This is solid state relay ASH-10DD.

Model: ASH-10DD
Input Resistance/Power: 4-32VDC
Output voltage: 5-250VDC
Output current: 10A
Control Mode:External Controlling Potentiometer
Insulation Resistance:1000M ohm/500VDC
Ambient Temperature:-30C - +75C
Protection Character:Resin Soldering
Off Leakage Current: less or equal to 2mA
Mounting Method: Bolts Fixed
Relay size: 44.8 x 57.4 x 28mm/1.76"x2.25"x1.1"(L*W*H)
Weight:105g

Notice Of Use
1. The current on the product is the maximum load current, not the rated current.
2. On the basis of the difference of the load character, you should keep the different levels of the current when you choose the product. (When the load is resistive, the load current should be 1/2-1/3 times the max load current. When the load is inductive or capacitive, like motor， transformer， the load current should be 1/4-1/6 times of max load current.)
3. When Installation, solid state relay and radiator with smeared thermal conductivity silicone grease
4. ≥10A with radiator, ≥20A with radiator and fan strong cold.