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                                                                              • • • GE TJK436400WL Molded Case Circuit Breaker

                                                                                    

                                                                                     

                                                                                    1. Product Overview

                                                                                    • Brand: General Electric (GE Industrial Solutions / ABB GE legacy)
                                                                                    • Model: TJK436400WL
                                                                                    • Series: J600 Line Type TJK interchangeable trip molded case circuit breaker (MCCB)
                                                                                    • Frame Class: TJK4 (400A frame size)
                                                                                    • Core Function: Thermal-magnetic overcurrent protection for 3-phase industrial power distribution, offering overload long-time delay and short-circuit instantaneous trip protection

                                                                                    Full Model Code Breakdown

                                                                                     

                                                                                    Code Segment	Definition
                                                                                    TJK	J-frame MCCB, interchangeable trip unit, standard 30kA interrupt capacity @480V
                                                                                    4	Frame rating: 400A maximum frame capacity
                                                                                    3	3-pole (3-phase) configuration
                                                                                    6	Maximum rated voltage: 600VAC
                                                                                    400	Nominal continuous current rating: 400 Ampere
                                                                                    WL	Pre-installed copper/aluminum lugs for both line side and load side cable termination

                                                                                    2. Core Electrical Specifications

                                                                                    Rated Ratings

                                                                                    • Continuous Current: 400A (40°C ambient)
                                                                                    • AC Voltage: 600VAC max, 50/60Hz
                                                                                    • DC Voltage: 500VDC max
                                                                                    • Trip Function: LI (Long-time overload + Instantaneous short-circuit)
                                                                                    • Adjustable Instantaneous Trip Range: 1200–4000A (3×~10× rated current)

                                                                                    Interrupting Capacity (AIC)

                                                                                    • 42kA @ 240VAC
                                                                                    • 30kA @ 480VAC
                                                                                    • 22kA @ 600VAC
                                                                                    • 20kA @ 250/500VDC

                                                                                    Terminal & Wiring

                                                                                    • Terminals: Copper & aluminum compatible line + load lugs (WL suffix standard equipment)
                                                                                    • Wire range: 6 AWG ~ 600 kCMIL copper/aluminum conductors
                                                                                    • Connection style: Feed-thru bolt-on mounting for panelboard/switchgear installation

                                                                                    3. Trip Unit & Configurability

                                                                                    1. Interchangeable thermal-magnetic trip unit (field replaceable without full breaker disassembly)
                                                                                    2. Thermal long-time delay protection for gradual overload damage prevention
                                                                                    3. Adjustable magnetic instantaneous dial for short-circuit fault coordination tuning
                                                                                    4. Field-installable optional accessories: auxiliary alarm switches, shunt trip coils, undervoltage trip modules, mechanical interlocks

                                                                                    4. Mechanical & Environmental Parameters

                                                                                    Dimension & Weight

                                                                                    • Size (H × W × D): 10.13" × 8.25" × 3.81"
                                                                                    • Net weight: ~19.92 lbs (9.04 kg)

                                                                                    Environmental

                                                                                    • Operating ambient temperature: -10°C ~ +40°C
                                                                                    • Storage temperature: -40°C ~ +85°C
                                                                                    • Humidity: 5%–95% RH non-condensing
                                                                                    • Certifications: UL Listed, CSA Certified, compliant with NEMA industrial standards

                                                                                    5. Key Advantages

                                                                                    1. Interchangeable trip unit design simplifies on-site current rating adjustment without breaker replacement
                                                                                    2. Standard dual line/load lugs eliminate extra terminal accessory purchasing
                                                                                    3. High short-circuit interrupt rating suits heavy industrial high-fault power systems
                                                                                    4. Separable thermal and magnetic trip curves enable selective coordination with upstream/downstream protective devices
                                                                                    5. Wide voltage compatibility covers commercial, industrial AC and DC distribution loads
                                                                                    6. Expandable accessory options for remote electrical tripping and fault signal feedback to PLC/SCADA

                                                                                    6. Typical Application Scenarios

                                                                                    • 3-phase main feeder and branch circuit protection in industrial control panels
                                                                                    • Power distribution for large motors, compressors, pumps and generator auxiliary loads
                                                                                    • Commercial building main switchgear, factory production line power cabinets
                                                                                    • Oil & gas, chemical plant medium-current power distribution systems
                                                                                    • Thermal power plant auxiliary equipment low-voltage distribution protection
                                                                                    • Renewable energy inverter and battery cabinet overcurrent protection

                                                                                     
                                                                                     

The structure and details of the product：