ABB / General Electric TJJ436250 Molded Case Circuit Breaker
- 250A
- 3 Pole
- Bolt-On
Quantity
ABB / General Electric TJJ436250 - 250A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Serving as a critical safety component, this 250-amp J-Frame breaker protects three-phase electrical distribution systems from damaging fault currents. Facility managers rely on this specific configuration to maintain operational continuity in legacy GE A-Series panelboards and Spectra switchboards. The robust bolt-on mounting style guarantees reliable phase connections.Specifications
| Brand | ABB / General Electric |
|---|---|
| Part Number | TJJ436250 |
| Series | TJJ |
| Amperage | 250A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC, 500VDC |
| Phase | 3 |
| AIC Rating | 42kA @ 240VAC, 30kA @ 480VAC, 22kA @ 600VAC, 20kA @ 250VDC, 20kA @ 500VDC |
| Frame Type | TJJ |
|---|---|
| Terminal Type | Lugs |
| For Use With | GE A-Series Panelboards, GE Spectra Switchboards, 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, Lug Kits |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | UL 489, NEMA AB-1 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Non-Interchangeable Trip |
Product FAQs
6 answersIs the GE TJJ436250 still manufactured, or is there a modern replacement?
The GE TJJ series is a legacy product line that entered limited production after ABB acquired GE Industrial Solutions. For new installations or direct replacements, ABB recommends the Tmax XT series, specifically the XT3 or XT4 frame for 250A applications. Retrofit kits are available for integrating XT breakers into existing Spectra panelboards.
What is the magnetic trip adjustment range for this 250A breaker?
The TJJ436250 features a fixed thermal trip and an adjustable magnetic trip. The instantaneous magnetic pickup can be adjusted from 750A to 2500A using the dials located on the front of the trip unit.
What are the lug wire capacity options for the TJJ436250?
The factory-installed line and load lugs support two wiring configurations. You can terminate a single copper or aluminum conductor ranging from 6 AWG to 600 kcmil, or you can terminate dual conductors ranging from 2/0 AWG to 250 kcmil per phase.
Is the TJJ436250 suitable for reverse feed installations?
Yes, this breaker does not have a line or load restriction. It is suitable for reverse feed applications, allowing power to be supplied to either the top or bottom terminals without affecting the trip calibration.
Can the TJJ436250 be used in 500VDC applications?
Yes, this breaker is rated for DC applications, including ungrounded battery systems. It provides a 20kA interrupting capacity at both 250VDC and 500VDC.
Which GE distribution equipment accepts the TJJ436250 breaker?
This J-Frame breaker is designed for bolt-on installation in legacy GE A-Series panelboards, GE Spectra switchboards, and GE Motor Control Centers.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
100 SuperPoints = $1 off.
Warranties
Add an extra year of protection
60-Day Warranty
Your purchase includes 60 days of SuperBreakers warranty coverage.
Add a 1-year warranty extension in your cart.
Get a Quote
Don’t see what you’re looking for?
We source obsolete and hard-to-find parts every day.
Shipping
Free Shipping Policy
Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
Same Day Shipping
We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments
Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping
All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.
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.