1. Folasaga
This instruction manual provides essential information for the safe and effective installation, operation, and maintenance of the Legrand 412544 CX3 Contactor. Please read this manual thoroughly before installation and use, and retain it for future reference. This device is designed for controlling electrical circuits, typically for switching loads in residential, commercial, or industrial applications.
2. Fa'amatalaga Saogalemu
LAPATAIGA: Electrical installation and maintenance should only be performed by qualified and authorized personnel. Failure to follow these instructions can result in electric shock, fire, or serious injury.
- Always disconnect power at the main circuit breaker or fuse box before installing, servicing, or removing the contactor.
- Ia fa'amautinoa ua ogatasi uma uaea ma tulafono fa'ale-eletise a le atunu'u ma atunu'u.
- Fa'amaonia le voltage and current ratings of the contactor are suitable for the intended application.
- Aua le fa'aogaina le contactor pe afai e foliga mai ua fa'aleagaina.
- Use appropriate personal protective equipment (PPE) during installation and maintenance.
3. Oloa Ua Ovaview
The Legrand 412544 CX3 Contactor is a modular device designed for DIN rail mounting. It features two Normally Open (NO) contacts and is rated for 25 Amperes at 230-250 Volts AC. The contactor includes a manual override function for testing or temporary operation.

Ata 1: Legrand 412544 CX3 Contactor. This image displays the Legrand 412544 CX3 Contactor. Visible features include the 25A rating, 250V operating voltage, and the Legrand brand logo. The front panel shows the manual override lever with 'AUTO' and 'O' (Off) positions, and screw terminals labeled A1, A2 for the coil, and 1, 2, 3, 4 for the main contacts.
Vaega Autu:
- Ituaiga Fa'afeso'ota'i: 2 Normally Open (NO) contacts
- Rated Current (I max): 25 A
- Faagaioiga Voltage (Ue): 230-250 V AC
- Pulea Voltage: 230 V AC
- Numera o Module: 1 (for DIN rail mounting)
- Faiga Fa'atino: L ON SAO
- Ituaiga Terminal: Siu fa'amau
- Ituaiga Actuator: Piston
- Mea fa'afeso'ota'i: Uamea uamea
4. Seti ma Fa'apipi'i
Before proceeding, ensure power is disconnected as per Section 2, "Safety Information."
4.1 Fa'amauina
- Locate an appropriate position on a standard DIN rail within an electrical enclosure.
- Clip the contactor onto the DIN rail. Ensure it is securely fastened.
4.2 Uaea
The contactor features screw terminals for secure electrical connections. Refer to the markings on the device for correct wiring.
- Coil Terminals (Control Circuit): Faʻafesoʻotaʻi le pule voltage (230V AC) to terminals A1 ma A2. A1 is typically for the phase/live wire, and A2 for the neutral.
- Main Contacts (Power Circuit):
- Connect the incoming power supply to terminals 1 ma 3.
- Connect the load to terminals 2 ma 4.
- Ia mautinoa o lo'o mautu ma mausali feso'ota'iga uma e puipuia ai le malepelepe o feso'ota'iga ma le vevela tele.
- Double-check all wiring against the electrical diagram of your installation before restoring power.
5. Fa'atonuga o Galuega
Once installed and wired correctly, the contactor operates by applying voltage to its control coil (A1-A2).
- Fa'agaoioi otometi: A o le pule voltage (230V AC) is applied to terminals A1 and A2, the contactor coil energizes, closing the main contacts (1-2 and 3-4). This allows power to flow to the connected load. When the control voltage is removed, the coil de-energizes, and the contacts open, disconnecting the load.
- Su'e Tusia: The contactor is equipped with a manual override lever on the front panel.
- Move the lever to the 'AUTO' position for normal automatic operation via the control circuit.
- Move the lever to the 'O' (Off) position to manually open the contacts, regardless of the control circuit status. This can be used for maintenance or to ensure the load remains off.
- Some models may also feature a manual 'ON' position for continuous closure of contacts, independent of the control circuit. Refer to the specific markings on your device.
6. Tausiga
The Legrand 412544 CX3 Contactor is designed for reliable, long-term operation with minimal maintenance. However, periodic checks are recommended.
- Su'ega Va'ai: Periodically inspect the contactor for any signs of physical damage, discoloration, or loose connections.
- Fa'amautu o le Fa'ai'uga: Ensure all screw terminals remain tight. Loose connections can lead to overheating and potential failure.
- Fa'amamaina: If necessary, gently clean the exterior of the contactor with a dry, lint-free cloth. Do not use liquids or abrasive cleaners.
- Siakiga Fa'atino: With power disconnected from the load circuit, test the manual override function to ensure smooth operation.
Taua: Ta'ese i taimi uma le paoa a'o le'i faia se tausiga.
7. Faʻafitauli
If the contactor is not functioning as expected, consider the following common issues and solutions:
| Fa'afitauli | Mafuaaga e ono tupu | Fofo |
|---|---|---|
| Contactor does not energize (contacts do not close) |
|
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| Contactor energizes but load does not receive power |
|
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| Contactor makes humming noise |
|
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If problems persist after attempting these solutions, contact a qualified electrician or Legrand customer support.
8. Fa'amatalaga
| Fa'ailoga | Legrand |
| Numera Fa'ata'ita'i | 412544 |
| Rated Current (I max) | 25 A |
| Faagaioiga Voltage (Ue) | 230-250 V AC |
| Pulea Voltage | 230 V AC |
| Ituaiga Faafesootai | 2 E masani ona tatala (LEAI) |
| Numera o Module | 1 |
| Faiga Fa'atino | L ON SAO |
| Ituaiga Terminal | Siu fa'amau |
| Ituaiga Circuit | 2-auala |
| Ituaiga Actuator | Piston |
| Fa'afeso'ota'i Mea | Uamea uamea |
| Fa'amauina | DIN Rail |
9. Fa'amaonia ma Lagolago
For information regarding product warranty, technical support, or service, please refer to the official Legrand website or contact your local Legrand distributor. Keep your purchase receipt as proof of purchase.
Legrand Webnofoaga: www.legrand.com





