2PCS Solid State Relay SSR-25DA DC

Key Features

• Package contains two (2) SSR-25DA solid state relays.
• Input Control Voltage: 3-32V DC
• Output Load Voltage: 24-380V AC
• Maximum Load Current: 25A
• Design: Solid-state construction with no moving parts for high reliability and long service life.
• Actuation: Zero-crossing turn-on circuit.

Replaces / Cross-Reference Part Numbers

• SSR-25DA

Compatibility & Fitment

• Suitable for controlling single-phase AC loads in various applications.
• Commonly used in industrial automation, temperature control systems, PLC outputs, motor controls, and lighting equipment.
• Requires an appropriate heat sink for operation with loads greater than 10A to ensure proper heat dissipation.

When to Replace

• Relay fails to activate the load circuit when control voltage is applied.
• Relay remains activated and will not turn off the load circuit when control voltage is removed.
• Intermittent or unpredictable switching behavior.
• Visible signs of physical damage, such as cracking or burn marks on the housing.

Installation Tips

• Disconnect all power to the circuit before installation.
• Verify correct polarity (+/-) for the DC input control terminals.
• Apply a thin layer of thermal compound between the relay's metal base and the heat sink.
• Mount the relay securely to a heat sink of adequate size for your load current.
• Ensure all wire connections are tight and secure to prevent overheating.