Factory Original 250V 16A Bimetallic Adjustable Kst Thermostat for Electric Oven

• Customization: Available
• Certification: CB, CE, TUV UL
• Display Type: Kst Thermostat
• Model NO.: KST-101
• Rated Voltage & Current: AC 125V/15A, AC 250V/16A
• Temperature Control Range: 80-250℃ (Adjustable)
• on/off Temperature Difference: 10℃~40℃
• Contact Resistance: ≤50MΩ
• Insulation Resistance: >100MΩ
• Leakage Current: ≤0.25mA
• Temperature Control Accuracy: Tolerance ±5℃~±15℃
• Maximum Ambient Temperature: 250℃
• Rated Frequency: 50/60Hz
• Mechanical Life: ≥ 100,000 on/off Cycles
• Adjustable Shaft Rotation Angle: Selectable From 0° to 310° (Like 180°,270°,300°)
• Transport Package: Carton Packaging
• Specification: AC 125V/15A, AC 250V/16A
• Trademark: Thermal International
• Origin: China
• HS Code: 9032100000
• Production Capacity: 80, 000PCS/Week
• Package Size: 35.00cm * 30.00cm * 30.00cm
• Package Gross Weight: 9.000kg

Product Description

Product Description

Factory Original 250V 16A Bimetallic Adjustable KST Thermostat for Electric Oven

KST bimetallic thermostats are flashing mechanical temperature switches (a type of bimetallic strip thermostat).

Their core function is to switch the circuit on and off through the thermal deformation of the bimetallic strip. They are primarily used for temperature control or overheat protection in small to medium power heating equipment, and are a low-cost, highly reliable temperature control component for small household appliances and industrial equipment.

Working Principle: 
The core mechanism is the "jump-type" action of a bimetallic strip and an energy storage spring:
1. Temperature Sensing Stage: The bimetallic strip (composed of two metals with different coefficients of thermal expansion pressed together) directly contacts the surface of the controlled equipment, bending and deforming with temperature changes;
2. Energy Accumulation: The deformation force of the bimetallic strip gradually acts on the energy storage spring. When the deformation reaches a threshold, the energy storage spring performs a jump-type action (time < 0.2 seconds);
3. Circuit Connection/Disconnection: The jump-type action pushes the contacts open (when the temperature is too high), cutting off the heating circuit; after the temperature drops, the bimetallic strip recovers, the energy storage spring jumps in the opposite direction, and the contacts close again;
4. Temperature Adjustment: The operating temperature can be changed by adjusting the initial deformation of the bimetallic strip using a knob/screw (some models have a fixed value and are not adjustable).

Specification

Product Name	Bimetallic KST Thermostat
Model Number	ZH-101 (corresponding to KST-200 series)
Operating temperature range	80-250℃ (adjustable)
Electrical ratings	AC 125V 16A, AC 250V 16A
Temperature control accuracy	Tolerance: ±5℃ - ±15℃.  For ordinary small household appliances, ±5℃ - ±10℃ is sufficient.  For high-precision applications, models with stricter tolerances can be selected.
Electrical strength	It can withstand AC 2000V voltage for 1 minute without breakdown or flashover, ensuring electrical safety under high-temperature conditions.
Contact resistance	≤50mΩ
Insulation resistance	>100MΩ
Leakage current	≤0.25mA
Rated frequency	50/60Hz
ON/OFF temperature difference	10℃ - 40℃. This temperature difference determines the width of the equipment's constant temperature range. A suitable model can be selected based on the equipment's constant temperature requirements.
Maximum ambient temperature	Can withstand up to 250℃ Suitable for use in high-temperature environments such as electric ovens and deep fryers.
Service life	≥100,000 on/off cycles
Adjustable shaft rotation angle	Selectable from 0° to 310°, with common options including 180°, 270°, and 300°
Terminal block specifications	The mainstream sizes are 6.3×0.8mm and 4.8×0.8mm, while also supporting M3 and M4 size terminals. This allows for compatibility with different wire diameters. For 5A current, 0.5-1mm² wire is recommended; for 10A current, 0.75-1.5mm² wire is recommended.
Starting Angle	Taking the KST-500 series as an example, the lamp angle or ON angle is 90°±15°, which can be customized to ensure the coordination between the thermostat and the equipment's switching action.
Certification	CE CB TUV UL

Detailed Temperature Ranges and Corresponding Applications:

KST thermostats typically have temperature ranges divided into segments from 50℃ to 250℃,

with different temperatures corresponding to different electrical applications:

Temperature Range	Typical Application Scenarios	Compatible Model Examples
50℃-80℃	Bottle warmer, dehydrator, small warming appliances	KST-820 (70℃ model)
80℃-120℃	Electric griddle, sandwich maker, electric hot pot	KST-200 (including ZH-001), KST-820
120℃-180℃	Toaster, waffle maker, air fryer	KST-200 (including ZH-001), KST-500
180℃-220℃	Electric oven (medium temperature setting), deep fryer	KST-200 (including ZH-001), KST-300
220℃-250℃	Electric oven (high temperature setting), heat gun	KST-200 (including ZH-001), KST-200

Product Pictures

Workshop Pictures

Packing & Delivery

Certifications

FAQ

FAQ

Q1 Are you trader? 
A1 We are factory.
 
Q2 What's your lead time for 5000pcs?
A2 We need around 20days after down payment received. .
 
Q3 You payment term?
A3 We accept LC, T/T 20% remittance +80% before delivery, DP.
 
Q4 Can we print our LOGO on heating element?
A4 Yes.
 
Q5 Do you offer guarantee? 
A5 Yes. We offer 1 year guarantee.