Home
- LEDsaddremove
- Componentsaddremove
- Power suppliesaddremove
- LED strips
- LED modules
- Aluminum profiles and accessoriesaddremove
- LED, CCFL rings
- Lampsaddremove
- Car bulbsaddremove
- Accessoriesaddremove
- Smart homeaddremove
- Shielding technologyaddremove
- Metal fireplaces
Contactless voltage regulator SSR VA, 500kOhm/0-380VAC
SSR (Solid State Relay) is an electronic relay with no moving parts that is used to control electrical circuits. Unlike traditional electromechanical relays that use an electromagnetic field to control contacts, SSR uses semiconductor elements such as transistors, thyristors or triacs to control electrical circuits. SSRs can be used to control power devices such as lights, heating systems, motor controllers, electric pumps and other electronic devices that require switching or regulating high power. SSRs are popular for their reliability, high switching speed, quiet operation and easy integration with other electronic components.
This variant allows you to smoothly regulate the alternating voltage 0-380V AC using a 500 kOhm/2W potentiometer (others in the range of 470-560 kOhm can also be used).
Relay triggering indication via LED
Contact cover
Relays with switching currents above 10A must be cooled!
Off time: ≤10ms
Voltage drop: ≤1.5V
Dimensions: 58.5x45.5x29mm
Working temperature: -30 - +75°C
Insulation resistance: 1000MOhm
Control current: 25mA
Weight: 80g
- Resistance
- 500 kOhm
- Output voltage
- 0-380 V AC
- Waterproof grade
- IP22
- Insulation resistance
- 1000 MΩ
- Dielectric strength
- 2500 V AC
Wiring of SSR VA Relay with Potentiometer LA42DWQ-22
This guide describes how to correctly connect an electronic SSR relay for AC voltage regulation (0–250 V AC) using the panel potentiometer LA42DWQ-22 (2 W). The wiring is suitable for controlling motors, heating elements, or lights.
SSR Terminal Designation
- Terminal 1 – AC IN (L) – input phase of AC voltage
- Terminal 2 – AC OUT (L′) – output phase to the load
- Terminal 3 – potentiometer (Z1) – outer lead of the potentiometer
- Terminal 4 – potentiometer (Z2) – middle lead (wiper) of the potentiometer
Wiring of Potentiometer LA42DWQ-22
- Z1 (outer terminal) – connect to terminal 3 of the SSR
- Z2 (middle – wiper) – connect to terminal 4 of the SSR
- Z3 (second outer terminal) – in this application, it is usually not used (leave unconnected)
Wiring Steps
- Step 1: Make sure the circuit is disconnected from the mains.
- Step 2: Connect the 230 V AC power supply:
- L to terminal 1 (AC IN)
- Load between terminal 2 (AC OUT) and N
- Step 3: Connect the potentiometer:
- Z1 → terminal 3 on SSR
- Z2 → terminal 4 on SSR
- Step 4: Mount the potentiometer into the panel hole (Ø 22 mm).
- Step 5: Check the wiring, turn on the power, and use the LA42DWQ-22 knob to adjust the SSR output voltage.
Safety Warnings
- SSR with a current above 10 A must be equipped with a heat sink.
- Use wires with an appropriate cross-section.
- Include a fuse or circuit breaker in the circuit.
- Wiring must be performed only by qualified personnel.
EU Importer: AMPUL SYSTEM s.r.o., Čsl. armády 641/40, 78701 Šumperk, Czech Republic,
