ABB / Trumbull ATT337125 Molded Case Circuit Breaker
- 125A
- 3 Pole
- Bolt-On
Quantity
ABB / Trumbull ATT337125 - 125A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Built to support existing industrial systems, the ATT337125 delivers robust overcurrent protection up to 600VAC. This three-pole, 125-amp breaker features a fixed thermal-magnetic trip mechanism for heavy-duty commercial environments. Designed to fit vintage Trumbull switchboards and legacy GE panelboards, it serves as an exact physical match. It is commonly cross-referenced with the TED134125 substitute. With a 30kAIC rating at 480V, it handles demanding fault currents reliably.Specifications
| Brand | ABB / Trumbull |
|---|---|
| Part Number | ATT337125-R |
| Series | ATT |
| Amperage | 125A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 30kA @ 480VAC, 22kA @ 600VAC, 10kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Trumbull Switchboards, GE Panelboards |
| Wire Gauge | 4 AWG - 300 kcmil |
| Max Wire | 300 kcmil |
| Min Wire | 4 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Lug Kits |
|---|---|
| Accessories | Lugs Not Included |
| Standards | UL 489, NEMA AB-1 |
| Approval | UL |
| Temp Rating | 40°C |
| Construction Features | Common Trip, Interchangeable Trip Unit |
Product FAQs
4 answersWhich panelboards and switchboards are compatible with the ATT337125?
This breaker is a direct fit for legacy GE panelboards and vintage Trumbull switchboards that accept AT frame breakers.
What is the recommended modern substitute for this legacy breaker?
The TED134125 is commonly cross-referenced as the modern replacement for this specific AT frame model.
Are modifications required to install this breaker in an older Trumbull switchboard?
No. Because it is built to the original AT frame dimensions, it bolts directly into compatible legacy GE and Trumbull enclosures without requiring custom retrofitting.
Can the trip settings on the ATT337125 be adjusted in the field?
No, this model features a fixed thermal-magnetic trip unit. The long-time and instantaneous protection settings are factory set and cannot be modified.
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.