Fenwal 11-030002-000 Thermoswitch

The Fenwal 11-030002-000 Thermoswitch is a high-precision surface mount temperature control designed for demanding industrial and commercial thermal management. Operating on Fenwal’s proprietary differential metal expansion principle, this controller provides a fast, accurate response to temperature fluctuations, ensuring critical equipment protection. With an adjustable temperature range of 50°F to 600°F and a dependable open on rise switch action, it is a versatile solution for heating platens, plastic laminating presses, and dental equipment. The compact footprint and narrow differential make it an ideal choice for localized sensing where space is at a premium and high-accuracy thermal feedback is required. Rated for up to 1200W resistive loads at 120V/240V AC, this part is built to handle heavy-duty cycles in pressure washers, food warming trays, and popcorn machines without drifting. Whether you are performing a field replacement or an OEM installation, this UL recognized and CSA certified thermoswitch ensures long-term operational stability.

Key Technician Benefits

• Wide Operating Range: Fully adjustable from 50°F to 600°F, covering a broad spectrum of thermal applications with a single SKU.
• High Load Rating: Supports 1200W resistive loads, reducing the need for additional relays in many standard 120V/240V circuits.
• Superior Thermal Sensitivity: Utilizing metal expansion technology, the sensor reacts faster than standard bimetal discs for tighter process control.
• Rugged Surface Mounting: Designed for direct attachment to flat surfaces, maximizing heat transfer and sensing accuracy.
• Field Proven Reliability: Industry-standard component recognized for durability in high-vibration and high-heat environments.

Common Questions

Is the Fenwal 11-030002-000 suitable for DC applications?
These units are primarily rated for AC resistive loads; for DC applications or inductive loads, we recommend using a relay to prevent contact arcing and ensure a clean break.

How do I adjust the temperature setpoint on this surface mount model?
Adjustment is typically performed via the central screw; however, for precise calibration in critical applications, technicians should use a calibrated surface thermometer during the initial setup.

Can this be used as a high-limit safety switch?
Yes, because the switch is configured to "open on rise," it is commonly utilized as a safety cut-off to de-energize heating elements when a maximum temperature threshold is reached.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.