ABB / Trumbull ATT337200 Molded Case Circuit Breaker
- 200A
- 3 Pole
- Bolt-On
Quantity
ABB / Trumbull ATT337200 - 200A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Rated 30 kAIC at 480VAC, this 200A molded case circuit breaker provides essential long-time and instantaneous protection for three-phase systems. The ABB ATT337200 is designed to support older commercial electrical infrastructure. It bolts into legacy GE panelboards and Trumbull switchboards, ensuring a precise fit without extensive modifications. Replaced by the TFK236200 in updated catalogs, it features fixed thermal-magnetic trip elements to handle demanding 600VAC loads with reliability.Specifications
| Brand | ABB / Trumbull |
|---|---|
| Part Number | ATT337200-R |
| Series | ATT |
| Amperage | 200A |
| 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 | 1 AWG - 300 kcmil |
| Max Wire | 300 kcmil |
| Min Wire | 1 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 |
| Approval | UL |
| Temp Rating | 40°C |
| Construction Features | Common Trip, Interchangeable Trip Unit |
Product FAQs
5 answersWhich panelboards and switchboards accept the ATT337200 breaker?
This legacy AT frame breaker is designed for bolt-on installation in older Trumbull switchboards and compatible General Electric (GE) panelboards.
What is the acceptable wire size range for the lugs on the ATT337200?
The standard lugs accommodate wire sizes ranging from 1 AWG up to 300 kcmil. Always verify proper torque values during installation.
What type of trip unit does the ATT337200 utilize?
It is equipped with a fixed thermal and fixed magnetic trip unit, providing standard Long-Time and Instantaneous (LI) protection for your electrical system.
Is the ATT337200 rated for use in DC applications?
Yes, alongside its standard AC ratings, this breaker is certified for 250VDC systems with a 10kA interrupting capacity.
Why is this breaker listed under both Trumbull and General Electric (GE)?
Trumbull Electric was acquired by General Electric, meaning many legacy AT frame breakers are cross-listed. This model is designed to support older commercial infrastructure for both brands.
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