High-Temperature Industrial Limit Switch - 350°C Rated
✨Features
Product Introduction
The AWLCA2 High-Temperature Limit Switch is a specialized precision switch designed for extreme thermal environments. While maintaining the standard footprint and actuation characteristics of general-purpose switches, it utilizes high-grade heat-resistant materials to withstand temperatures ranging from -25 C to +350 C.
Ideal for applications in ceramic kilns, steel mills, glass manufacturing furnaces, and plastic injection molding, this switch ensures consistent position detection where standard plastic/rubber switches would melt or fail. It combines this thermal resilience with a rugged IP67 enclosure and a long mechanical life of 15,000,000 operations, providing a "fit and forget" solution for difficult access areas.
Size and Structure
| Parameter | Specification |
|---|---|
| Operating Speed | 1 mm ... 2 m/s |
| Operating Frequency | Mechanical: 120 operations/min |
| Electrical: 30 operations/min | |
| Contact Resistance | < 15 mOhm (Initial value) |
| Insulation Resistance | > 100 MOhm (at 500 VDC) |
| Dielectric Strength | Between non-continuous terminals: 1,000 VAC, 50/60Hz for 1 min |
| Between current-carrying metal parts and ground: 2,200 VAC, 50/60Hz for 1 min | |
| Vibration Resistance | Malfunction: 10 ... 55 Hz, 1.5mm Double Amplitude |
| Shock Resistance | Mechanical Durability: 1,000 m/s^2 (approx. 100G) |
| Malfunction Durability: 300 m/s^2 (approx. 30G) | |
| Ambient Temperature | -25 C ... +350 C |
| Ambient Humidity | Max 95% RH |
| Service Life (Durability) | Mechanical: > 15,000,000 operations (at rated OT) |
| Electrical: > 500,000 operations | |
| Protection Degree | IP66 / IP67 |
| Weight | Approx. 275g |
FAQ
Q：What makes this switch capable of handling 350°C?
A：Standard switches use rubber seals and plastic internals that degrade at high heat. This model typically uses ceramic internal plungers, heat-resistant silicone or fluorocarbon seals, and specialized lubricants designed not to liquefy or carbonize at 350°C, ensuring the switch mechanism does not seize up.
Q：Can this switch be used in wet areas?
A：Yes. It is rated IP66/IP67.
IP66: Protected against powerful water jets.
IP67: Protected against the effects of temporary immersion in water (up to 1m depth for 30 mins).
However, please check if the connecting cable you use is also rated for high temperatures if the water/steam is hot.
Q：Why is the dielectric strength (2,200 VAC) important?
A：This specification measures how well the switch isolates the electricity. A high rating of 2,200 VAC between the live parts and the metal housing (ground) ensures that even if there is a voltage spike in the factory power supply, the switch will not arc over to the casing, protecting both the machine electronics and the operators touching the equipment.
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