ABB / General Electric TJJ426350WL Molded Case Circuit Breaker
- 350A
- 2 Pole
- Unit Mount
Quantity
ABB / General Electric TJJ426350WL - 350A 2 Pole Molded Case Circuit Breaker
New
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Description
Engineered for heavy-duty applications, the GE TJJ426350WL provides robust overcurrent protection. This 2-pole, 350A MCCB features a thermal-magnetic trip unit with fixed long-time and adjustable instantaneous functions. It installs into GE A-Series panelboards, Spectra switchboards, and motor control centers. This legacy unit is replaced by the Tmax XT5 series via retrofit kit. Rated for 42kAIC at 240V, it includes line and load lugs for immediate unit-mount installation.Specifications
| Brand | ABB / General Electric |
|---|---|
| Series | TJJ |
| Amperage | 350A |
| Poles | 2 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 42kA @ 240VAC, 30kA @ 480VAC, 22kA @ 600VAC, 20kA @ 250VDC |
| Frame Type | TJJ |
|---|---|
| Terminal Type | Lugs |
| For Use With | GE A-Series Panelboards, GE Spectra Series Switchboards, GE J-Frame Enclosures, GE Motor Control Centers |
| Wire Gauge | (1) 6 AWG-600 kcmil (Cu/Al) or (2) 2/0 AWG-250 kcmil (Cu/Al) |
| Max Wire | 600 kcmil |
| Min Wire | 6 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Line and Load Lugs Included |
| Standards | UL 489, NEMA AB-1 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Non-Interchangeable Trip, Quick-Make/Quick-Break, Trip-Free Mechanism, Common Trip |
Product FAQs
5 answersWhat does the WL suffix in the TJJ426350WL catalog number indicate?
The WL suffix indicates that the breaker is supplied with factory-installed line and load lugs. The included lugs accept either a single 6 AWG to 600 kcmil conductor or dual 2/0 AWG to 250 kcmil conductors, and are rated for both copper and aluminum wire.
Which panelboards and enclosures are compatible with the TJJ426350WL?
This unit-mount J-Frame breaker is compatible with GE A-Series panelboards, Spectra Series switchboards, GE motor control centers, and dedicated GE J-Frame enclosures.
How does the adjustable magnetic trip function on this breaker?
This breaker features a fixed thermal element for 350A overload protection and an adjustable magnetic element. The adjustable magnetic dial allows you to change the instantaneous short-circuit trip point, which is critical for proper selective coordination with downstream devices.
Can the TJJ426350WL be used in DC applications?
Yes, this breaker is rated for up to 250VDC with a 20kA interrupting capacity. This makes it suitable for specific industrial DC control circuits, battery systems, or transit applications requiring a 350A disconnect.
Why is this breaker listed under both ABB and General Electric?
ABB acquired GE Industrial Solutions in 2018. Legacy GE molded case circuit breakers, including the TJJ series, are now manufactured by ABB. Depending on the production date, the breaker may feature either GE or ABB branding, but the form, fit, and function remain identical.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 1 review.
- MWMichael W.Verified BuyerReviewingABB / General Electric TJJ436300WL - 300A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars7/28/25TJJ436300WL 3 Pole Circuit Breaker
Great fast shipping on many orders we have placed with Super Breakers, a very good reliable disturber for our business.