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Modular contactors of the RD series are used for remote control and automatic monitoring of electrical devices in lighting, heating, and ventilation systems, as well as for switching low-power motors. They combine compactness, versatility, and quiet operation, making them ideal for both industrial and residential applications.
An important feature of the series is the built-in varistor element, which protects against overvoltage and current surges, as well as the universal AC/DC power coil, which ensures silent operation even in residential spaces with high comfort requirements.
Features
- Modular design: 1 to 3 modules, current range 20–63 A.
- Coil power supply: 24 V or 230 V (AC/DC).
- Built-in varistor for surge protection.
- Silent operation thanks to a universal coil.
- Sealable.
- Compatible with additional contact blocks.
- High switching speed and low power consumption.
- Compliance with standards IEC/EN 61095, IEC/EN 60947-4-1, IEC/EN 60947-5-1.
Technical Specifications
- Rated insulation voltage: 440 V
- Rated current: 20–63 A (depending on model)
- Protection rating: IP20
- Operating temperature range: –15…+55°C
- Storage temperature: –30…+80°C
- Humidity: up to 95% RH at +55°C
- Noise level: only 20 dB (EN ISO 60947-4-1)deg;C
- Humidity: up to 95% RH at +55 °C
- Noise level: only 20 dB (EN ISO 3745)
- Mechanical life: up to 1×107 cycles
- Electrical life: up to 500,000 cycles depending on the category
- Switching frequency: up to 600/hour (under load), 3,000/hour (no load)
Switching capacity
AC-1, AC-7a, AC-21: 4 to 40 kW (1-phase/3-phase connection, 230–400 V)
AC-3, AC-7b, AC-23: up to 15 kW (3-phase connection 400 V)
Mounting features
- DIN-rail mounting.
- Maximum of 3 contactors side-by-side at temperatures ≤40°C.
- Maximum of 2 contactors side-by-side at temperatures 40–55°C.
- For a larger number, an intermediate insert IKV (code 2464074) is required.
TOTAL ENERGO LLC offers official supplies of RD series modular contactors with full technical support, warranty, and consulting services. Thanks to their quiet operation and surge protection, they are particularly suitable for residential and commercial premises.