Description
GE TFK236225WL
Technical Specifications
- Manufacturer: General Electric (GE)
- Part Number: TFK236225WL
- Poles: 3-Pole
- Rated Current: 225 Amperes
- Voltage Rating: Suitable for standard low-voltage AC industrial distribution
Functional Features
- Overcurrent Protection: Automatically interrupts the circuit during overload or short-circuit conditions to protect downstream equipment.
- Manual Disconnect: Serves as a reliable manual switch for safe maintenance and isolation of electrical circuits.
- Thermal-Magnetic Tripping: Combines thermal protection for sustained overloads and magnetic protection for instantaneous short circuits.
Application Scenarios
Widely deployed in industrial motor control centers (MCCs), main power distribution panels, commercial building infrastructure, and heavy machinery power feeds.
Performance Parameters
- Interrupting Capacity: High interrupting rating designed to safely clear severe fault currents.
- Mechanical Life: Engineered for tens of thousands of open/close operations without degradation.
Material Composition
Housed in a high-strength, flame-retardant thermoset plastic enclosure with silver-alloy main contacts and precision bimetallic thermal elements.
Structural Characteristics
Features a robust bolt-on or plug-in mounting configuration with clearly marked line and load terminals, and a prominent manual operating handle.
Working Principle
Under normal conditions, current flows through the closed contacts. During an overload, a bimetallic strip heats and bends to mechanically trip the latch. During a short circuit, an electromagnetic coil generates sufficient force to instantly unlatch and open the contacts.
Installation Requirements
Must be installed in a compatible GE panelboard or enclosure by a qualified electrician. Line and load terminals must be torqued to the manufacturer’s exact specifications to prevent hot spots.
Usage Precautions
Never exceed the 225-ampere continuous current rating. Always de-energize the panel and follow Lockout/Tagout (LOTO) procedures before installation or maintenance. Perform periodic primary injection testing to verify trip functionality.
