Solid state relay SSR-15DA, 15A 3-32V DC to AC

Features

15A 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

Specification

Note:

1. 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;
   
2. 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.
   
3. 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.

Heat Sink

Product Name	Heat Sink for SSR
Material	Aluminum
Dimension	Roof Size: 60 x 50mm Foot Size: 80 x 50mm Height: 50mm
Mounting Size	Mounting Hole Diameter: 3mm Threaded Hole Distance: 48mm
Weight	115g
Application	≤15A single phase SSR solid state relay

Dimensions (Unit: mm)

Wiring Diagram

Tips: Characteristics of solid state relays

The solid state relay is a non-contact electronic switch with isolation function. There are no mechanical contact parts in the switching process, so the solid state relay has the same function as the electromagnetic relay, but also has such characteristics as logic circuits compatible, vibration resistance, mechanical shock resistance, unlimited installation position, good moisture proof and mildew proof and corrosion resistance, excellent performance in preventing explosion and preventing ozone pollution, small input power, high sensitivity, small control power, good electromagnetic compatibility, low noises and high working frequency.

1. SSRs have no internal mechanical parts. Their structure adopts full-sealed perfusion. Therefore, SSRs have advantages such as vibration resistance, corrosion resistance, long life and high reliability. Their switch life is up to 10.1 million times.
2. Low noises. AC solid state relays use zero-crossing triggering technology, thus effectively reducing the voltage rise rate dv/dt and current rise rate di/dt on the line so that the SSRs’ long-term work has minimal interference with the city power.
3. Switching time is short, about 10ms. So SSRs can be used in higher frequency applications.
   Optoelectronic isolation between input circuits and outputs circuits is used, and insulation voltage is more than 2500V.
4. Low input power consumption, compatible with TTL and COMS circuits.
5. Output protection circuit.
6. High load capacity.