1. Introducció
The GEYA GYHC series modular contactor is designed with a new technology platform, utilizing automated production and testing equipment to ensure advanced ultra-quiet operation and extended lifespan. This contactor is suitable for various applications including remote control systems, lighting, heating, ventilation, rolling curtains, public hot water systems, mechanical ventilation systems, and environments with low inductive micro-inductive loads.
Key features of the GYHC series include:
- Baix consum d'energia: The optimized electromagnetic system significantly reduces the holding power, addressing the high energy consumption issues of traditional contactors.
- Baix soroll: A new design approach and automated manufacturing processes minimize operational noise, enhancing product reliability.
- Super Long Life: Boasts an electrical life exceeding 100,000 operations and a mechanical life of over 12,000,000 operations.
Available contact configurations include: 2 Normally Open (2NO), 1 Normally Open + 1 Normally Closed (1NO1NC), and 2 Normally Closed (2NC).
2. Especificacions
2.1 Dades tècniques generals
| Característic | Valor |
|---|---|
| Nom de marca | GEYA |
| Número de model | GYHC Household AC Modular Contactor |
| Main Circuit Rating Current | 25A |
| Main Circuit Rating Voltage | DC24V, DC12V (Coil Voltage) |
| Principal Voltage | AC220V-240V |
| Tipus d'electricitat | AC |
| Nombre de pols | 2 |
| Fase | 2 |
| Certificació | CE |
| Vida elèctrica | 100,000 vegades |
| Vida mecànica | 12,000,000 vegades |
| AC-7a Application | Household Appliances (Low Inductive Loads) |
| AC-7b Application | Household Electric Motor Load |
| Aïllament nominal Voltage (Ui) | 500 VCA |
| Classe de contaminació | 2 |
| Resistència d'impuls nominal Voltage (Uimp) | 4kV |
| Protection Grade (Contactor only) | IP20 |
| Protection Grade (Contactor in modular enclosure) | IP40 |
| Temperatura de funcionament | -5 °C a +60 °C |
| Temperatura d'emmagatzematge | -40 °C a +70 °C |
| Tropicalization (Relative humidity) | 95% at 55°C (Treatment 2) |
2.2 Contact Configuration and Ratings
| Tipus | Rated Current (AC-7a) | Rated Current (AC-7b) | Control Voltage (V AC) (50/60Hz) | Contacte |
|---|---|---|---|---|
| 1P | 16A | 6A | 24V/48V/110V/230V | 1NO |
| 20A | 7A | 1NC | ||
| 25A | 9A | |||
| 2P | 16A | 6A | 2NO | |
| 20A | 7A | 2NC | ||
| 25A | 9A | 1NO1NC | ||
| 32A | 12A | |||
| 40A | 15A | |||
| 63A | 20A | |||
| 3P | 16A | 6A | 3NO | |
| 20A | 7A | 3NC | ||
| 25A | 9A | |||
| 4P | 16A | 6A | 24V/48V/110V/230V | 4NO |
| 20A | 7A | 4NC | ||
| 25A | 9A | 2NO2NC | ||
| 32A | 12A | 3NO1NC | ||
| 40A | 15A | |||
| 63A | 20A |
2.3 Dimensions

3. Configuració i instal·lació
The GEYA GYHC modular contactor is designed for Din Rail mounting. Ensure all installations are performed by a qualified electrician and comply with local electrical codes and safety regulations.
3.1 Muntatge
- Mount the contactor securely onto a standard 35mm DIN rail.
- Ensure adequate ventilation around the contactor to maintain operating temperature within specified limits (-5°C to +60°C).
3.2 Cablejat
Consulteu el cablejat examples and technical data for correct connections. Pay close attention to coil control voltage (DC12V or DC24V) and main circuit voltage (AC220V-240V).
| Tipus | Corrent nominal (in) | Longitud de pelat de filferro | Circuit | Torque | Fil de coure | Soft Wire or Hoop Wire Terminal |
|---|---|---|---|---|---|---|
| KCH8 | 16-63A | 9 mm | Circuit de control | 1.2 N·m | 1.5-2.5 mm² | 1.5-2.5 mm² |
| 16-25A | 14 mm | Circuit de potència | 3.5 N·m | 6-25 mm² | 6-16 mm² | |
| AS | PZ1.4mm | 9 mm | 1.2 N·m | 1.5-2.5 mm² | 1.5-2.5 mm² |


The contactor features a transparent flip cover design for easy insertion and identification of wiring labels.

4. Instruccions de funcionament
Once correctly installed and wired, the GEYA GYHC modular contactor operates by receiving a control voltage (DC12V or DC24V) to its coil, which then switches the main power circuit (AC220V-240V) to connected loads.
- Indicator Window: The contactor is equipped with an indicator window that visually displays its on/off state.
- Aplicacions: This contactor is ideal for controlling various household and commercial loads, including lighting circuits, heating elements, ventilation fans, motorized curtains, and other low inductive loads.
5. Manteniment
The GEYA GYHC modular contactor is designed for long-term, reliable operation with minimal maintenance. However, regular checks can help ensure optimal performance and safety.
- Inspecció visual: Inspeccioneu periòdicament el contactor per detectar qualsevol signe de danys físics, decoloració o connexions soltes.
- Integritat de la connexió: Ensure all wiring connections remain tight. Loose connections can lead to overheating and potential hazards.
- Condicions ambientals: Verify that the operating environment remains within the specified temperature and humidity ranges to prevent premature wear.
- Neteja: If necessary, gently clean the exterior of the contactor with a dry, soft cloth. Do not use liquids or abrasive cleaners.
Desconnecteu sempre l'alimentació abans de realitzar qualsevol inspecció o manteniment.
6. Solució De Problemes
Si el contactor no funciona com s'espera, tingueu en compte els següents problemes comuns:
- Contactador no activat:
- Comproveu si el volum de control és correctetage (DC12V or DC24V) is being supplied to the coil terminals (A1/A2).
- Verify that the control circuit is complete and there are no breaks in the wiring.
- Ensure the main power supply to the contactor is active.
- Contactor Overheating:
- Check for loose wiring connections, which can cause resistance and heat buildup.
- Ensure the load current does not exceed the contactor's rated current (25A for this model).
- Verify that the ambient operating temperature is within the specified range (-5°C to +60°C) and there is adequate ventilation.
- Indicator Window Not Showing State:
- This may indicate a mechanical failure or an issue with the coil engagement. Check the control voltage and listen for the audible click of the contactor engaging.
For complex issues or if you are unsure, consult a qualified electrician.
7. Consells d'usuari
- Mida adequada: Always ensure the contactor's current rating (e.g., 25A) is appropriate for the connected load to prevent overloading.
- Bobina Voltagpartit electrònic: Double-check that the control voltage supplied to the contactor coil (DC12V or DC24V) precisely matches the contactor's specification to avoid damage.
- Etiquetatge clar: Utilize the transparent flip cover design to insert clear labels for each circuit controlled by the contactor, aiding in future maintenance and troubleshooting.
- Instal·lació professional: For safety and optimal performance, it is highly recommended to have the contactor installed by a certified electrician.
8. Garantia i Suport
The GEYA GYHC Modular Contactor is manufactured to high-quality standards and is CE certified, indicating compliance with European safety, health, and environmental protection requirements.
For warranty information, technical support, or service inquiries, please contact GEYA Electricals Store directly or refer to their official weblloc.






