Description

Features

60A 70-280V AC to 24-480V 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

Specification

Model	ATO-SSR-DH60AA
Input	Control voltage range	70-280V AC
Max. input current	15mA
Must operate voltage	70V AC
Must release voltage	50V AC
Output	Load voltage range	24-480V AC
Peak voltage	800V AC
Maximum load current	60A
Maximum off-state leakage current	2mA
Maximum off-state time	10mS
Maximum on-state voltage drop	1.5V
General	Type	AC to AC, single phase
Dimension L – W – H (mm)	57.4х44.8х28
Weight	135g
Dielectric strength (input to output)	4000V
Dielectric strength (input, output to the base)	2500V
Operating temperature	-20℃~ 80℃
Mount	Panel
Certification	CE

Note:

When the load is a resistive load, the maximum load current of the selected SSR should be 2~3 times greater than the actual load current;
When the load is an inductive load, the maximum load current of the selected SSR should be more than 7~8 times the actual load current.
When the maximum load current is higher than 10A, a heat sink must be installed to the solid state relay, or the SSR relay should be mounted on a metal base plate with heat dissipation effect, and the thermal grease is applied between them.

Dimension (Unit: mm)

Wiring Diagram

Tips: AC solid state relays vs DC solid state relays

Based on the type of load power supply, SSRs can be divided into AC Solid State Relays (AC-SSRs) and DC Solid State Relays (DC-SSRs). AC-SSRs use a bidirectional thyristor as a switching device to turn on or off the AC load power supply. According to the type of control trigger, AC-SSR can be divided into zero-crossing and random turn-on. Zero-crossing AC-SSRs switch on when AC power supply goes through approx. zero voltage after control signals input. Therefore, their interference is small. The random turn-on AC-SSRs switch on or off in any phase of the AC power supply, so there may be more interference the moment they turn on.

Compared with AC-SSR, DC-SSR has no zero-crossing control circuit and does not need to install a absorption circuit, and its switching devices generally use high-power switching transistor, except which, they have the same working principles. When DC-SSR is used, it should be noted that:

In the case of inductive load, such as DC solenoid valves or electromagnets, a diode should be set in parallel at both ends of the load. Meanwhile, its current should be equal to the operating current, and its voltage should be 4 times greater than the operating voltage.
During its operation, try to put SSR close to the load, and its output lead should meet the needs of the load current.
Its filtering electrolytic capacitor should be large enough when the used power supply is obtained by AC brownout rectification.