GE TPSS6620
1. Overview
GE TPSS6620 is a high-capacity low-voltage thermal-magnetic circuit breaker, specifically designed for industrial power distribution systems. It features manual operation and is mainly used for circuit protection of large current and high voltage. It can quickly cut off the circuit in case of overload or short circuit to prevent electrical accidents.
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2. Specifications
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Specifications
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Values
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Model
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TPSS6620
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Pole Number
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3 Pole
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Rated Current
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2000 Amperes (A)
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Rated Voltage
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600 Volts (V)
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Breaking Capacity
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Up to 2000A (depending on installation method)
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Main Functions
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Manual Operation, Thermal-Magnetic Protection
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3. Product Features
- High Breaking Capacity: Suitable for large-current power distribution systems up to 2000A.
- Reliable Thermal-Magnetic Protection: Combines thermal trip and magnetic trip mechanisms to provide fast and reliable protection against overload and short-circuit faults.
- Manual Operation: Supports manual closing and opening, facilitating on-site maintenance and control.
- Modular Design: Compatible with other GE low-voltage products, enabling standardized installation.
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4. Structure and Composition
- Main Contact Assembly: Responsible for current conduction and breaking.
- Thermal Trip: Trips according to the thermal effect of overload current.
- Magnetic Trip: Generates a strong magnetic field to trip in case of instantaneous short circuit.
- Operating Mechanism: Manual knob or lever for closing and opening.
- Housing and Terminal Blocks: Used for installation and connection to external circuits.
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5. Application Fields
- Large-Scale Factory Power Distribution: Such as main distribution cabinets in manufacturing and heavy industry.
- Power Facilities: Such as low-voltage side distribution of substations and auxiliary systems of power plants.
- Building Power Supply: Main distribution boxes of large commercial buildings and data centers.
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6. Installation and Maintenance
Installation
- The circuit breaker is usually installed in a standard low-voltage distribution cabinet, and reliable grounding must be ensured.
- Wiring must be carried out in accordance with local electrical codes and GE’s installation manual to ensure correct polarity.
Maintenance
- Regularly check the flexibility of the mechanical operating mechanism.
- Clean the housing to prevent dust and corrosives from entering the interior.
- When the circuit breaker is not closed for a long time, a closing test should be performed to ensure the trip mechanism is flexible and effective.

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