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Thermal Motor Protector

Home Products Sensors Thermostats Thermal Motor Protector
YS11 was developed to protect people and property from accidents or failures that can occur in motors used in fans and washing machines as well as other appliances. It functions as a self-resetting thermal cut-out (Type 2B), thermal motor protector (Type 3C) and thermal protector for ballasts.
The YS11 can be used for on-winding and outside of resin packed motors by clamping or insertion. Since the YS11 has a plastic case, it does not need to be insulated from metal part of the motor.

Ensuring the safety and longevity of electrical motors and appliances is critical for manufacturers and end-users alike. The YS11 Small Thermal Motor Protector, developed by Sensata Technologies, provides a highly reliable, self-resetting thermal protection solution designed to prevent overheating-related failures in various applications, including fans, washing machines, and industrial motors. This innovative thermal cut-out device safeguards both people and property from electrical hazards, making it an indispensable component in modern motor protection.

Key Features and Functionality

The YS11 series offers versatile thermal protection by functioning as:

  • Self-resetting thermal cut-out (Type 2B) – Automatically restores operation after cooling down.
  • Thermal motor protector (Type 3C) – Designed to protect motors from overheating.
  • Thermal protector for ballasts – Ensures the reliability and durability of electrical ballast components.

The YS11 is uniquely engineered to work both on-winding and outside resin-packed motors via clamping or insertion. Its plastic casing eliminates the need for additional insulation, making integration into various designs seamless and efficient.

Technical Specifications

  • Operating Temperature Range: 45°C to 150°C
  • Tolerance: ±5K
  • Operating Time: Continuous operation
  • Pollution Situation: Dirty
  • Sensing Element Coverage: Whole control
  • Degree of Protection: IP00
  • Electrical Connections: Soldering, Welding
  • Contact Capacity:
    • Thermal Cut-Out (TCO) & Thermal Motor Protector (TMP): 7A/250V AC, 10A/125V AC
    • TCO Only: 6A/24V DC, 15A/18V DC
    • Ballast Protection: 2A/250V AC

Reliable Performance for Diverse Applications

The YS11 Small Thermal Motor Protector is designed with Sensata’s renowned thermostat technology, ensuring high performance and durability. Its robust sealing capability allows it to withstand varnish processes and makes it suitable for integration into motor windings.

Different case configurations cater to diverse applications:

  • R-Type Case: Developed for resin-packed motors, designed to endure high pressures during the molding process (maximum pressure: 7.5 MPa). However, this case is not suitable for varnish processes due to limited sealing capabilities.
  • S-Type Case: Designed for higher ambient temperatures, utilizing PPS housing material (RTI: 240°C) for short-term high-temperature resistance. Like the R-Type, it is not varnish process compatible.
  • Standard Case: Compact and well-sealed, making it the preferred option for standard motor protection needs.

Ordering and Customization Options

Ordering the YS11 is straightforward, with a structured format to ensure the exact specifications for various applications:

YS11-X-YYYT-ZW(ZZZ)-(V)

Breakdown of Model Number:

  1. Device Identification: YS11
  2. Performance Identification:
    • A: BeCu C17530 Arm Material
    • B: BeCu C17510 Arm Material
  3. Open and Close Temperature Code: Refer to Chart A for specific temperatures (YYY = Open Temp. Code, T = Close Temp. Code)
  4. Leads Material & Length (Z & W):
    • Materials: UL-rated and tin-coated options available
    • Length: Standard lengths from 25mm to 70mm
  5. Other Options (V):
    • R: Reinforced Case
    • S: PPS Case
    • T: Groove Contact (for DC applications)
    • U: Groove Contact with CDA C19220 lower terminal (for DC applications)

Industry Certifications & Compliance

The YS11 series meets stringent international safety and quality standards, ensuring its reliability across multiple industries:

  • UL Certification:
    • UL E15962 for Motor Protection
    • UL E34618 for Temperature Indicating & Regulating
  • ENEC Approval: 2014531.17 for thermal cut-out, motor, and ballast protection
  • CQC Certification (China Quality Certification Centre):
    • CQC02002001340 / CQC02002001341

Why Choose the YS11 for Your Application?

  1. Reliable Protection – Prevents overheating and electrical failures, enhancing equipment lifespan.
  2. Versatile Applications – Compatible with fans, washing machines, ballasts, industrial motors, and more.
  3. Compact & Easy Integration – Small form factor with plastic casing eliminates the need for insulation.
  4. Customizable Configurations – Multiple temperature ratings, materials, and lead options for tailored solutions.
  5. Proven Industry Compliance – Certified by UL, ENEC, and CQC, ensuring high safety standards.

Conclusion

The YS11 Small Thermal Motor Protector by Sensata Technologies is a cutting-edge solution for protecting electrical motors and appliances from overheating. Its self-resetting thermal protection, robust design, and wide application range make it an essential choice for manufacturers seeking reliability and compliance with international safety standards.

For more details, technical specifications, or to place an order, contact Amironic (AMIRONIC) today!

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