Finder Contactor - 25A 2NO 24V AC/DC - 22 Series

Compact 17.5mm modular contactor from Finder, part of the 22 Series. It features two normally open...

Best current price£24.20from Tameson UK

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Tameson UKFinder Modular Contactor 25A 24V Dc/Ac 2Nc With Led Indicator - 22.32.0.024.4420
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£24.20
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Rapid Online - Rapid Electronics Ltd.Finder 22.32.0.230.4320 Contactor 2 Makers 230V 25A 1 NO+1 NC or 2 NO
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£26.35
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eBayFinder Modular Relay 1NO 1NC 24VAC/DC 10A
£3.50 delivery
£32.64
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Blueperry agriculture (UK)Finder Contacter 2M 25A 24Vu 223200241340
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£75.07
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Product Information

Full details

The Finder 22 Series Contactor (Model 22.32.0.024.4320) is designed for electricians and automation professionals needing a compact, reliable solution for controlling lighting and general electrical loads. Its primary benefit is its space-saving 17.5mm modular design and noiseless operation. A key consideration is its specific contact rating and voltage requirements, making it ideal for applications within its specified limits.

All features

Series22 Series
Model Part Number22.32.0.024.4320
BrandFinder

Extended Product Information

FAQs

What is the maximum switching capacity for this contactor?

The contactor has a maximum switching power of 6.25 kVA (AC) and can handle a maximum switching voltage of 440V AC with a current capacity of 25A.

Can this contactor be used with normally closed circuits?

No, this specific model (22.32.0.024.4320) features two normally open (NO) contacts and does not have any normally closed (NC) contacts.

What type of DIN rail should be used for mounting?

This contactor is designed to be mounted on a standard 35mm DIN rail.

What is the difference between the AC and DC coil resistance?

The coil resistance is approximately 41 Ω for AC operation and 460 Ω for DC operation. This difference affects the power consumption calculation for each type of supply.

Is this contactor suitable for outdoor use?

No, the contactor has a degree of protection of IP20, meaning it is protected against solid objects larger than 12.5mm but offers no protection against water. It should be installed in a suitable enclosure to protect it from environmental factors.

What is the warranty period for this Finder contactor?

Warranty information is typically provided by the retailer or distributor. Please refer to your purchase documentation for specific warranty details.

Can I add auxiliary contacts to this unit?

Yes, the 22 Series contactors are designed to allow for additional equipment, which can include auxiliary contact blocks. Ensure compatibility before purchasing and installing accessories.

Troubleshooting

Contactor does not energize when coil voltage is applied.

Verify the coil voltage is exactly 24V AC or 24V DC and is correctly connected to A1/A2 terminals. Check for loose connections or a broken wire in the control circuit. Ensure the coil is not faulty.

Contactor remains energized (contacts welded or stuck).

Disconnect power immediately. This may indicate a short circuit in the load or a failure within the contactor. Inspect the load circuit for faults. The contactor may need replacement if the internal contacts are damaged.

Overheating of the contactor.

Ensure the load current does not exceed the 25A rating. Check for adequate ventilation around the contactor, especially in enclosed spaces. If the coil is continuously energized, verify the coil power consumption is within specifications (2.2W).

LED indicator is not lit when expected.

Confirm the coil is energized with the correct voltage. The LED may be faulty, or the contactor might be functioning but the indicator is not showing it. Check the connection to the LED if accessible, otherwise, the unit may require replacement.

Pros and Cons

Pros

  • Space-saving 17.5mm width is excellent for dense control panels.
  • Noiseless operation is beneficial for residential or office environments.
  • LED indicator provides quick visual status feedback.
  • Integrated surge protection adds reliability and component longevity.
  • Low 24V AC/DC coil voltage is safe and common in control systems.
  • Suitable for direct control of specific lighting loads up to 2000W incandescent.

Cons

  • Limited to 2 normally open contacts, not suitable for complex switching logic requiring normally closed contacts.
  • Specific load limitations (e.g., 800VA fluorescent) require careful application planning.
  • IP20 degree of protection means it's not suitable for dusty or wet environments without additional enclosure.
  • Coil resistance varies significantly between AC and DC operation, affecting power calculations.
  • Maximum switching voltage of 440V AC requires confirmation against the installation's supply voltage.

Setup, Compatibility & Care

Setup:

  1. Mounting: Snap the contactor onto a standard 35mm DIN rail. Ensure it occupies one modular space.
  2. Wiring: Connect the power source and the load to the appropriate screw terminals. Refer to the wiring diagram for correct polarity and connections for the coil (A1/A2) and contacts (1/2, 3/4).
  3. Coil Voltage: Ensure the control circuit voltage supplied to the coil (A1/A2) is precisely 24V AC or 24V DC.

Compatibility:

  • Control Voltage: Compatible with 24V AC/DC control signals.
  • Load Voltage: Suitable for switching loads up to 440V AC.
  • Load Current: Rated for a maximum of 25A. Ensure your load does not exceed this.
  • Lighting Loads: Ideal for incandescent loads up to 2000W or fluorescent loads up to 800VA (parallel compensated 500VA).
  • Enclosure: Requires installation in an environment with at least an IP20 rating for protection against direct contact.

Care:

  • Cleaning: Disconnect power before cleaning. Use a dry or slightly damp cloth to wipe the exterior. Avoid solvents or abrasive cleaners.
  • Ventilation: Ensure adequate ventilation around the contactor, especially when installed in an enclosure, to prevent overheating.
  • Inspection: Periodically inspect terminals for tightness and signs of corrosion. Check the mechanical indicator for proper operation.

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