Description
Product Overview
The Obida 250F 36TX16 Thermostat Controller is a purpose‑built device for industrial heating systems where precise temperature management and reliable limit‑switch operation are critical. Engineered from high‑grade alloy steel, the unit combines rugged durability with a compact footprint measuring just 3.03 x 2.76 x 0.47 inches, making it easy to install in tight control panels. Its analog display provides an immediate visual cue of the current temperature setting, eliminating the need for additional digital readouts while maintaining a classic, easy‑to‑interpret interface.
Designed with a push‑button and mechanical knob, the controller offers both quick manual reset capability and fine‑tuned temperature adjustments. The manual reset function is especially valuable for rollout limit switches, allowing operators to quickly clear a tripped condition and resume normal operation without the need for complex programming steps. The programmable nature of the device means it can be calibrated to a wide range of temperature set points, accommodating diverse furnace types and process requirements.</n
Obida’s commitment to quality is evident in the choice of materials and manufacturing processes. The alloy steel housing resists corrosion, impact, and the high‑temperature environments typical of industrial furnaces. Internally, the controller utilizes precision‑engineered components that deliver consistent performance over thousands of operating cycles. The device’s low weight of 0.176 ounces further simplifies handling and installation, reducing the strain on mounting hardware.
With a best‑seller rank of #6 in Thermostat Controllers and a solid 4.1‑star rating from verified customers, the 250F 36TX16 has proven its reliability in real‑world applications. Its universal compatibility with a range of furnace models—including those identified by part numbers 36TX16, 611868, SLR250, L250F, 47-22861-03, 78L29, and 78L2901—makes it a versatile replacement part for maintenance teams seeking a single, dependable solution.
![[Product front view showing all components]](https://www.agnex.store/wp-content/uploads/2026/08/775f7fb8e4e8452c9feced97eb5e38fe.jpg)
Usage
The 250F 36TX16 controller excels in environments where temperature stability and rapid response to limit‑switch events are essential. Typical installations include metal‑working furnaces, heat‑treatment ovens, and large‑scale drying chambers. In each scenario, the controller monitors the temperature set point and activates the heating elements accordingly, while the manual reset feature allows operators to quickly address any safety‑triggered shutdowns caused by rollout limit switches.
Because the device does not rely on backlighting, it is well suited for installations where ambient lighting conditions are sufficient, reducing power consumption and extending the lifespan of the unit. The analog display, free of digital glare, remains legible even in bright workshop settings, ensuring that technicians can verify temperature settings at a glance.
Installation is straightforward: the controller’s mounting holes align with standard thermostat brackets, and the compact dimensions allow it to fit into existing control panels without extensive modifications. Wiring follows conventional conventions for thermostat controllers, and the clear labeling on the unit helps reduce wiring errors during setup or replacement.
For facilities that operate 24/7, the durable alloy steel construction provides resistance to vibration, dust, and occasional exposure to coolant splashes, making the controller a low‑maintenance choice that can endure the rigors of continuous operation.
Why Choose Us
Choosing the Obida 250F 36TX16 means selecting a product backed by a manufacturer with a long history of delivering reliable industrial controls. Obida’s quality assurance program includes rigorous testing of each unit for temperature accuracy, mechanical endurance, and electrical safety, ensuring that every controller meets or exceeds industry standards.
Our after‑sales support includes a dedicated technical assistance line, comprehensive installation guides, and a responsive warranty service that covers defects in materials and workmanship. Customers benefit from quick replacement parts availability, minimizing downtime in critical processes.
Beyond the core specifications, the controller’s design emphasizes user‑friendly operation. The mechanical knob provides tactile feedback for precise adjustments, while the push‑button reset is positioned for easy access, reducing the time required to restore normal operation after a limit‑switch event.
Obida also prioritizes sustainability. The alloy steel housing is recyclable, and the analog design eliminates the need for batteries or additional electronic components, contributing to a lower environmental footprint over the product’s lifecycle.
Key Features
- Rugged alloy steel housing resists corrosion and impact for long‑term durability.
- Manual reset button quickly clears rollout limit‑switch trips, reducing downtime.
- Analog temperature display offers instant, easy‑to‑read set‑point verification.
- Compact dimensions fit standard thermostat brackets without panel modifications.
- Responsive technical support and warranty service ensure reliable after‑sales assistance.
FAQ
What types of furnaces are compatible with the 250F 36TX16 controller?
The controller is compatible with a wide range of industrial furnaces, including metal‑working ovens, heat‑treatment chambers, and drying units. It matches several OEM part numbers such as 36TX16, 611868, SLR250, L250F, 47-22861-03, 78L29, and 78L2901, making it a universal replacement for many existing systems.
How does the manual reset function work?
When a rollout limit switch trips, the controller’s push‑button reset allows the operator to clear the fault condition manually. Pressing the button re‑enables the heating circuit, restoring normal temperature regulation without the need for complex re‑programming.
Is the analog display affected by low ambient light?
The analog display is designed for clear visibility under typical workshop lighting. While it does not have a backlight, the high‑contrast markings remain legible in well‑lit environments. For darker areas, supplemental lighting can be added without impacting the controller’s performance.
What maintenance is required for the controller?
Maintenance is minimal. Periodic visual inspections to ensure the housing remains free of dust and debris are recommended. The mechanical knob and reset button should be exercised occasionally to keep the moving parts free of corrosion. No calibration is required unless the temperature set point range is changed.
Can the controller be programmed for different temperature ranges?
Yes, the controller is programmable. Users can adjust the set point using the mechanical knob to suit the specific temperature range required by their process. The analog scale provides a clear reference, allowing precise adjustments within the device’s operating limits.








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