Product Overview: Kobold NSP-SW-04TPK Level Switch
The Kobold NSP-SW-04TPK is a highly reliable plastic level switch designed for monitoring the level of liquids in industrial tanks and vessels. Part of the NSP series, this device is specifically engineered for use with aggressive media where metal components would succumb to corrosion. It operates on the principle of a float with an integrated magnet that triggers a reed contact as the liquid level rises or falls, making it an essential component for chemical processing and water treatment applications.
Technical Specifications and Material Excellence
The NSP-SW-04TPK features a robust construction made from high-quality plastic materials (PP, PVC, or PVDF depending on the variant). The «TPK» designation refers to its specific mounting and connection configuration, typically involving a G 1/2 or G 1 thread. Because the electrical circuit is hermetically sealed within the housing, the switch is protected from the process medium, ensuring a long service life even in humid or corrosive environments. It can be used for both «high-level» and «low-level» detection by simply inverting the float.
Key Technical Characteristics
- Part Number: NSP-SW-04TPK.
- Mounting: Vertical or horizontal (depending on configuration).
- Material: Polypropylene (PP) / PVC / PVDF.
- Contact Type: Reed contact (N/O or N/C).
- Max Pressure: 1 bar at 20°C.
- Temperature Range: -10°C to +80°C.
- Connection: G 1/2 Male thread.
- Protection: IP65.
Operational Benefits and Safety
The Kobold NSP series is valued for its simple installation and maintenance-free operation. Its lightweight plastic design makes it ideal for plastic tanks where heavy metal sensors might cause structural stress. The switching function is exceptionally repeatable, providing safety in overflow prevention systems. It is widely used in the chemical industry, electroplating, and for monitoring detergents in commercial cleaning systems.
| Feature | Detail |
| Switching Capacity | Max 50 VA |
| Specific Gravity | Min 0.6 g/cm³ |
| Cable Type | PVC or Silicone |
Frequently Asked Questions
Is it resistant to acids? Yes, the plastic construction is specifically designed for resistance to various acids and alkalis. Can I change the switching logic? Yes, the reed contact function can be reversed by rotating the float 180 degrees on the guide tube.
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