Air disconnect switch, modular - horizontal 100A with its own structure for surge arresters SN RNM III SA 24/4/100So 03-775

Medium Voltage Modular Air Disconnect Switch – Reliable Protection for Medium Voltage Networks

This modular air disconnect switch, designed for horizontal mounting, is a key element of power infrastructure. Designed by ALPAR, a manufacturer specializing in solutions for MV networks, it provides safe and efficient connection and disconnection of circuits. Model RNM III SA 24/4/100S is primarily distinguished by its dedicated design for surge arresters, which increases the installation's resistance to sudden voltage surges. This is particularly important in areas prone to storms or other atmospheric disturbances.

Construction and Application

This disconnect switch is part of the RNM III SA series, characterized by a modular construction. This allows for flexible adaptation to different network configurations and easy integration with other infrastructure elements. The design for surge arresters (denoted by "o" in the product code) allows for the mounting of additional protective devices directly on the disconnect switch, optimizing space and simplifying installation. This is an ideal solution for both professional installers and end-users looking for reliable and easy-to-use equipment. Made of high-quality materials, it guarantees long-lasting and trouble-free operation even in harsh environmental conditions.

Key Features and Benefits

• Adapted for surge arresters: dedicated design facilitates the mounting of MV surge arresters RNM III SA 24/4/100So, providing comprehensive protection of the installation against the effects of overvoltage.
• Modular construction: enables flexible adaptation to specific installation needs and easy replacement of individual elements.
• Mechanical durability: provides 2000 Z/W cycles (on/off), guaranteeing long-term reliability.
• Wide range of voltages and currents: rated voltage of 24 kV and rated continuous current of 400 A allow for use in various medium voltage networks.
• Resistance to weather conditions: operation at temperatures from -40°C to +40°C and humidity below 100% ensures reliability in all weather conditions.
• Safety: electrical class E3 and high impulse voltage withstand values (up to 145 kV) guarantee safe operation.
• Easy installation: modular design and dedicated solutions facilitate installation and servicing of the device.
• Use of silicone or composite insulators: the possibility of using silicone or composite insulators increases resistance to dirt and corrosion (versions with "S" or "K" designation are available).

The RNM III SA 24/4/100S disconnect switch is an investment in the safety and reliability of your power network. Its solid construction, advanced features and ease of installation make it an ideal choice for both professionals and end-users who care about stable power supply.