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  • Motor Transformer Ballast Electric Resettable Automatic Temperature Cutoff Bimetal Switch Thermal Protector
  • Motor Transformer Ballast Electric Resettable Automatic Temperature Cutoff Bimetal Switch Thermal Protector
  • Motor Transformer Ballast Electric Resettable Automatic Temperature Cutoff Bimetal Switch Thermal Protector
  • Motor Transformer Ballast Electric Resettable Automatic Temperature Cutoff Bimetal Switch Thermal Protector
  • Motor Transformer Ballast Electric Resettable Automatic Temperature Cutoff Bimetal Switch Thermal Protector
  • Motor Transformer Ballast Electric Resettable Automatic Temperature Cutoff Bimetal Switch Thermal Protector
Motor Transformer Ballast Electric Resettable Automatic Temperature Cutoff Bimetal Switch Thermal Protector

Motor Transformer Ballast Electric Resettable Automatic Temperature Cutoff Bimetal Switch Thermal Protector

  • >= 1000 Pieces
    $0.20

Customization:

Customized packaging（Min.Order: 100000 pieces）
View product details

Motor Transformer Ballast Electric Resettable Automatic Temperature Cutoff Bimetal Switch Thermal Protector

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Temperature Control & Safety Protection: Equipped with resettable bimetal switches and thermistors (operating at 95°C to 120°C), the product automatically cuts off circuits to prevent overheating in motors, transformers, or ballast systems.
  • Circuit Protection: Features fuses and relays (12V DC/16A) to safeguard against overcurrent and high-voltage surges (up to 250V), ensuring reliable operation in demanding environments.

Key features

  • 1. Material Technology

    • With copper core construction, ensure efficient heat dissipation and durability under high-load conditions. Outperforming aluminum-based alternatives*, this design maintains structural integrity even in prolonged operation.

  • 2. Interactive Design

    • With automatic thermal reset functionality, eliminate the need for manual replacement after overheating incidents. Unlike traditional fuses requiring physical replacement, this switch resets automatically once temperatures normalize.

  • 3. Performance Parameters

    • Rated at 240V, ensure compatibility with standard electrical systems while maintaining safety margins. The bimetal switch’s precise 120°C cutoff threshold* safeguards against thermal damage in high-current applications.

  • 4. Scenario Solutions

    • Ideal for motor and ballast applications, provide reliable thermal protection in industrial and commercial settings. The resettable feature ensures minimal downtime in continuous operation scenarios like HVAC systems or lighting ballasts.

  • 5. Certification Standards

    • Complies with international safety standards for electrical components, ensuring compliance with regulations for low-voltage systems. This guarantees safe integration into a wide range of industrial and domestic equipment.

Product details

Motor Transformer Ballast Electric Resettable Automatic Temperature Cutoff Bimetal Switch Thermal Protector

The Motor Transformer Ballast Electric Resettable Automatic Temperature Cutoff Bimetal Switch Thermal Protector is a safety-critical component designed to safeguard electrical systems from overheating. Crafted from high-quality copper for superior conductivity and durability, it operates at a nominal voltage of 240V and features a resettable bimetal mechanism for reliable thermal protection.

Technical specifications

FeatureSpecificationBenefit
MaterialCopperEnsures efficient heat dissipation and longevity
Nominal Voltage240VCompatible with standard industrial and residential systems
Temperature Cutoff120°C (default)Prevents thermal damage in high-load scenarios
Current Rating16ASafely handles moderate to heavy-duty applications
Reset MechanismBimetal switch (auto-reset)Reduces downtime by automatically restoring operation after cooling
CertificationIEC 60947-5-1Meets global safety and performance standards

Customization guide

Adjustable temperature cutoff thresholds (95°C to 150°C) and current ratings (up to 24A) to meet specific thermal management needs. Customize fuse ratings or relay configurations for tailored overcurrent protection.

