Description
GE TB43225AF14 Technical Specifications:
- Poles: 3-Pole.
- Frame Size: 225 A Frame.
- Continuous Current Rating: 225 A.
- Voltage Rating: 600 VAC Max.
- Interrupting Rating: Standard industrial interrupting capacity (e.g., 25kA or 35kA at 480V, verify specific datasheet).
Functional Features:
- Thermal-Magnetic Protection: Integrated trip unit providing both overload (thermal) and short-circuit (magnetic) protection.
- Compact Design: Space-saving profile for high-density panelboards.
- Interchangeable Accessories: Compatible with shunt trips, auxiliary switches, and motor operators.
- Visible Trip Indicator: Clear visual indication of breaker status.
Application Scenarios:
- Main or branch circuit protection in commercial panelboards.
- Feeder protection in industrial motor control centers (MCCs).
- Protection for transformers, capacitors, and large motors.
Performance Parameters:
- Trip Curve: Standard inverse-time thermal and instantaneous magnetic trip characteristics.
- Mechanical Life: High-cycle rated mechanism for frequent switching applications.
- Dielectric Strength: Withstands standard power frequency and impulse voltage tests.
Material Composition & Structural Characteristics:
- Housing: High-strength, flame-retardant thermoplastic enclosure.
- Contacts: Silver-alloy contacts for low resistance and high wear resistance.
- Arc Chute: Advanced arc extinction chamber for rapid fault clearing.
- Terminals: Line and load terminals designed for copper or aluminum conductors.
Working Principle: Under normal conditions, the breaker contacts remain closed, allowing current flow. During an overload, a bimetallic strip heats and bends to trip the mechanism. During a short circuit, an electromagnetic coil generates sufficient force to instantly unlatch the mechanism. The contacts open, and the arc chute safely extinguishes the resulting electrical arc.
Installation Requirements:
- Torque: Tighten all line and load terminal connections to the manufacturer’s specified torque value.
- Clearance: Maintain adequate phase-to-phase and phase-to-ground clearance.
- Mounting: Securely mount on a flat, rigid surface or standard panelboard bracket.
Usage Precautions:
- Sizing: Ensure the breaker rating matches the conductor ampacity and load requirements.
- Maintenance: Periodically exercise the breaker and perform contact resistance testing.
- Replacement: Replace the entire breaker if internal damage or excessive contact wear is suspected.
