Towa Seiden Kogyo Co.
Towa Seiden HL-400N Paddle Type Level Switch Separate Type

Manufacturer: Towa Seiden Kogyo Co., Ltd.
Model: HL-400N
Features
The Paddle-Type Level Switch is highly versatile, capable of measuring the levels of nearly all powders and particles, ensuring broad applicability. Additionally, with a wide range of available options, it can adapt to various operating environments, offering flexibility across different settings. Moreover, the design is simple and easy to handle by anyone, eliminating the need for adjustments. Due to its straightforward mechanical structure, the operation principle is intuitive and easy to grasp, making it a reliable choice for numerous industrial applications.
This design separates the paddle shaft and the mounting nut from the main body, so it improves maintenance and handling. Moreover, it increases durability during long-term operation. In addition, the roll-pin structure strengthens the paddle shaft. Therefore, it reduces the risk of pin breakage during continuous use. As a result, the unit performs reliably in demanding environments. Furthermore, this structure suits applications where mechanical stress is a concern. Consequently, users gain higher safety, stability, and operational confidence.
Specifications
| Specifications | |
|---|---|
| Power Supply Voltage | AC100/110V 50/60Hz Optional: AC200/220V 50/60Hz (other voltages available) |
| Mounting | Threaded type G3/4 |
| Power Consumption | 1.5W |
| Contact Output | 1C contact, AC250V 5A (resistive load) |
| Detection Torque | Approx. 4.9 N·cm |
| Slip Torque | 2.0 – 17.0 N·cm |
| Rotation Speed | 1 RPM |
| Material | Body case / Flange: Zinc die-cast Shaft / Spring: SUS304 Seal: Nitrile rubber, Silicone rubber (heat-resistant) |
| Operating Temperature | Inside tank: Max. 60°C Outside tank: Max. 55°C |
| Operating Pressure | Tank internal pressure: 0 – 30 kPa |
| Paint Color | Munsell 7.5BG4/1.5 |
| Lead Wire | VCTF 0.75 sq × 5C, 500 mm length (UL-compliant wire type also available) |
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