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Finder 55.34.9.024.5040 Plug-in Relay - 24VDC - 7A - 4PDT

Finder 55.34.9.024.5040 Plug-in Relay - 24VDC - 7A - 4PDT

This Finder plug-in relay, model 55.34.9.024.5040, features a 24VDC coil and a 7A switching curren...

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Product Information

Full details

This Finder plug-in relay, model 55.34.9.024.5040, is designed for industrial automation and control systems requiring reliable switching for up to 7A loads. Its key benefit is the 4PDT configuration with gold-plated contacts, ensuring high performance and durability. A potential caveat is the specific 24VDC coil voltage, requiring a compatible power source.

All features

Series55
Model Part Number55.34.9.024.5040
BrandFinder

Extended Product Information

FAQs

What is the coil voltage for this relay?

The coil voltage for the Finder 55.34.9.024.5040 relay is 24VDC.

How many independent switching circuits does this relay have?

This relay features 4PDT (4 Change-over) contacts, meaning it has four independent sets of contacts.

What is the maximum current this relay can switch?

The maximum switching current for this relay is 7A.

Can I use this relay with an AC power source?

No, this specific model is designed for a 24VDC coil voltage and cannot be used directly with an AC power source. Finder offers other models for AC operation.

Does this relay require a socket?

Yes, this is a plug-in relay and requires a compatible relay socket (like the Finder 94.14SMA) for installation and connection.

What is the purpose of the test button?

The test button allows you to manually operate the relay contacts without energizing the coil, which is useful for testing circuits during installation or troubleshooting.

What does 'AgNi + Au' plating mean for the contacts?

It signifies that the contacts are plated with Silver Nickel (AgNi) and Gold (Au). This combination provides good conductivity, wear resistance, and protection against corrosion, especially in low-voltage/low-current applications or humid environments.

Troubleshooting

Relay does not energize when control voltage is applied.

Verify the coil voltage is 24VDC. Check the wiring to the coil terminals (pins 13/14). Ensure the relay is fully seated in its socket. Test the relay using the manual test button.

Contacts remain open or closed when they should switch.

Check if the coil is receiving the correct voltage. Ensure the load connected does not exceed the 7A rating. The relay contacts may be damaged; consider replacement if testing indicates internal failure.

Intermittent operation or poor contact resistance.

Ensure the coil voltage is stable and within specifications. Check for environmental factors like dust or humidity affecting the contacts. Gold-plated contacts are generally reliable, but extreme conditions can still cause issues. Inspect and clean socket contacts if necessary.

Mechanical indicator does not match contact status.

This usually indicates a mechanical issue within the relay. If the relay is otherwise functioning, rely on the electrical switching. If the discrepancy is persistent, the relay may need replacement.

Pros and Cons

Pros

  • High reliability due to gold-plated contacts.
  • Versatile switching with 4PDT configuration.
  • Easy installation and maintenance via plug-in socket.
  • Built-in test button for convenient diagnostics.
  • Clear visual indication of relay status.

Cons

  • Specific 24VDC coil voltage may limit compatibility with other voltage systems.
  • Requires a compatible socket (e.g., Finder 94.14SMA) for plug-in installation.
  • 7A switching current might be insufficient for very high-power applications.

Setup, Compatibility & Care

Setup:

  1. Ensure the power source matches the relay's coil voltage (24VDC).
  2. Select a compatible relay socket (e.g., Finder 94.14SMA) and mount it securely.
  3. Connect the control circuit to the coil terminals (typically pins 13/14 for coil input, 13/14 for coil output, check socket diagram) and the load circuit to the contact terminals (1-4 for NO contacts, 5-8 for NC contacts, 9-12 for common poles - refer to socket pinout for specific assignments).
  4. Carefully plug the relay into the socket, ensuring correct orientation.
  5. Apply power to the control circuit to energize the coil.

Compatibility:

  • Coil Voltage: Primarily compatible with 24VDC power supplies.
  • Current Rating: Suitable for loads up to 7A (resistive).
  • Sockets: Designed to fit standard Finder 55 Series relay sockets.
  • Environmental: Suitable for industrial environments; avoid excessive moisture or extreme temperatures.

Care:

  • Keep the relay and socket clean and free from dust and debris.
  • Periodically inspect connections for signs of corrosion or wear.
  • Do not exceed the rated switching current or voltage.
  • To clean, disconnect power and use a dry or slightly damp cloth. Avoid solvents.

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