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GENERAL ELECTRIC Circuit Breaker Trip Unit: TJK Series

General Electric TJK Series circuit breaker trip units provide protection against overcurrent and short-circuit conditions in electrical systems.

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GENERAL ELECTRIC TJK436T125A
GENERAL ELECTRIC TJK636T300B
Frame Type: TJK-Trip Unit , Number of Poles: 3 , Voltage: 600V
StyleModelAmpsPrice
A
TJK436T125		125A-
RFQ
A
TJK436T150		150A-
RFQ
A
TJK436T175		175A£861.86
RFQ
A
TJK436T200		200A£861.86
RFQ
A
TJK436T225		225A£861.86
RFQ
A
TJK436T250		250A£861.86
RFQ
A
TJK636T250		250A£977.00
RFQ
A
TJK436T300		300A£861.86
RFQ
B
TJK636T300		300A£977.00
RFQ
A
TJK636T350		350A£977.00
RFQ
A
TJK436T350		350A£861.86
RFQ
A
TJK436T400		400A£861.86
RFQ
A
TJK636T400		400A£977.00
RFQ
A
TJK636T450		450A£977.00
RFQ
A
TJK636T500		500A£977.00
RFQ
A
TJK636T600		600A£977.00
RFQ

Working Mechanism

  • A circuit breaker trip unit is part of a circuit breaker that detects when the electricity flowing through the circuit is too high or abnormal. It signals the circuit breaker to stop the electricity from flowing, which helps to protect the electrical equipment and prevent damage or hazards.

Features

  • General Electric TJK Series circuit breaker trip units feature interchangeable magnetic / thermal-magnetic trip for long & instantaneous short circuit protection.
  • They have 3-pole configuration for balanced current distribution in the circuit breaker.
  • These TJK Series trip units can be operated at voltages up to 600V and have current ratings ranging from 125 to 600A.

Frequently Asked Questions

How to install these General Electric TJK Series trip units?

  • Ensure that the power supply to the MCCB is disconnected and that the breaker is in the off position.
  • Remove the cover of the MCCB to access the trip unit.
  • Carefully remove the old trip unit by disconnecting the wires and loosening any retaining screws or clips.
  • Install the new trip unit by aligning it with the mounting brackets and securing it in place with retaining screws or clips.
  • Connect the trip unit to the appropriate terminals of the MCCB, following the manufacturer's instructions and using the appropriate tools.
  • Verify that the trip unit is securely & correctly installed by conducting a visual inspection of the connections and wires.
  • Replace the cover of the MCCB and secure it in place.
  • Restore the power supply to the MCCB and test the trip unit to ensure that it is functioning properly.
  • Finally, keep a record of the installation and any adjustments made to the trip unit for future reference.

What is the difference between thermal-magnetic and electronic trip units?

  • Thermal-magnetic trip units use two different techniques to detect and handle high current loads. Electronic trip units, on the other hand, employ computer chips and electronic sensors to recognize and react to overcurrent situations.
  • Electronic trip units offer more accurate and customised protection compared to thermal-magnetic trip units.

How to maintain these GE TJK Series circuit breaker trip units?

  • Examine the trip units for indications of harm, corrosion, or wear and tear, and verify that all connections are firmly and securely attached.
  • Clean the trip unit using a soft, dry cloth or brush to remove any dirt, dust, or debris that may have accumulated over time.
  • Test the trip unit regularly to ensure that it is functioning correctly and can trip the circuit breaker as intended.

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