Shopping.co.uk

Modular Contactor - Finder - 25A - 24V DC/AC

Modular Contactor - Finder - 25A - 24V DC/AC

17.5mm wide modular contactor featuring 2 normally closed (NC) contacts rated at 25A/250VAC. Opera...

Best current price£24.20from Tameson UK

Best offers

Shopping.co.uk recommended and popular offers

All Offers

32 offers from £24.20 - £55.07

View price history by clicking the chart icon.

Tameson UKFinder 25A Modular Contactor 2No 230V Ac/Dc - 22.32.0.230.4320
Free delivery in 1–3 days
£24.20
Visit shop
Rapid Online - Rapid Electronics Ltd.Finder 22.32.0.230.4420 Contactor 230V 25A 2 Breakers DIN Rail Mount
Free delivery in 1–3 days
£26.09
Visit shop
eBayFinder Modular Relay 1NO 1NC 24VAC/DC 10A
£3.50 delivery
£29.34
Visit shop
Blueperry agriculture (UK)Finder Contacter 2M 25A 24Vu 223200241340
Free delivery in 1–3 days
£42.32
Visit shop

Product Information

Full details

This Finder Modular Contactor is designed for electrical installers and automation professionals managing lighting and general circuits. Its key benefit is reliable switching of up to 25A loads with a versatile 24V AC/DC coil. A primary caveat is its IP20 protection, requiring it to be installed in an enclosure to prevent dust and foreign object ingress. This contactor features two normally closed (NC) contacts, a mechanical position indicator, an Auto-On-Off switch, and an LED status indicator.

All features

Model Part Number22.32.0.024.4440
BrandFinder

Extended Product Information

FAQs

What is the function of the Auto-On-Off switch?

The Auto-On-Off switch allows you to manually set the contactor's state. 'Auto' mode allows it to be controlled by the 24V AC/DC coil signal. 'On' and 'Off' positions force the contacts into a specific state for testing or maintenance without needing the control signal.

Can this contactor be used for Normally Open (NO) circuits?

This specific model only has two Normally Closed (NC) contacts. To control a Normally Open (NO) circuit, you would typically need a different contactor model with NO contacts or use it in combination with other relays to invert the switching logic.

What is the meaning of the AgSnO2 contact material?

AgSnO2 stands for Silver Tin Oxide. This is a contact material known for its good resistance to arc erosion and welding, providing enhanced durability and a longer lifespan compared to other materials, especially in applications with frequent switching.

What are the limitations for fluorescent lamp loads?

For fluorescent lamp loads, the maximum load is 800VA for standard circuits and Duo circuits. For parallel compensated fluorescent lamps, the maximum load is reduced to 500VA.

How do I determine the correct installation location?

The contactor must be installed on a 35mm DIN rail. Due to its IP20 protection rating, it must be housed within an electrical enclosure to safeguard against dust, foreign objects, and accidental contact.

What is the difference between AC and DC coil operation?

The contactor can operate using either an AC or DC power supply for its coil, as long as the voltage is 24V. The internal mechanism adapts to the type of current supplied. Ensure your control circuit provides the correct voltage type.

What does the '17.5mm wide' specification mean?

This refers to the width of the contactor in terms of modular spacings. A standard modular width is 17.5mm, so this contactor occupies the space of one module on a DIN rail, allowing for dense and organized panel layouts.

Troubleshooting

Contactor does not switch (no noise, no contact change)

Verify that the 24V AC/DC control voltage is correctly applied to the coil terminals (A1, A2) and that the voltage level is adequate. Check the Auto-On-Off switch is not in the 'Off' position.

Contactor remains energized (contacts do not open)

Ensure the control voltage is removed from the coil. If the issue persists, the contacts may be welded or the coil may be faulty. Replace the unit.

Overheating or humming sound

Check if the load current exceeds the 25A rating. Ensure proper ventilation around the contactor. Verify the correct load type and power are within specifications (e.g., incandescent lamp load).

LED status indicator not lighting up

Confirm that the coil is receiving the correct 24V AC/DC voltage. The LED is typically lit when the coil is energized. If voltage is present and the LED is off, the unit may be faulty.

Pros and Cons

Pros

  • Compact 17.5mm width saves panel space.
  • Versatile 24V AC/DC coil suits many applications.
  • Durable AgSnO2 contacts ensure longevity.
  • Integrated manual override and status indicators simplify operation and troubleshooting.

Cons

  • Only has Normally Closed (NC) contacts; requires additional components for Normally Open (NO) switching.
  • IP20 rating necessitates installation within an enclosure.
  • Maximum operating voltage is 250VAC for load switching, limiting use in higher voltage systems.
  • Specific load types (e.g., incandescent, fluorescent) have detailed VA/W limitations that must be observed.

Setup, Compatibility & Care

Setup:

  1. Mounting: The contactor is designed to be mounted on a standard 35mm DIN rail.
  2. Wiring: Connect the 24V AC/DC control voltage to the coil terminals (typically marked A1 and A2).
  3. Load Connection: Wire the load circuit through the two normally closed (NC) contacts. Ensure that the live and neutral (or equivalent) wires are correctly routed through the contactor's terminals.
  4. Enclosure: Install the contactor within a suitable electrical enclosure to protect it from dust, moisture, and accidental contact, given its IP20 rating.

Compatibility:

  • Control Voltage: Compatible with 24V AC or 24V DC power supplies. Ensure the supply is stable and within the specified range.
  • Load Voltage: Suitable for AC circuits up to 250V.
  • Load Types: Verify that the load being switched is within the specified limits for incandescent lamps (2000W), fluorescent lamps (800VA), and other AC-1 loads (25A).

Care:

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

Price History

DatePrice
Visit shop