Description
4–32V DC Solid State Relay – 0–30V DC 100A
High-Current DC SSR for Motor Control, Automation & Power Switching
⚡ Reliable High-Power DC Switching
This 4–32V DC Solid State Relay (SSR) is designed for high-current DC switching applications requiring fast, efficient, and silent operation. Capable of switching up to 100A at 30V DC, it’s ideal for motor control, automation systems, power distribution, and DIY electronics projects where reliability and protection are critical.
With low on-state resistance, minimal voltage drop, and sub-millisecond switching times, this relay delivers precise control while reducing heat generation and improving system efficiency.
⚠️ Important: Inductive loads must use diode suppression. Refer to the datasheet wiring diagram to prevent damage.
Key Features
-
High Current Capacity: Switches up to 100A DC
-
Wide Control Voltage: 4–32V DC input for flexible control logic
-
Fast Switching:
- Turn-on time: ≤ 0.5 ms
- Turn-off time: ≤ 0.5 ms
-
Low Loss Operation:
- Max on-state resistance: 0.007Ω
- Max voltage drop: 0.35V
-
High Surge Capability: Up to 240A (10ms)
-
Silent & Wear-Free: Solid-state design with no moving contacts
-
Built-In Protection: Reliable overload and short-circuit tolerance
-
Chassis Mount Design: Secure screw-down installation
Ideal Applications
- DC motor control systems
- High-power motor drivers
- Automation & control panels
- Battery-powered systems
- Robotics & DIY electronics
- Solar, EV, and power management projects
Technical Specifications
Input Circuit
-
Control Voltage: 4–32V DC
-
Control Current: ≤ 28mA
-
Min Turn-Off Voltage: 1.0V DC
-
Input Resistance: 1.2kΩ
Output Circuit
-
Load Voltage: 0–30V DC
-
Load Current: 0.02–100A
-
Contact Format: SPST
-
On-State Resistance: 0.007Ω (max)
-
On-State Voltage Drop: 0.35V (max)
-
Surge Current: 240A (10ms)
Mechanical & Mounting
-
Device Type: Solid State Relay (DC)
-
Mounting Method: Chassis mount
-
Attachment: Screw-down
-
Mount Screws: 2 × M2
-
Mount Screw Spacing (H): 47.5mm
-
Operation Time: 0.5ms
-
Release Time: 0.5ms
Physical & Packaging
-
Packaged Weight: 0.11kg
-
Packaged Dimensions: 6.3 × 5.1 × 2.9 cm
-
Packaged Volume: 0.09L
Why Choose This Solid State Relay?
This DC SSR provides efficient, silent, and durable switching for demanding applications where mechanical relays fall short. With high current handling, fast response, and low losses, it’s a dependable choice for long-term, high-performance DC control systems.
