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GE TED124125
Product Name: GE TED Series Molded Case Circuit Breaker (125A, 4-Pole)
Product Introduction: The TED124125 is a 125-ampere, 4-pole thermal-magnetic molded case circuit breaker from GE’s TED frame series, designed for low-voltage power distribution system main and branch circuit protection.
Technical Specifications:
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Frame Size: 150A / TED
Detailed content
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Poles: 4-pole (4P)
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Rated Current (In): 125A
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Rated Insulation Voltage (Ui): 690V AC
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Rated Operating Voltage (Ue): 690V AC
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Rated Short-Circuit Breaking Capacity (Icu): 50 kA at 690V
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Rated Service Short-Circuit Breaking Capacity (Ics): 35 kA at 690V
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Trip Unit: Thermal-magnetic (TM-D)
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Mechanical Life: 10,000 operations
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Electrical Life: 8,000 operations
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Operating Temperature: -5°C to 40°C
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Protection Rating: IP40 (front panel)
Functional Features:
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Thermal-magnetic trip unit provides protection without requiring external power
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Three-stage protection (L/S/I) independently adjustable
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Long-delay (L): 0.7-1.0 In adjustable
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Short-delay (S): 1.5-10 In adjustable, 0.1-0.4s delay
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Instantaneous (I): 8-15 In adjustable, action time ≤20ms
Material Composition:
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Arc chute: Steel arc-splitting grid with ceramic arc shield
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Contacts: Silver alloy (AgSnO₂)
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Housing: Flame-retardant thermoplastic (UL94 V-0)
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Operating mechanism: Zinc alloy die-casting with stainless steel spring
Structural Features: Available in fixed or drawout mounting. Front panel includes rotary operating handle (ON/OFF/TRIP), trip indicator, and reset button. Top/bottom terminals accommodate copper busbar and cable connections.
Application Scenarios: Commercial building distribution, industrial plant main distribution, data centers, hospitals, schools.
Installation Requirements: Mount vertically. Upper terminals connect to power supply incoming lines, lower terminals to load outgoing lines. Tightening torque must comply with IEC 60947-2. For drawout type, ensure the rail locking mechanism is fully engaged.
Usage Precautions: Perform periodic manual trip testing to ensure reliable protection operation. When contact wear reaches end-of-life, replace the entire circuit breaker.
