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Miniature Circuit Breakers
  • ST-1 Circuit Breaker Thermal Cut Out /Thermal Cutout Switch 15A 250V
  • ST-1 Circuit Breaker Thermal Cut Out /Thermal Cutout Switch 15A 250V
  • ST-1 Circuit Breaker Thermal Cut Out /Thermal Cutout Switch 15A 250V
  • ST-1 Circuit Breaker Thermal Cut Out /Thermal Cutout Switch 15A 250V
  • ST-1 Circuit Breaker Thermal Cut Out /Thermal Cutout Switch 15A 250V
  • ST-1 Circuit Breaker Thermal Cut Out /Thermal Cutout Switch 15A 250V
ST-1 Circuit Breaker Thermal Cut Out /Thermal Cutout Switch 15A 250V

ST-1 Circuit Breaker Thermal Cut Out /Thermal Cutout Switch 15A 250V

$0.13-$0.20/ Piece|1000 Piece/Pieces(Min. Order)
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ST-1 Circuit Breaker Thermal Cut Out /Thermal Cutout Switch 15A 250V

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Overcurrent/Thermal Protection: Designed to automatically interrupt electrical circuits in case of overcurrent or overheating, safeguarding connected devices and systems.
  • Manual Reset Capability: Features a resettable push-button mechanism, enabling quick restoration of power after tripping without requiring external intervention.

Key features

  • 1. Corrosion-Resistant Material Technology

    • With corrosion-resistant metal contacts and a durable plastic/metal housing, you can ensure reliable performance in harsh industrial or outdoor environments. The robust construction withstands mechanical stress and environmental exposure better than switches with purely plastic components*.

  • 2. User-Friendly Interactive Design

    • With a prominent red button and compact, ergonomic design, you can achieve quick and intuitive operation in industrial or automotive settings. The high-visibility button reduces operational errors in complex machinery setups.

  • 3. High-Capacity Performance Parameters

    • With a 15A/20A rating and 250V compatibility, you can handle heavy-duty electrical loads more effectively than standard 10A switches. This makes it ideal for applications like motor controls or lighting systems requiring higher power throughput*.

  • 4. Overload Protection & Resettable Functionality

    • With built-in overload protection and a resettable design, you can safeguard connected equipment from damage during overcurrent events and restore power manually without external intervention. This ensures uninterrupted operation in commercial or industrial scenarios.

  • 5. Global Compliance Certifications

    • With CE, RoHS, and CQC certifications, you can meet stringent international safety and environmental standards. This ensures compatibility with global markets and adherence to regulations like EU safety norms and RoHS restrictions on hazardous materials.

Product details

ST-1 Circuit Breaker Thermal Cut Out /Thermal Cutout Switch 15A 250V

The ST-1 Circuit Breaker Thermal Cut Out is a robust, compact switch designed for industrial and automotive applications. With certifications like CE, RoHS, and CQC, it ensures compliance with global safety standards. Rated for 15A/20A and 250V, it provides reliable overload protection and durability for demanding environments.

Technical specifications

FeatureSpecificationApplication Scenario
CertificationsCE, RoHS, CQCCompliance with European and global safety regulations
Rated Current15A / 20AResidential lighting, small motor controls
Rated Voltage250V ACStandard AC systems (e.g., industrial machinery)
Pole Configuration1 PoleSingle-phase circuits for simple control
Material ConstructionRed Plastic Button, Durable HousingHigh-visibility operation in industrial settings
Overload ProtectionThermal CutoutSafeguarding equipment from overcurrent damage

Customization guide

Adjustable rated current (15A/20A) to meet specific load requirements. Housing materials can be customized for corrosion resistance or flame retardancy in extreme environments.

Get inspired

The ST-1’s compact design and overload protection make it ideal for applications like HVAC systems, automotive electronics, and industrial control panels. Its certifications ensure seamless integration into global supply chains.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Rated Current15A20A20A (with surge tolerance)
CertificationsCECE + RoHSCE + RoHS + CQC
Operating Temperature Range-25°C to 70°C-30°C to 80°C-40°C to 90°C
Overload Response Time5 seconds3 seconds1 second*

Supplier's note

  1. Technical Breakthroughs:

    • Enhanced Overload Protection: The Pro Model’s 1-second response time reduces equipment damage by 90% compared to traditional switches.
    • Global Compliance: Triple certifications (CE, RoHS, CQC) eliminate regional regulatory barriers.
    • Extreme Temperature Tolerance: The Pro Model operates in -40°C to 90°C, outperforming industry benchmarks by 20%.

  2. Version Selection Guide:

    • Base Model: Ideal for residential or low-stress applications (e.g., home lighting).
    • Advanced Model: Suited for industrial machinery with moderate current demands and RoHS compliance needs.
    • Pro Model: Best for extreme environments (e.g., automotive, heavy machinery) requiring rapid response and wide temperature adaptability.

With the Pro Model’s surge-tolerant design, you can ensure uninterrupted operation in high-demand scenarios. The Advanced Model’s RoHS certification simplifies EU market entry, while the Base Model offers cost-effective solutions for basic applications.

Frequently asked questions

  • Which ST-1 model is best for automotive systems requiring 15A protection?

  • How does the ST-1 thermal cutout provide overload protection?

  • Is the ST-1 15A switch compatible with 220V AC systems?

  • What certifications ensure the ST-1 meets safety standards?

  • Can the ST-1 be reset after tripping due to overcurrent?

  • What’s the difference between the 15A and 20A ST-1 models?

  • Is the ST-1 suitable for industrial machinery with 50/60Hz power?

  • What materials are used in the ST-1’s construction for durability?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Certification ComplianceGlobal industrial/commercial installationsIndustry Standard: CE (EN 60947-2)
Our Base: CE + RoHS (2011/65/EU)
Our Advanced: CE + RoHS + CQC (China National Standards)		Ensures regulatory compliance across markets (e.g., EU, China).
▲ Base → Advanced: Adds CQC certification for Chinese markets.		Higher costs for advanced certifications.
Rated CurrentResidential/commercial electrical systemsIndustry Standard: 10A
Our Base: 15A
Our Advanced: 20A (IEC 60947-2)		Handles moderate to heavy loads (e.g., lighting, small motors).
▲ Base → Advanced: 33% higher current capacity.		Advanced models may require larger wiring or installation space.
Voltage RatingSingle-phase power systemsIndustry Standard: 250VAC
Our Base/Advanced: 250VAC (IEC 60947-2)		Matches standard household/commercial voltage requirements.No differentiation between tiers.
Pole ConfigurationSingle-phase circuitsIndustry Standard: 1-pole
Our Base/Advanced: 1-pole (ISO 9478)		Simplifies wiring for single-phase applications.Limited to single-phase use; multi-pole systems require additional breakers.
Protection TypeOverload/short-circuit protectionIndustry Standard: Thermal-only
Our Base/Advanced: Thermal-magnetic (IEC 60947-2)		Faster response to short circuits compared to thermal-only designs.
▲ Base = Advanced: Same protection type.		Slightly higher cost than basic thermal-only breakers.
Reset MechanismIndustrial machinery controlIndustry Standard: Non-resettable (must replace)
Our Base/Advanced: Manual resettable (IEC 60947-2)		Reduces downtime by allowing quick reactivation after tripping.Requires user intervention post-trip.

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