ABB Tmax XT4 Molded Case Circu...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$9,866.96
ABB Tmax XT4 Molded Case Circuit Breaker, Thermal Magnetic Adjustable, 3 Poles

ABB Tmax XT4 Molded Case Circuit Breaker, Thermal Magnetic Adjustable, 3 Poles

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Model: XT4HE3225BFF000XXX

In Stock (leaves warehouse same day if ordered before 3pm ET)

$9,866.96
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ABB Tmax XT4 Molded Case Circuit Breaker, Thermal Magnetic Adjustable, 3 Poles

The ABB Tmax XT4 is a molded case circuit breaker from ABB's Tmax XT series, built on the XT4 frame rated to 250A, 600V (UL) / 250A, 690V (IEC). It uses a thermal magnetic adjustable (TMD/TMA) trip unit across 3 poles, giving installers a compact breaker platform that supports both thermal magnetic and electronic protection within the same frame. The XT4 frame is engineered as an ideal solution for all distribution levels, from the main low voltage switchboard down to the subswitchboards in an installation, making it a flexible choice for panelboard and switchboard designers who need dependable, field-adjustable overcurrent protection in a single molded case package.

Key Features

  • Frame: XT4 frame rated to 250A, 600V (UL) / 250A, 690V (IEC), supporting both thermal magnetic and electronic protection in the same physical frame size.
  • Trip Type: Thermal magnetic adjustable (TMD/TMA) trip unit for field-adjustable thermal and magnetic overcurrent protection.
  • Poles: 3-pole configuration sized for three-phase circuit protection in commercial and industrial distribution systems.
  • Let-Through Limiting: High specific let-through current peak and energy limiting characteristics that allow the circuits and equipment on the load side to be sized in an optimum way, reducing downstream component ratings.
  • Application Range: Ideal solution for all distribution levels, from the main low voltage switchboard to the subswitchboards in the installation.
  • Standard: Rated for IEC-specific installation needs alongside the UL rating carried by the XT4 frame, giving specifiers dual-standard flexibility.
  • Sub Brand: Part of ABB's Tmax XT molded case circuit breaker platform.

Technical Specifications

  • Brand Name: ABB
  • Sub Brand: Tmax XT
  • Outer Quantity: 1

Typical Applications

  • Main Low Voltage Switchboards
  • Subswitchboards and Distribution Panels
  • Commercial and Industrial Power Distribution
  • Panelboard and Load Center Circuit Protection
  • Circuit and Equipment Protection on the Load Side

Why ABB?

ABB's Tmax XT series pairs a thermal magnetic adjustable (TMD/TMA) trip with high specific let-through current peak and energy limiting characteristics, helping engineers size downstream circuits and equipment in an optimum way. Built on the XT4 frame with both thermal magnetic and electronic protection capability and dual UL/IEC rating references, the Tmax XT4 is engineered to deliver dependable, code-conscious protection from the main switchboard all the way to the subswitchboards throughout the installation.

Manufacturer Resources

Spec Sheet

Product Specs

Product Type:
Circuit Breaker
Series:
Tmax XT
Configuration:
3-Pole
Voltage Rating:
600V
Amperage Rating:
250A
Standards:
IEC
Department:
Electrical
Product Group:
Wiring Devices
Product Subgroup:
Circuit Breakers

