📝 Product Overview

The Raychem RAYSTAT-EX-02 Mechanical Line Sensing Thermostat is a rugged, explosion-proof surface sensing thermostat designed to provide reliable and accurate temperature control for industrial electric heat tracing systems. Engineered for use in hazardous and non-hazardous environments, this dependable thermostat provides precise line sensing to maintain required process temperatures and protect piping, equipment, and installations from freezing and temperature-related damage.

Built with a durable cast aluminium enclosure and a stainless steel sensing bulb with capillary, the Raychem RAYSTAT-EX-02 delivers dependable performance in demanding industrial environments. Its robust construction makes it suitable for applications where reliable temperature monitoring and long-term durability are essential. The mechanical operating principle provides straightforward and dependable temperature switching without requiring complex electronic controls.

The thermostat features an externally adjustable temperature setting, allowing operators and maintenance personnel to configure the required temperature without opening the explosion-proof enclosure. This design makes installation, adjustment, inspection, and maintenance more convenient while helping maintain the integrity of the protective enclosure.

The 3 m stainless steel capillary sensing system enables accurate surface temperature measurement, making the thermostat particularly suitable for heat tracing applications where temperature must be monitored directly at the pipe or equipment surface. With its high switching capacity and SPDT volt-free contacts, the Raychem RAYSTAT-EX-02 can be integrated into a wide range of industrial heat tracing control systems.

Its dependable design supports temperature management across critical industrial systems, helping operators maintain stable operating conditions with minimal intervention. The adjustable control and robust sensing assembly make it a convenient choice for installations requiring consistent monitoring. This makes it suitable for demanding facilities where reliability, durability, and straightforward operation are important.

Specifications Details of Raychem RAYSTAT-EX-02

🔧 Key Specifications

Model Number: RAYSTAT-EX-02 (404385-000)

by Rewaltech Engineering (rewaltechengineering.com)

Type: Mechanical Line Sensing Thermostat

Series: nVent Raychem Heat Trace Control

Temperature Setting Range: -4°C to +163°C

Sensor Type: Surface sensing bulb with 3 m stainless steel capillary

Switching Capacity: 22 A, Single Pole Double Throw (SPDT) Volt-Free Contacts

Cable Entry: 1 × 3/4″ NPT

Enclosure Material: Cast Aluminium with Stainless Steel Fittings

Protection Rating: IP66 (when installed with approved cable glands)

Ambient Operating Temperature: -40°C to +60°C

Mounting: Pipe mounting or surface mounting

Application: Industrial heat tracing temperature control in hazardous and ordinary areas

💡 Features & Benefits

✔ Accurate mechanical line sensing for reliable temperature control

✔ Externally adjustable thermostat setting without opening the enclosure

✔ Explosion-proof design for hazardous area installations

✔ Heavy-duty cast aluminium enclosure for maximum durability

✔ Stainless steel sensing bulb and capillary for long service life

✔ Suitable for freeze protection and process temperature maintenance

✔ Pipe or surface mounting for flexible installation

✔ Reliable, maintenance-friendly operation in harsh industrial environments

✔ High switching capacity suitable for industrial heat tracing control applications

✔ Durable construction designed for demanding industrial operating conditions

✔ Helps maintain consistent temperatures and reduce the risk of freezing

✔ Simple mechanical operation for dependable temperature switching

🏭 Typical Applications

• Industrial electric heat tracing systems
• Oil & gas facilities
• Chemical processing plants
• Power generation plants
• Water and wastewater treatment facilities
• Pipe freeze protection
• Process temperature maintenance
• Storage tanks and vessels
• Industrial piping systems
• Equipment and process line temperature control
• Industrial facilities requiring dependable mechanical temperature control

📦 What’s Included

• Raychem RAYSTAT-EX-02 Mechanical Line Sensing Thermostat
• Stainless steel sensing bulb with 3 m capillary

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