ZR011 Bimetallic Cabinet Thermostat | 0–60°C DIN Rail Mount

ZR011 Compact Mechanical Bimetallic Cabinet Thermostat

The ZR011 Bimetallic Cabinet Thermostat is a compact, high-quality mechanical temperature controller designed for electrical enclosures, industrial cabinets, and automation panels. With a combined heating and cooling function in one unit, the ZR011 independently manages both electric heaters and cooling filter fans — keeping your equipment running at optimal temperatures without complex wiring or digital controllers.

Built for reliability in demanding environments, this thermostat features a snap-action bimetallic sensor, a service life exceeding 100,000 cycles, and an IP20-rated light grey plastic casing. Its standard DIN rail clip mounting (35mm, EN60715) makes installation fast and tool-friendly.

Key Features

• Dual Function (Heat + Cool): Combines KTO 011 (normally closed – heating control) and KTS 011 (normally open – cooling/fan control) in a single ZR011 unit for independent regulation of heating and cooling devices.
• Control Range: 0°C to 60°C (32°F to 140°F), suitable for a wide range of cabinet environments.
• Snap-Action Contact: Thermostatic bimetallic sensor element with reliable snap-action contacts for precise switching.
• Long Service Life: Rated for over 100,000 operating cycles for years of dependable performance.
• Easy DIN Rail Mounting: Clip-on design for 35mm DIN rail (EN60715) — installs and removes in seconds.
• Adjustable Set Point: Large dial with red/blue button option for intuitive temperature adjustment.
• Sturdy Connections: Bottom-mounted circuit interfaces with clamping torque up to 0.5 Nm, supporting rigid wire up to 2.5mm for secure, safe wiring.
• Eco-Friendly Casing: High-quality, durable light grey plastic — safe and environmentally responsible.

Technical Specifications

Applications

The ZR011 is widely used across industrial and commercial sectors to regulate temperature inside electrical enclosures, preventing equipment damage caused by heat build-up or condensation. Ideal for:

• Electrical and control cabinets
• Telecommunications equipment enclosures
• Wind power generation systems
• Firefighting and marine equipment
• Petrochemical and large industrial factory panels
• Water treatment facility control boxes
• Coastal facilities and dock installations
• Low/high-temperature alarm signal devices

Set Point Example (Heating Mode – KTO011 Normally Closed)

Required minimum enclosure temperature: 5°C (41°F)
Hysteresis allowance: +11K (= 7K ± 4K)
Recommended dial set point: 16°C (61°F)

Package Contents

• 1 × ZR011 Bimetallic Cabinet Thermostat

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For more information on electrical enclosure safety standards, visit the OSHA Electrical Safety resource page.

Frequently Asked Questions

Q: What is the difference between the KTO 011, KTS 011, and ZR011 thermostat models?

A: The KTO 011 is a normally closed (heat) thermostat that activates electric heaters when temperatures drop below the set point. The KTS 011 is a normally open (cool) thermostat that activates filter fans or heat exchangers when temperatures rise above the set point. The ZR011 combines both functions in a single unit, allowing you to independently control both heating and cooling devices from one thermostat.

Q: How do I install the ZR011 thermostat on a DIN rail?

A: The ZR011 features a clip-on design compatible with standard 35mm DIN rails (EN60715). Simply press the clip onto the rail until it snaps into place. No special tools are required. Wire connections are made at the bottom-mounted circuit interfaces using rigid wire up to 2.5mm with a clamping torque of up to 0.5 Nm.

Q: What temperature range can the ZR011 control?

A: The ZR011 has an adjustable control range of 0°C to 60°C (32°F to 140°F). When setting the dial, be sure to account for the switching hysteresis of 7K (±4K) to determine your actual operating set point accurately.

Q: Is the ZR011 suitable for outdoor or humid environments?

A: The ZR011 carries an IP20 protection rating, which means it is designed for use inside enclosures or panels rather than direct outdoor exposure. It can operate in environments with up to 90% relative humidity (non-condensing) and withstand storage temperatures from -20°C to +80°C.