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ABB XT4NU3100AYJ000XXX Molded Case Circuit Breaker
- 100A
- 3 Pole
- Unit Mount
ABB
XT4NU3100AYJ000XXX
Molded Case Circuit Breaker
Brand
ABB
SKU
XT4NU3100AYJ000XXX
Quantity
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ABB XT4NU3100AYJ000XXX - 100A 3 Pole Molded Case Circuit Breaker
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Description
Engineered for demanding environments, the ABB XT4NU3100AYJ000XXX is a 3-pole, 100A molded case circuit breaker from the Tmax XT4 series. Designed for unit-mount configurations, it fits ABB ReliaGear neXT panels and SB switchboards. It replaces the legacy T4N100TW when used with a retrofit kit. The breaker utilizes a fixed thermal-magnetic (TMF) trip unit for reliable LI protection. It delivers 25kAIC at 480V and includes line and load lugs.Specifications
| Brand | ABB |
|---|---|
| Series | XT4 |
| Amperage | 100A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC, 600VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 25kA @ 480VAC, 18kA @ 600VAC, 35kA @ 250VDC, 35kA @ 600VDC |
| Frame Type | XT4N |
|---|---|
| Terminal Type | Lugs |
| For Use With | ABB ReliaGear neXT Panelboards, ABB ReliaGear SB 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 Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Motor Operator |
|---|---|
| Accessories | Line and Load Lugs 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 | HACR Rated, Reverse Feed, Double Insulation, Positive Operation |
Product FAQs
6 answersWhat equipment is the XT4NU3100AYJ000XXX designed to be installed in?
This unit is engineered for installation within ABB ReliaGear neXT panelboards and ABB ReliaGear SB switchboards.
What do the fixed LI trip functions provide on this breaker?
The LI designation indicates thermal-magnetic protection with Long-Time (L) for overload conditions and Instantaneous (I) for short circuit protection. On this model, both the thermal and magnetic trip thresholds are fixed and cannot be adjusted in the field.
What type of wire is supported by the standard lugs on this XT4N breaker?
The factory-installed terminals accept conductor sizes from 4 AWG up to 300 kcmil. They are dual-rated for use with either copper (Cu) or aluminum (Al) wiring.
Can the XT4NU3100AYJ000XXX be used in direct current systems?
Yes. It is fully rated for DC systems, offering a 35kA interrupting rating at both 250VDC and 600VDC, making it suitable for specialized commercial and industrial DC applications.
What does unit mount mean for this specific ABB breaker?
A unit mount configuration means the breaker bolts directly to a mounting pan or chassis using hardware, requiring physical wire connections to the line side, rather than snapping or plugging directly onto a busbar.
How does the SACE Tmax XT series relate to legacy GE equipment?
Following ABB acquiring GE Industrial Solutions, the SACE Tmax XT family serves as the modern standard for new ReliaGear assemblies. This XT4N frame helps replace many older legacy GE molded case circuit breaker lines in updated system designs.
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