ABB XT4LU3100AYJ000XXX Molded Case Circuit Breaker
- 100A
- 3 Pole
- Unit Mount
Quantity
ABB XT4LU3100AYJ000XXX - 100A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Designed to handle severe fault conditions, this 100-amp molded case circuit breaker delivers an impressive 100kA interrupting capacity at 480VAC. It installs seamlessly into ABB ReliaGear neXT panelboards and switchboards, acting as a direct upgrade for legacy T4L100TW components. The XT4LU3100AYJ000XXX utilizes fixed thermal-magnetic trip technology and features double insulation, positive operation, and current-limiting protection for critical industrial infrastructure.Specifications
| Brand | ABB |
|---|---|
| Series | XT4 |
| Amperage | 100A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC, 600VDC |
| Phase | 3 |
| AIC Rating | 200kA @ 240VAC, 100kA @ 480VAC, 50kA @ 600VAC, 85kA @ 250VDC, 75kA @ 600VDC |
| Frame Type | XT4L |
|---|---|
| Terminal Type | Lugs |
| For Use With | ABB ReliaGear neXT Panelboards, Switchboards |
| Wire Gauge | 4 AWG - 300 kcmil (Cu/Al) |
| Max Wire | 300 kcmil |
| Min Wire | 4 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Auxiliary Switch, Shunt Trip, Undervoltage Release, Lug Kits, Motor Operator, Rotary Handle |
|---|---|
| Accessories | Front Terminals Included, Lugs Not Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CCC, CSA, cULus, IEC, KEMA, RINA, UL |
| Temp Rating | -25C to 70C |
| Construction Features | Current Limiting, Reverse Feed, 100% Rated, Double Insulation |
Product FAQs
7 answersWhich panelboards are compatible with the XT4LU3100AYJ000XXX?
This breaker is specifically designed for integration into ABB ReliaGear neXT panelboards and compatible commercial switchboards.
What does the "L" in the XT4L frame designation indicate?
In the ABB Tmax XT nomenclature, the "L" indicates an extra-high interrupting capacity. For this 100A frame, it delivers a 100kAIC rating at 480VAC and 200kAIC at 240VAC.
Are the lugs included with this breaker, and what wire sizes do they accept?
Yes, this breaker comes with factory-installed lugs that accept 4 AWG to 300 kcmil copper (Cu) or aluminum (Al) conductors, making it ready for immediate termination.
Is the XT4LU3100AYJ000XXX suitable for direct current (DC) systems?
Yes, in addition to standard AC voltages, this breaker is fully rated for DC applications. It provides an interrupting capacity of 85kAIC at 250VDC and 75kAIC at 600VDC.
What does the "LI" trip function code mean on this breaker?
The "LI" designation indicates that the thermal-magnetic trip unit provides both Long-Time (overload) and Instantaneous (short-circuit) protection. On this specific model, these trip settings are fixed.
What does "Unit Mount" mean for the installation of this breaker?
A unit mount configuration means the breaker is designed to be bolted directly to a backpan or mounting plate using standard hardware, rather than plugging into a specialized busbar chassis.
Why is this breaker associated with both ABB and General Electric?
Following ABB's acquisition of GE Industrial Solutions, the Tmax XT series was adopted as the standard for modern ABB and legacy GE electrical distribution systems, including the ReliaGear neXT platform.
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