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.
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