# Optocoupler relay module, 1 channel, 12V, 30A, adjustable level

> Optocoupler relay module, 1 channel, for controlling power loads in industrial or DIY projects. Optical isolation protects the control signal, NO relay rated 30A (16A recommended), rating 240VAC. Supply/signal voltage 12VDC, High/Low Level trigger selectable via jumper. Green LED (power) and red LED (relay status). Dimensions 50 x 33 x 24mm, weight 36g, mounting holes spaced 44.5 x 27.5mm.

- Page: https://sigmanortec.ro/en/optocoupler-relay-module-1-channel-12v-30a-adjustable-level
- Price: 19.23 RON
- Availability: In stock; 1-2 zile
- Reference: 9197 · EAN: 5940582061714
- Category: Electronic components > Relays
- Specifications: Maximum Output Current: 30; Output Type Voltage: Closed-Open Contact; Input Voltage: 12 VDC; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.
- Package (shipping data): 0.035 kg
- Updated: 2026-09-14
- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Prices: RON, VAT included; prices and stock as of 2026-10-22 02:22 (Europe/Bucharest)

## Description

Controls power loads in industrial or DIY projects, with optical isolation for control signal protection and NO 30A relay. Operates at 12V and allows selection of High or Low Level triggering via jumper. Includes green LED for power and red LED for relay status, plus mounting holes for stable mounting.
Relay module with optocoupler, one channel, High or Low Level actuation, 12V and 30A.
This relay is NO (Normally Open), i.e. Normally Open and differs from other relay modules due to the optocoupler and the possibility of setting the trigger at High or Low level via a jumper.
It has two status indicator LEDs: Green to signal power, Red to indicate relay status.
It has 3.1mm screw mounting holes, 4 in total, at a distance of 44.5 x 27.5mm
Specifications:
Supply voltage: 12VDC
Signal Voltage: 12VDC
Standby consumption: 5mA
Work consumption: 190mA
Relay trip current: 2 - 4mA
Relay rating: 240VAC
Current: 30A Maximum, 16A recommended
Action: Low Level - High Level, selectable by positioning the jumper in the corresponding position
Weight: 36g
Dimensions mm: 50 x 33 x 24mm
Pins:
Power pin: DC+
Minus pin: DC-
Signal pin: IN
Voltage pin: JD+
Negative voltage pin: JD-
Details:
* The instructions in the image are informative. The model in the image differs from the marketed model.