Description
GE 948D872G3
Technical Specifications:
- Brand: General Electric (GE)
- Model: 948D872G3
- Product Type: Control Relay / Contactor Assembly
Functional Features:
- High-Current Switching: Capable of making and breaking significant electrical loads reliably.
- Mechanical Durability: Engineered for millions of operations with consistent contact pressure and arc suppression.
- Positive Indication: Mechanical flag or auxiliary contacts to visually and electrically confirm relay state.
Application Scenarios:
Motor control centers, turbine auxiliary system switching, emergency trip circuits, and power distribution panels.
Performance Parameters:
High dielectric strength, low contact resistance, and fast mechanical response times for protective relay applications.
Material Composition:
Silver-alloy contacts, high-strength magnetic core, and a durable thermoset plastic housing with arc chutes.
Structural Characteristics:
Plug-in or bolt-down configuration with clearly labeled coil and contact terminals. Features a manual override button for testing.
Working Principle:
When the control coil is energized, it generates a magnetic field that pulls the armature, mechanically closing or opening the power contacts to control the external load circuit.
Installation Requirements:
Mount in the designated socket or panel cutout. Ensure all power connections are torqued to specification to prevent hot spots.
Precautions for Use:
Verify coil voltage matches the control circuit voltage. Regularly inspect contacts for pitting or carbon buildup. Never bypass the arc chute or safety interlocks during maintenance.
