# Solid State Relay, SSR-25DD, 25A, 5-200VDC

> SSR-25DD solid state relay, DC-DC type, for switching direct current loads. Control voltage (input) 3-32VDC, switching voltage (output) 5-200VDC, maximum current 25A. No mechanical contacts, with status LED and photocoupler isolation. Dielectric strength 2500VAC/1 minute, operating temperature -20°C to 80°C, dimensions 60x45x23mm.

- Page: https://sigmanortec.ro/en/solid-state-relay-ssr-25dd-25a-5-200vdc
- Price: 37.81 RON
- Availability: In stock; 1-2 zile
- Reference: 9841 · EAN: 5949500303653
- Category: Electronic components > Relays > Solid State Relays
- Specifications: Minimum Output Voltage: 5 V; Maximum Output Voltage: 200 V; Maximum Output Current: 25 A; Output Type Voltage: Closed-Open Contact; Output Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.
- Package (shipping data): 0.103 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 04:49 (Europe/Bucharest)

## Description

Solid state DC-DC relay for precise switching of DC loads, ideal for automation and industrial applications. Supports up to 25A, controls 3-32VDC and switches 5-200VDC, without mechanical contacts for silent operation and long life. Has status LED and photocoupler isolation for safe control and fast response.
Solid State Relay SSR-25DD (DC controls DC) designed for precise control of direct current circuits, ideal for industrial applications and automation projects.
It has a switching capacity of 25A and a wide input (3-32VDC) and output (5-200VDC) voltage range, offering high reliability and fast response times, eliminating mechanical contacts and wear associated with conventional relays.
The relay, being without mechanical contact, ensures safe and silent switching, which means an extended lifetime of the module, without the risk of welding the contacts.
Specifications:
Model: SSR-25DD
Type: DC-DC
Maximum current: 25A
Control voltage (input): 3-32VDC
Switching voltage (output): 5-200VDC
LED indicator: for operating status
Leakage current in idle state: ≤ 4mA / ≤ 2mA
Stop time: ≤ 10 ms
Dielectric resistance: 2500VAC / 1 minute
Insulation strength: 50MΩ / 500VDC
Operating temperature: -20°C to 80°C
Insulation: Photocoupler for additional protection and safety
Dimensions: 60 x 45 x 23mm
Use:
Feed the relay input with a control voltage between 3-32VDC.
Connect the load circuit to the output terminals of the relay (5-200VDC) ensuring the compatibility of the 25A current.
Make sure the relay is well fixed and ventilated to avoid overheating during continuous operation at high loads.
Use the LED indicator to check the operating status of the relay.