and strong shock resistance. The SSR offers a reliable switching the commercial and industrial loads, such as computer peripheral interface device, printing machine, molding machine, food machine, packaging machine, and so on.
- Built in RC absorption
- Photoelectric isolation
- SCR output
- LED indicator for operation status
- Removable protective cover for safety
- Panel mount
- Zero-crossing switch type
60 Amps DC to AC SSR Specification
||Control voltage range
|Max. input current
|Must operate voltage
|Must release voltage
||Load voltage range
|Maximum off-state leakage current
|Maximum off-state time
|Maximum on-state voltage drop
||Dimension L – W – H (mm)
|Dielectric strength (input to output)
|Dielectric strength (input, output to the base)
* When the load current is higher than 10A, a heat sink must be added to the SSR or the SSR should be mounted on a metal base plate with heat dissipation effect, and apply the thermal grease between them. When the load current is higher than is 40A or more, it also needs to add fan cooling or water cooling.
* Heat sink is Not included.
Solid State Relay Dimension
SSR Wiring Diagram
Tips: Electromagnetic relay (EMR) vs solid state relay (SSR)
- Structural differences
Electromagnetic relays work relying on suction effects generated between electromagnet core and armature by the internal circuit of input circuit. SSR, without any mechanical motion components inside, uses electronic components to perform its function. Its input and output are optically isolated.
- Working methods
Electromagnetic relay uses the electromagnetic induction principle, and control on-off state of circuits through the power of the electromagnet. Therefore, AC or DC is allowed for contacts if DC is used for coils. SSRs achieve their functions of isolation and relay switching relying on electric, magnetic and optical characteristics of semiconductor devices and electronic components. Therefore, SSRs are divided into the type of DC input - AC output, DC input - DC output, AC input - AC output, AC input - DC output.
- Working conditions
Electromagnetic relays use suction effects generated between armatures to connect and disconnect circuits. Therefore, it has slow reaction, noises, limited life expectancy. SSRs have short response time, noise-free operation and a long life.
- Operating environment
As for factors such as temperature, humidity, atmospheric pressure (altitude), sand and dust pollution, chemical gases and electromagnetic interference, electromagnetic relays are generally not as good as SSRs.
- Electrical performances
For electromagnetic relays and corresponding SSRs, the former is simple to drive, but the power consumption is large. It also has good isolation and short-term overload tolerance. The control of high-current, high-power occasions is not as good as the latter, and for the control of circuits with frequent action, its life expectancy is not as long as the latter.