Finder 077.13 – 77 Series Modular solid state relays- Accessory

Why Choose the Finder 077.13 Heat Sink for Solid State Relays?

The Finder 077.13 is a dedicated heat sink accessory for compatible Finder Series 77 solid state relays (SSRs). Designed to assist with thermal management in electrical control equipment, it provides a passive cooling solution for semiconductor switching devices used in industrial automation, machinery control and process heating applications.

Solid state relays generate heat during operation because their semiconductor output devices exhibit an on-state voltage drop. The Finder 077.13 provides a conductive thermal path from a compatible relay into a heat-dissipating metal structure, helping control temperature rise when the relay is correctly installed and operated within its thermal limits.

As part of the Finder Series 77 accessory range, the 077.13 is intended for use in appropriately designed SSR installations. Its passive cooling arrangement is particularly useful in control panels where reliable heat dissipation, suitable component spacing and efficient thermal design are essential.

Key Advantages

• Dedicated SSR heat sink for compatible Finder Series 77 installations.
• Helps dissipate heat generated by semiconductor switching devices.
• Passive cooling operation without requiring a separate electrical supply.
• Supports the thermal management of industrial power switching assemblies.
• Provides a practical heat-dissipation solution for control panel designers.
• Helps reduce excessive relay temperature rise when correctly selected and installed.
• Suitable for use in industrial automation and electrical heating control systems.
• Can be incorporated into equipment designs requiring reliable SSR operation.
• Supports the use of suitable thermal interface materials for effective heat transfer.
• Part of the Finder Series 77 solid state relay accessory family.

Key Features

• Finder Series 77 solid state relay accessory.
• Model 077.13.
• Heat sink for compatible solid state relays.
• Passive thermal management design.
• Metal heat-dissipating construction.
• Designed to conduct heat away from a mounted SSR.
• Suitable for industrial electrical and automation assemblies.
• No independent electrical switching contacts.
• No operating coil or control input.
• No separate electrical supply required for passive cooling.
• Installation requires suitable thermal contact with the associated relay.
• Relay compatibility and allowable current must be assessed using the applicable Finder technical documentation.

Reliable Thermal Management for Solid State Switching

Unlike electromechanical relays, solid state relays use semiconductor components to switch electrical loads. These components dissipate power when conducting current, and the resulting heat must be managed to keep the relay within its permissible operating temperature. Effective cooling is therefore an important consideration when designing SSR switching systems.

The Finder 077.13 heat sink is intended to provide a heat-dissipating surface for compatible Finder solid state relays. Correct mechanical mounting and a suitable thermal interface help transfer heat from the relay's mounting surface to the heat sink, where it can be released into the surrounding air.

Actual cooling performance depends on the relay's power dissipation, ambient temperature, installation orientation, enclosure ventilation and available airflow. The heat sink must therefore be selected in conjunction with the specific relay's thermal characteristics and current derating information rather than by nominal load current alone.

For safe installation, adequate clearance should be maintained around the heat sink, and the possibility of elevated surface temperatures should be considered. The 077.13 provides thermal management only; it does not replace electrical protection, suitable wiring or the manufacturer's prescribed installation procedures.

Typical Applications

• Thermal management of compatible Finder Series 77 solid state relays.
• Industrial automation and electrical control panels.
• Semiconductor switching assemblies.
• Electrical heating and temperature control systems.
• Industrial ovens and process heating equipment.
• Packaging and manufacturing machinery.
• PLC-controlled load switching circuits.
• OEM electrical equipment and machinery control systems.
• Industrial process control installations.
• Control cabinets requiring passive heat dissipation.