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  • KSD306 Manual Reset Temperature Cutoff Switch Thermal Protector Bimetal Thermostat for Electric Water Heater
  • KSD306 Manual Reset Temperature Cutoff Switch Thermal Protector Bimetal Thermostat for Electric Water Heater
  • KSD306 Manual Reset Temperature Cutoff Switch Thermal Protector Bimetal Thermostat for Electric Water Heater
  • KSD306 Manual Reset Temperature Cutoff Switch Thermal Protector Bimetal Thermostat for Electric Water Heater
  • KSD306 Manual Reset Temperature Cutoff Switch Thermal Protector Bimetal Thermostat for Electric Water Heater
  • KSD306 Manual Reset Temperature Cutoff Switch Thermal Protector Bimetal Thermostat for Electric Water Heater
KSD306 Manual Reset Temperature Cutoff Switch Thermal Protector Bimetal Thermostat for Electric Water Heater

KSD306 Manual Reset Temperature Cutoff Switch Thermal Protector Bimetal Thermostat for Electric Water Heater

$0.56-$1.20/ Piece|1000 Piece/Pieces(Min. Order)

Customization:

Customized logo(Min.Order: 999999 pieces)

KSD306 Manual Reset Temperature Cutoff Switch Thermal Protector Bimetal Thermostat for Electric Water Heater

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Temperature Control: Utilizes a bimetallic mechanism to automatically cut off power when overheating occurs, ensuring safety in electric water heaters and heating systems.
  • Manual Reset: Requires manual reactivation after cooling, providing a fail-safe measure against unintended restarts.

Key features

  • 1. Material Technology: Bimetallic Construction for Precision & Durability

  • With a bimetallic strip, you can achieve precise thermal cutoff at predefined temperatures, ensuring safe operation in electric water heaters. The corrosion-resistant metal body withstands harsh environments, such as outdoor or humid conditions*, outperforming plastic-bodied switches in durability.

  • 2. Interactive Design: Manual Reset for Controlled Safety

  • With a manual reset design, you can intentionally restart the device after overheating, avoiding accidental reactivation unlike automatic reset switches. Adjustable temperature settings allow customization for specific appliance requirements, enhancing adaptability.

  • 3. Performance Parameters: High-Temperature Tolerance & Rapid Response

  • With high-temperature tolerance up to 200°C+, this switch ensures reliable operation in demanding applications like commercial water heaters. The bimetal strip responds 30% faster to temperature changes than standard thermal sensors*, maintaining consistent performance.

  • 4. Scenario Solutions: Versatile Use in Home & Commercial Settings

  • Designed for both household appliances (e.g., electric kettles) and commercial equipment (e.g., industrial heaters), this switch provides continuous protection in diverse environments. Its compact, interchangeable design simplifies installation in tight spaces compared to bulkier alternatives*.

  • 5. Certification Standards: Safety-Compliant Construction

  • Complies with safety standards like UL/IEC for thermal protectors*, ensuring safe operation and regulatory adherence. The insulated contacts and conductive terminals meet food-grade and eco-friendly material requirements for appliance compatibility.

Product details

KSD306 Manual Reset Temperature Cutoff Switch Thermal Protector Bimetal Thermostat for Electric Water Heater

The KSD306 Manual Reset Temperature Cutoff Switch is a durable bimetal thermostat designed for critical thermal protection in home appliances, water heaters, and commercial equipment. Built with corrosion-resistant materials and a robust mechanical design, it ensures reliable on/off control based on temperature thresholds, safeguarding against overheating in harsh environments.

Technical specifications

FeatureSpecificationBenefit
MaterialBimetal strip with brass/copper contactsPrecision temperature response and durability
Reset TypeManual resetPrevents accidental reactivation in critical scenarios
InsulationCeramic/plastic coatingEliminates electrical shorts and enhances safety
Temperature RangeCustomizable (typically 50°C–250°C)Adaptable to diverse heating applications
Power SourceElectric (operates at 220V–240V)Compatible with standard household/commercial systems

Customization guide

Adjustable temperature thresholds (via bimetal calibration) to meet specific equipment requirements. Interchangeable design allows quick replacement in existing systems.

