ABB / General Electric TB43400AF14 Molded Case Circuit Breaker
- 400A
- 3 Pole
- Bolt-On
Quantity
ABB / General Electric TB43400AF14 - 400A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Part of GE's Tri-Break line, the TB43400AF14 is a 400A, 3-pole molded case circuit breaker engineered for demanding industrial environments. It delivers robust overcurrent protection for heavy-duty electrical systems. This bolt-on MCCB installs into compatible GE switchboards and motor control centers. Built on the TB4 frame, it features a thermal-magnetic trip unit with adjustable magnetic settings. With a 200 kAIC rating at 600VAC, this current-limiting breaker utilizes internal fuses.Specifications
| Brand | ABB / General Electric |
|---|---|
| Part Number | TB43400AF14-R |
| Series | TB4 |
| Amperage | 400A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 200kA @ 240VAC, 200kA @ 480VAC, 200kA @ 600VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | GE Tri-Break Panelboards, GE Switchboards, Motor Control Centers |
| Wire Gauge | 6 AWG - 600 kcmil (Al/Cu) or (2) 2/0 AWG - 250 kcmil (Al/Cu) |
| 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 | Auxiliary Switch, Shunt Trip, Undervoltage Release, Lug Kits |
|---|---|
| Accessories | Lugs Not Included, Current Limiters Included |
| Standards | NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Current Limiting, Internally Fused, Interchangeable Trip |
| Special Features | Integrally Fused |
Product FAQs
4 answersWhat equipment is the TB43400AF14 breaker compatible with?
This bolt-on TB4 frame circuit breaker is designed for installation in GE Tri-Break panelboards, GE switchboards, and industrial motor control centers.
Does the TB43400AF14 provide current-limiting protection?
Yes, this Tri-Break circuit breaker utilizes internal fuses to provide robust current-limiting protection and achieve a high interrupting rating of 200 kAIC across all standard voltages up to 600VAC.
Can the trip settings on the TB43400AF14 be adjusted in the field?
Yes, while the thermal long-time protection is fixed, the magnetic instantaneous trip function is adjustable. This allows for precise coordination with your specific system fault requirements.
What wire sizes are supported by the terminal lugs on this breaker?
The terminal lugs accept a single 6 AWG to 600 kcmil conductor or two 2/0 AWG to 250 kcmil conductors per phase. The lugs are rated for both aluminum and copper wiring.
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.