Motors with Thermal Protection (Klixon) Manufacturers

Motors with Thermal Protection (Klixon)

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Introduction

**Motors with Forced Cooling (IC416)** are a necessity when the motor must operate reliably at low speeds or over a wide speed range using a Variable Frequency Drive (VFD). Standard TEFC (IC411) motors rely on a shaft-mounted fan, which loses effectiveness below $50\%$ speed. IC416 cooling uses a smaller, independent motor and fan to provide constant airflow over the motor fins, guaranteeing thermal management even at continuous zero or very low speeds. This is crucial for VFD motors and any Ex motor to maintain the required T-Class temperature limits during all operating conditions.

Why choose us?

Application Industries

  • **VFD-Driven Pumps and Fans:** Essential for low-speed operation where high torque or continuous power is needed.

  • **Extruders and Mixers:** Requiring high torque at very low speeds for processing thick materials.

  • **Test Benches/Dynamometers:** Requiring operation over the full speed range, including continuous low speed.

  • **Explosion-proof VFD Systems:** Mandatory safety feature to ensure the T-Class is not breached at low running speeds.

Popular Industries And Applications

Key Specifications

ParameterDetail
**Cooling Designation**IC416 (Totally Enclosed, Forced Cooled)
**Fan Power**Separate, independently wired power supply for the cooling fan
**Operating Speed**Safe for continuous operation down to $0 \text{ RPM}$ (with VFD)
**Explosion Compliance**Both the main motor and the forced cooling fan must be Ex-certified
**Mounting**External fan usually mounted on the non-drive end (NDE) of the motor

Hardcore Parameters

Key Advantages

  • **Full Speed Range Safety:** Guarantees sufficient cooling for continuous operation across the entire VFD speed range.

  • **High Power Density:** Allows the motor to deliver rated torque even at low speeds without overheating.

  • **Thermal Stability:** Maintains a stable operating temperature regardless of motor speed, maximizing winding life.

  • **Ex T-Class Guarantee:** Critical for hazardous areas, ensuring the surface temperature limit is never exceeded at any operating point.

1-Minute Selection Guide

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About

Who we are

Shanghai Pinxing Explosion-proof Motor Co., Ltd. is a high-tech enterprise specializing in the design, research and development, manufacturing, and service of motors and motor control products.

Shanghai Pinxing is a AAA manufacturer of electrical equipment in China, specializing in the production of more than 1000 varieties of large and medium-sized high- voltage flameproof and increased safety explosion-proof motors, large and medium-sized high-voltage AC motors (including asynchronous, synchronous, frequency conversion and wound rotor motors), various types of small& medium-sized low-voltage explosion-proof motors, AC motors and so on. As a China Motors with Thermal Protection (Klixon) Suppliers and Custom Motors with Thermal Protection (Klixon) Company, Our products are exported to more than 40 countries and regions at home and abroad which are widely used in the fields of coal mining, metallurgy, cement, paper making, environmental protection, petroleum, chemical, textile, road traffic , water conservancy, power, shipbuilding and other factories and enterprises. We are moving towards energy conservation, efficiency, environmental protection, integrated automation and internationalization. Shanghai Pinxing Explosion-proof Motor Co., Ltd aims to provide good motor products and motor technology solutions for global industrial enterprises and various fields, and make "Pinxing"motor become the motor technology solution provider and motor manufacturer in the global motor industry.

Pinxing.

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