Get inspired

With the KSD306’s bimetal core, you can ensure precise thermal cutoff in electric water heaters, preventing overheating and extending equipment lifespan. Its manual reset feature adds an extra layer of safety by requiring user intervention after tripping, ideal for high-risk commercial applications.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Temperature Range50°C–150°C50°C–200°C50°C–250°C*
Response Time5 seconds3 seconds (+40%)2 seconds (+60%)*
Durability5,000 cycles10,000 cycles15,000 cycles
Operating Voltage220V–240V220V–240V220V–240V

Supplier's note

  1. Technical Breakthroughs:

    • Bimetal Core Accuracy: The KSD306’s bimetal strip ensures ±3°C precision, outperforming traditional thermostats.
    • Manual Reset Safety: Forces user intervention post-trip, reducing fire risks in commercial settings.
    • Interchangeable Design: 20% faster installation than proprietary switches due to standardized terminals.
  2. Optimal Version Selection:

    • Base Model: Ideal for household appliances (e.g., kettles) where moderate temperature control suffices.
    • Advanced Model: Perfect for outdoor heaters or commercial systems requiring wider temperature ranges (e.g., industrial water boilers).
    • Pro Model: Designed for extreme environments (e.g., high-power industrial heaters) with triple the cycle lifespan of industry benchmarks.

*Pro Model’s 250°C threshold and 60% faster response enable safe operation in furnace systems, while its 15,000-cycle durability minimizes downtime in 24/7 commercial setups.

Frequently asked questions

  • Which thermal protector suits electric water heaters in commercial settings?

  • How do I clean and maintain a manual reset thermostat switch?

  • Bimetal vs Thermistor: Which is better for heater safety?

  • Can I adjust the temperature threshold on the KSD306 switch?

  • Is the KSD306 thermal protector UL/CE certified?

  • Manual reset vs automatic: Which is safer for electric heaters?

  • Can this thermostat be used in both home and outdoor heaters?

  • What makes the KSD306 easy to install in existing systems?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Temperature RangeCommercial water heaters, industrial equipmentIndustry Standard: 70–90°C (common household units)
Our Base: 60–100°C (▲ expands to commercial use)
Our Advanced: 50–120°C (▲▲ handles extreme industrial temps)
Wider range accommodates high-demand systems.
Meets ISO 16892 thermal safety standards.
Industry standard may fail in high-temperature industrial settings.
Reset MechanismHVAC systems needing quick restartsIndustry Standard: Manual reset (requires user action)
Our Base: Manual reset
Our Advanced: Auto-reset (▲ no downtime after tripping)
Auto-reset improves uptime in critical systems.
Complies with IEC 60730 safety protocols.
Manual resets demand human intervention, risking delays.
Response TimeAppliances requiring rapid thermal protectionIndustry Standard: 3–5 seconds (IEC 60730 compliant)
Our Base: 2–4 seconds (▲ faster response)
Our Advanced: 1–3 seconds (▲▲ optimal for safety)
Faster response reduces overheating risks.
Meets UL 1054 performance benchmarks.
Slower response may compromise safety in time-sensitive applications.
Durability (Cycle Life)High-cycle environments (e.g., industrial ovens)Industry Standard: 10k cycles (basic reliability)
Our Base: 15k cycles (▲ longer lifespan)
Our Advanced: 20k cycles (▲▲ minimal replacements)
Higher cycles reduce maintenance costs.
Built with ASTM A240 bimetal for corrosion resistance.
Lower cycles mean frequent replacements in heavy-use scenarios.
Power DependencyCritical systems where power loss is a riskIndustry Standard: Electric-only (dependent on power)
Our Base: Electric-only
Our Advanced: Battery backup (▲ operates during outages)
Battery backup ensures continuous protection during power failures.
Complies with EN 60335 safety standards.
Base version fails in power-out situations.
Application ScopeDiverse settings (residential to industrial)Industry Standard: Household appliances (limited use cases)
Our Base: Household + Commercial (▲ broader adoption)
Our Advanced: Industrial-grade (▲▲ extreme environments)
Versatility across sectors reduces inventory needs.
Meets ASME PTC 19.3 for industrial-grade performance.
Industry standard lacks adaptability for specialized use cases.

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