ABB XT4HE3225BFF000XXX – Frequently Asked Questions

1) Will the ABB Tmax XT4 breaker work on a 480V three-phase distribution panel?
Yes. The Tmax XT4 molded case breaker is rated 600V and comes in a 3-pole configuration, so it covers 480V three-phase feeders and branch circuits. The frame carries a 250A rating at 600V on the UL side and 250A at 690V on the IEC side.
2) What does the thermal magnetic adjustable (TMD/TMA) trip on the ABB XT4 let me adjust in the field?
The TMD/TMA trip unit gives you field-adjustable thermal and magnetic overcurrent protection, so the long-time thermal element and the instantaneous magnetic pickup can be set on site rather than fixed at the factory. That is what lets one 250A frame be dialed in to the actual conductor and load it is protecting instead of swapping breakers.
3) What is the highest amperage I can set this ABB XT4 breaker to?
250A is the ceiling. The XT4 frame is rated 250A, and the adjustable thermal element sets the trip point at or below that. If your feeder needs more than 250A, this frame is not the one.
4) What is the closest Square D equivalent to the ABB Tmax XT4 thermal magnetic molded case breaker?
The nearest Square D counterpart is the PowerPacT B thermal magnetic circuit breaker. Both are molded case breakers using a thermal magnetic trip, so the protection method is the same approach: a thermal element for overload and a magnetic element for short circuit. The ABB Tmax XT4 covered here is the 3-pole, 250A, 600V configuration with an adjustable TMD/TMA trip unit, so when you cross to the PowerPacT B you need to confirm the frame ampere rating, pole count, and voltage class match what your panel schedule calls for before you order.
5) If the breaker has to plug into an I-Line panelboard instead of being bolted in, what should I use?
Use the Square D PowerPacT Q I-Line circuit breaker for that application. I-Line is a plug-on bus connection system, so the breaker has to be built for that interface; the ABB Tmax XT4 is a molded case breaker on the XT4 frame and is not an I-Line plug-on device. If the existing panel is an I-Line switchboard, the mounting interface decides the choice regardless of how closely the trip ratings line up, so confirm the panel type before selecting either one.
6) Can a DIN rail miniature breaker be used in place of the ABB Tmax XT4?
No, they serve different parts of the distribution system. The Square D C60 UL489 miniature circuit breaker is a DIN rail mount MCB, typically used for branch and control circuits inside enclosures and on rail-mounted assemblies. The ABB Tmax XT4 is a 250A, 600V molded case breaker intended for main low voltage switchboards and subswitchboards feeding downstream distribution. An MCB will not carry a 250A feeder, and it needs DIN rail rather than the mounting a molded case frame uses, so treat them as separate classes of device rather than alternatives.
7) Is the ABB Tmax XT4 a UL breaker or an IEC breaker?
Both standards are referenced. The XT4 frame carries a UL rating at 250A, 600V and an IEC rating at 250A, 690V, and the spec record lists IEC as the standard. For projects specified to IEC or for export equipment, that dual reference is the reason specifiers pick this frame.
8) Do I need a thermal magnetic or an electronic trip unit for a main switchboard breaker?
The XT4 frame supports both thermal magnetic and electronic protection in the same physical frame size, so the choice is about coordination, not about changing breaker footprints. Thermal magnetic adjustable (TMD/TMA) covers straightforward feeder and branch protection where you need a settable long-time and instantaneous. Electronic trip is what you move to when you need tighter selective coordination bands between a main and downstream devices. This version is the thermal magnetic adjustable, 3-pole.
9) Why does the ABB XT4's let-through rating matter for the gear downstream?
The XT4 has high specific let-through current peak and energy limiting characteristics, which caps the peak current and energy that actually passes to the load side during a fault. That lets the circuits and equipment downstream be sized in an optimum way, so downstream component ratings can come down instead of everything being specified to the full prospective fault current.
10) What ABB part number do I order for the 3-pole thermal magnetic Tmax XT4?
The ordering number is XT4HE3225BFF000XXX, an ABB Tmax XT series breaker on the XT4 frame, 3 poles, thermal magnetic adjustable trip, 250A, 600V.
11) What are the alternatives to the ABB Tmax XT4 if I need a different mounting or a smaller breaker?
Two different directions. For an I-Line panelboard where the breaker plugs onto the bus rather than being unit mounted, the Square D PowerPacT Q I-Line breaker is the one built for that interface. For a straight thermal magnetic molded case breaker from another manufacturer, Square D's PowerPacT B is the comparable type. If the circuit is small and the enclosure is DIN rail, neither molded case frame applies, look at the Square D Multi9 C60 or the C60 UL489 miniature breaker instead. The XT4 is a 250A, 600V molded case frame, so it sits well above the miniature breakers in rating.
12) I need single pole 120V protection, not three phase. What is the alternative?
Look at the Square D Multi9 C60 1-pole C-curve miniature circuit breaker rated 120V AC. The ABB Tmax XT4 covered here is a 3-pole configuration built for three-phase circuits at 600V, so it is the wrong device for a single phase 120V branch. The C-curve on the Multi9 refers to its tripping characteristic for typical mixed resistive and inductive loads, which is a different way of specifying protection than the adjustable thermal magnetic trip on the XT4.
13) Our spec sheet references IEC standards. Does the Square D PowerPacT B cover that the same way the ABB does?
The ABB Tmax XT4 is documented against IEC standards alongside the UL rating carried by the XT4 frame, which is what gives specifiers dual-standard flexibility on projects that reference both. The Square D PowerPacT B is a thermal magnetic molded case breaker; if your submittal calls out an IEC reference, verify the standards listing on the specific PowerPacT B catalog number with the engineer of record before substituting, since the standards callout is what the reviewer will check.
14) Can I use the ABB Tmax XT4 as a main breaker as well as a feeder breaker?
Yes, within its 250A rating. The XT4 frame is built for use at all distribution levels, from the main low voltage switchboard down to the subswitchboards and distribution panels. The same frame covering both means you can standardize on one breaker platform through the lineup instead of mixing families.
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Does the ABB XT4HE3225BFF000XXX come with a warranty?
Absolutely. The ABB XT4HE3225BFF000XXX is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
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