Get inspired

With this thermal protector, you can ensure uninterrupted operation of motors, transformers, and ballasts while minimizing fire risks. Its resettable design eliminates the need for manual replacement, making it ideal for 24/7 industrial and commercial applications.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Voltage Rating240V277V (+15%)480V (+100%)*
Max Current16A20A (+25%)24A (+50%)
Temperature Range50°C to 120°C50°C to 150°C50°C to 200°C
Fuse TypeFixedAdjustableCustomizable

Supplier's note

  1. Three Breakthroughs:

    • Copper Construction: With copper, you can achieve 30% better heat dissipation than aluminum-based alternatives, extending component lifespan.
    • Precision Thermistors: The integrated 120°C thermistor ensures ±2°C accuracy, enabling safer temperature thresholds compared to traditional bimetal strips.
    • Auto-Reset Bimetal Switch: This eliminates downtime caused by manual replacement, a key advantage over non-resettable fuses.

  2. Optimal Version Selection:

    • Base Model: Ideal for standard residential HVAC systems or appliances operating below 16A.
    • Advanced Model: Suitable for commercial equipment (e.g., industrial fans) requiring higher current handling and extended temperature tolerance.
    • Pro Model: Designed for heavy-duty industrial motors or high-voltage applications (e.g., mining equipment) where 24A and 200°C resistance are critical.

The Pro version’s 200°C rating exceeds industry benchmarks by 67%, enabling safe use in extreme environments. Pair it with its copper core to ensure zero thermal drift over time, safeguarding both equipment and personnel.

*Note: Comparative values are based on standard industry benchmarks (e.g., IEC 60947-5-1).

Frequently asked questions

  • Which model of the Motor Transformer Ballast is best for high-temperature industrial applications?

  • How do I clean and maintain the bimetal switch to prevent overheating?

  • Why is copper used in the Thermal Protector instead of aluminum?

  • Is the 240V rated voltage compliant with international safety standards?

  • Does the Electric Resettable Switch support 240V systems in commercial settings?

  • How often should I inspect the fuses in the Thermal Protector?

  • At what temperature does the Automatic Temperature Cutoff activate?

  • How does the Bimetal Switch differ from conventional thermal protectors?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Thermal Cut-off SwitchesMotor and appliance thermal protectionIndustry: Steel contacts (220V) ▲ Our Base: Copper (240V) ▲ Advanced: Copper + auto-reset (240V) (IEC 60381)▲ Auto-reset reduces downtime, high voltage rating for robustness.Higher cost than standard; requires calibration for precision.
Resettable FusesElectronics overcurrent protectionIndustry: Polymer (250V) ▲ Base: 240V polymer ▲ Advanced: 250V + faster response (IEC 60127)Self-resetting eliminates replacement needs; compact design.Base model has slower response; may degrade after repeated use.
Bimetal ThermostatsHVAC and industrial temperature controlIndustry: 120°C (steel) ▲ Base: 120°C (copper) ▲ Advanced: 150°C (copper) (IEC 60669)▲ Copper improves conductivity; higher temp tolerance for harsh environments.Bulky compared to thermistors; manual adjustment required for precision.
ThermistorsPrecision temperature monitoringIndustry: NTC 95°C ▲ Base: 100°C ▲ Advanced: 120°C (ASTM E1154)Ultra-precise readings (±0.1°C); compact and lightweight.Fragile; requires protective casing; non-resettable in base models.
Relay-based Overcurrent ProtectorsHigh-current industrial systemsIndustry: 16A (12V DC) ▲ Base: 20A ▲ Advanced: 24A (IEC 60947)Handles high current loads (e.g., motors); mechanical durability.Mechanical wear over time; slower response than solid-state alternatives.
Overvoltage ProtectorsSurge protection in electrical gridsIndustry: 240V 20kA ▲ Base: 240V 30kA ▲ Advanced: 250V 50kA (IEC 61643)▲ Protects against 50kA surges (e.g., lightning); compatible with 250V grids.Bulky installation; higher cost for advanced models; may require grounding.

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The comparison data is based on manufacturer information and industry standards. Actual results may vary depending on individual use cases. It is advisable to verify details with the supplier for the most accurate information.