SSR-40DA DC to AC Solid State Relay - 3 Pack

SSR-40DA DC to AC Solid State Relay - 3 PackSSR 40DA Solid State Relay Key Features Model: SSR 40DA Type: Single phase solid state relay Control Input Voltage: 3 32V DC Load Output Voltage: 24 380V AC Maximum Load Current: 40A Switching Method: Electronic, for fast response and long service life Construction: Aluminum heat dissipating base plate with screw terminals Replaces Cross Reference Part Numbers SSR 40DA Replaces solid state relays with matching electrical specifications (3 32V DC

SSR-40DA Solid State Relay

Key Features

• Model: SSR-40DA
• Type: Single-phase solid state relay
• Control Input Voltage: 3-32V DC
• Load Output Voltage: 24-380V AC
• Maximum Load Current: 40A
• Switching Method: Electronic, for fast response and long service life
• Construction: Aluminum heat-dissipating base plate with screw terminals
  

Replaces / Cross-Reference Part Numbers

• SSR-40DA
• Replaces solid state relays with matching electrical specifications (3-32V DC control, 24-380V AC load, up to 40A)

Compatibility & Fitment

• Suitable for various AC load switching applications including PID temperature controllers, industrial automation, HVAC systems, and motor controls.
• Compatible with microcontrollers and PLCs that provide a 3-32V DC output signal.
• A heat sink is required for loads exceeding 10A to prevent thermal damage and ensure rated performance.

When to Replace

• Relay fails to activate the load when a control signal is present.
• Relay remains stuck in the "ON" position, keeping the load powered without a control signal.
• Unit overheats under normal operating conditions (with an appropriate heat sink).
• Visible damage, such as a cracked housing or corroded terminals.

Installation Tips

• Disconnect all power sources before installation or servicing.
• Mount the relay on a correctly sized heat sink, especially when switching loads greater than 10A.
• Apply a thin layer of thermal paste between the relay's metal base and the heat sink for optimal heat transfer.
• Connect control (input) and load (output) wiring to the correct terminals as marked on the device.
• Ensure all wire connections are secure to prevent arcing and overheating.