1. Réamhrá
This manual provides comprehensive instructions for the installation, operation, and maintenance of the GEYA GYHC 2P Modular AC Contactor. This device is designed for automatic control in household and light commercial electrical systems, offering reliable switching for various loads. Please read this manual thoroughly before installation and use to ensure safe and efficient operation.

Íomhá 1: Tosaigh view of the GEYA GYHC 2P Modular AC Contactor, showing terminals and specifications.
2. Faisnéis Sábháilteachta
RABHADH: Electrical shock hazard. Installation and maintenance should only be performed by qualified personnel. Disconnect all power before working on the contactor or connected circuits.
- Ensure the main power supply is disconnected before any installation, wiring, or maintenance procedures.
- Deimhnigh go bhfuil an voltage and current ratings of the contactor match the application requirements.
- Bain úsáid as trealamh cosanta pearsanta (TCP) cuí amhail lámhainní inslithe agus spéaclaí sábháilteachta.
- Ná húsáid an teagmhálaí má tá cuma damáiste air nó má bhí sé nochtaithe do thaise.
- Caithfidh gach sreangú cloí le cóid leictreacha áitiúla agus náisiúnta.
3. Gnéithe Táirgí
The GEYA GYHC 2P Modular AC Contactor offers robust performance and versatile application:
- Dual Current Ratings: Available in 40A and 63A options to manage medium to heavy household loads, including air conditioners, water heaters, and small motors.
- Triple Contact Configurations: Choose from 2NO (Normally Open for power switching), 2NC (Normally Closed for circuit isolation), or 1NO1NC (one Normally Open and one Normally Closed for control and feedback) to suit diverse application needs.
- Uilíoch Voltage Comhoiriúnacht: Features a 220V/230V AC coil, compatible with standard 50/60Hz power grids.
- Modular DIN Rail Design: Compact automatic operation model designed for tool-free installation in standard distribution boxes, optimizing space.
- Feidhmchlár: Ideal for household and light commercial use, suitable for remote control of lighting, heating, ventilation, and other electrical appliances.

Image 2: Diagram illustrating the 2P 40A/63A contactor with 2NO, 2NC, and 1NO1NC contact configurations.
4. Suiteáil
The GEYA GYHC contactor is designed for easy installation on a standard 35mm DIN rail.
4.1 Gléasta ar Iarnród DIN
- Ensure all power to the distribution box is OFF.
- Locate an available section of the 35mm DIN rail within your electrical enclosure.
- Align the contactor's DIN rail clip with the rail.
- Press the contactor firmly onto the DIN rail until the clip engages and secures the device in place. Ensure it is stable and does not wobble.


Image 3 & 4: Side views illustrating the DIN rail mounting mechanism of the contactor.
5. Wiring and Operation
Proper wiring is essential for the correct function of the contactor. Refer to the wiring diagram on the product label and the following guidelines.
5.1 Naisc Teirminéil
- Power Terminals (1, 3, 2, 4): These are the main circuit terminals. Connect the incoming power to terminals 1 and 3, and the load to terminals 2 and 4.
- Teirminéil Chorna (A1, A2): These terminals are for the control circuit. Connect the 220V/230V AC control voltage to A1 and A2 to energize the coil and switch the main contacts.

Íomhá 5: Uilleach view of the contactor, highlighting the main power and coil terminals.
5.2 Contact Configurations
The GYHC series offers different contact configurations:
- 2NO (2 Normally Open): Both main contacts are open when the coil is de-energized and close when the coil is energized.
- 2NC (2 Normally Closed): Both main contacts are closed when the coil is de-energized and open when the coil is energized.
- 1NO1NC (1 Normally Open, 1 Normally Closed): One contact is open and the other is closed when the coil is de-energized. They switch states when the coil is energized.

Image 6: Comparison of 2NC, 2NO, and 1NO1NC contactor variants.
5.3 Oibriú de Láimh
Some models may include a manual override lever (often red or orange) at the bottom. This lever allows for manual switching of the contacts for testing or emergency situations. Always ensure power is disconnected before manual operation if there is any risk of electrical hazard.
6. Cothabháil
The GEYA GYHC contactor is designed for long-term, maintenance-free operation under normal conditions. However, periodic checks are recommended:
- Amharciniúchadh: Déan iniúchadh tréimhsiúil ar an teagmhálaí le haghaidh aon chomharthaí damáiste fisiciúil, mílí, nó naisc scaoilte.
- Teannas críochfoirt: Ensure all terminal screws remain tight to prevent overheating and arcing.
- Glaineacht: Keep the contactor free from dust and debris. Use a dry, soft cloth for cleaning. Do not use liquids or solvents.
- Seiceáil Oibríochta: If safe to do so, periodically test the contactor's switching action to ensure it operates smoothly.
7. Fabhtcheartú
If you encounter issues with your GEYA GYHC contactor, refer to the following troubleshooting guide:
- Ní fhuinníonn an teagmhálaí:
- Seiceáil an bhfuil an toirt rialaithetage (220V/230V AC) is present at terminals A1 and A2.
- Deimhnigh go bhfuil an ciorcad rialaithe iomlán agus nach bhfuil aon lasca oscailte ná gléasanna cosanta ann.
- Inspect the coil for damage or signs of overheating.
- Fuinneamh á chur ar an teagmhálaí ach ní fhaigheann an t-ualach cumhacht:
- Ensure the main power supply is connected to terminals 1 and 3.
- Check for continuity across the main contacts (1-2 and 3-4) when the coil is energized.
- Verify that the load is correctly wired to terminals 2 and 4.
- Check for any tripped circuit breakers or blown fuses in the main circuit.
- Contactor Makes Humming Noise:
- A slight hum is normal for AC contactors. Excessive humming may indicate loose mounting, foreign objects, or an issue with the coil or armature.
- Ensure the mounting screws are tight and the contactor is securely seated on the DIN rail.
8. Sonraíochtaí
| Sonraíocht | Luach |
|---|---|
| Branda | GEYA |
| Uimhir Mhúnla | GYHC OEHSNAONS-0ED290E7 |
| Main Circuit Rating Current | 40A/63A |
| Main Circuit Rating Voltage | 220V / 230V AC |
| Coill Voltage | 220V / 230V AC |
| Minicíocht | 50/60Hz |
| Líon na bPolannach | 2 |
| Cumraíochtaí Teagmhála | 2NO, 2NC, 1NO1NC |
| Cineál Gléasta | Iarnród DIN 35mm |
| Sonraíocht Met | UL (as per product data) |
9. Barántas agus Tacaíocht
9.1 Faisnéis Bharántas
This GEYA GYHC 2P Modular AC Contactor is covered by a standard manufacturer's warranty against defects in materials and workmanship. The specific duration and terms of the warranty may vary. Please retain your proof of purchase for warranty claims.
9.2 Tacaíocht Theicniúil
For technical assistance, troubleshooting beyond this manual, or warranty inquiries, please contact the seller or authorized distributor from whom you purchased the product. Provide your product model number and purchase details for efficient support.