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Modelos relacionados y alternativos
We can also supply similar three-phase power protection relays and elevator electrical control components.
Since compatibility depends on the rated voltage, frequency, terminal arrangement, contact capacity, and protection function, no unverified alternative model numbers are listed here. Please send us a photo of the original relay label and wiring if you need help confirming a similar model.
¿Por qué elegir Potensi?
- Cobertura de mercado del 99%: Podemos suministrar cerca de 99% de repuestos para ascensores disponibles en el mercado.
- Garantía de calidad auténtica: Suministramos componentes para ascensores originales y fiables.
- Asistencia especializada en identificación: Send us the model number or product photos, and we can help confirm the correct part.
- Envíos internacionales: Ofrecemos un servicio de envío internacional rápido y fiable para proyectos de mantenimiento de ascensores.
Preguntas frecuentes
Q1: What is the function of the FD-RB03A relay?
R: The FD-RB03A monitors a three-phase power supply and uses relay contacts to provide protection and control signals for compatible elevator or motor control systems.
Q2: What is the rated voltage of this relay?
R: The product label indicates a rated voltage of 380 VAC at 50/60 Hz.
Q3: What is the contact capacity?
R: The label indicates a contact capacity of AC250V / 3A.
Q4: What do the terminals L1, L2, and L3 represent?
R: L1, L2, and L3 are the three-phase power input terminals. Terminals 11, 12, and 14 are the relay contact terminals shown on the product label.
Q5: Can you help confirm the correct model if I am not sure?
R: Yes. Please send clear photos of the original relay, product label, wiring, terminals, and installation position. Our technical team can help identify the correct model.
Q6: Do you supply other elevator electrical components?
R: Yes. We supply power protection relays, contactors, relays, PCBs, sensors, switches, and other elevator spare parts.

