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GE THED134125W
Product Name: GE E150 Line Molded Case Circuit Breaker
Product Introduction: The THED134125W (catalog reference TED134125WL) is a 125 A, 3-pole, 480 VAC molded case circuit breaker from GE’s E150 Line. It provides thermal-magnetic protection with long-time and instantaneous trip functions, equipped with copper/aluminum line and load side lugs.
Detailed content
Technical Specifications:
- Manufacturer: General Electric
- Family: E150 Line
- Type: TED
- Poles: 3 (3-phase)
- Current Rating: 125 A
- Voltage Rating: 480 VAC
- Frequency: 50/60 Hz
- Interrupting Capacity (AIC): 18 kA @ 480 V
- Trip Type: LI — Long-Time and Instantaneous, thermal-magnetic, non-interchangeable trip
- Connection: Feed-thru with line & load side lug terminals (Cu/Al)
- Wire Size: 1 to 2/0 AWG
- Actuator: Pivot / toggle handle
- Mounting: Bolted-on
- Temperature Rating: 10 to 50 °C
- Dimensions: 6.31″ H × 4.13″ W × 4.09″ D
- Weight: 25.61 lb
- Material: Plastic housing
Functional Features:
- Thermal-magnetic trip delivers both long-time overload and instantaneous short-circuit protection
- Feed-thru lug design accommodates both copper and aluminum conductors
- Bolted-on mounting ensures secure connection in panelboards
Application Scenarios: Commercial and industrial panelboards or switchboards for branch circuit protection of 480 VAC three-phase loads.
Installation Requirements:
- Mount as a bolted-on device in a compatible GE E150 panelboard
- Terminate conductors (1 to 2/0 AWG) in the line and load side lugs with proper torque
- Verify ambient temperature stays within the 10–50 °C rating
Usage Precautions:
- Confirm the 18 kA AIC rating is sufficient for the available fault current at the installation point
- Coordinate with upstream protection devices to ensure selective tripping
- Inspect and re-torque terminals periodically to prevent loosening due to thermal cycling
