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ABB XT4NU3150AFJ000XXX Molded Case Circuit Breaker
- 150A
- 3 Pole
- Unit Mount
ABB
XT4NU3150AFJ000XXX
Molded Case Circuit Breaker
Brand
ABB
SKU
XT4NU3150AFJ000XXX
Quantity
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ABB XT4NU3150AFJ000XXX - 150A 3 Pole Molded Case Circuit Breaker
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Description
Designed for heavy-duty distribution, the ABB XT4NU3150AFJ000XXX is a 150A molded case circuit breaker from the SACE Tmax XT series. It provides reliable LI protection using fixed thermal and magnetic trip units. This MCCB mounts into ABB ReliaGear neXT panelboards and SB switchboards. It replaces legacy T4N150TW breakers when installed with a retrofit kit. Rated at 25kAIC at 480VAC, this HACR-rated breaker supports reverse feed applications for installation flexibility.Specifications
| Brand | ABB |
|---|---|
| Series | XT4 |
| Amperage | 150A |
| 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 |
| 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, Lugs |
|---|---|
| Accessories | Lugs |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CCC, CE, CSA, cULus, IEC, KEMA, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Reverse Feed |
Product FAQs
9 answersWhich panelboards and switchboards are compatible with this XT4 breaker?
This breaker is designed for installation in ABB ReliaGear neXT panelboards and ABB ReliaGear SB switchboards.
Is the XT4NU3150AFJ000XXX suitable for direct current (DC) applications?
Yes, this breaker is rated for DC systems, providing up to 35kA interrupting capacity at both 250VDC and 600VDC.
Are the lugs on this breaker rated for both copper and aluminum wire?
Yes, the included FC CuAl front terminals are rated for both copper and aluminum conductors ranging from 4 AWG to 300 kcmil.
Can this breaker replace legacy T4 series breakers?
Yes, the XT4NU3150AFJ000XXX can serve as a replacement for legacy T4N150TW breakers when installed with the appropriate retrofit kit.
What does the N in the XT4N frame designation indicate?
The N indicates a Normal interrupting capacity tier for the SACE Tmax XT family, which provides a 25kA rating at 480VAC and 65kA at 240VAC.
Can the thermal or magnetic trip settings be adjusted on this breaker?
No, this model features a TMF (Thermal Magnetic Fixed) trip unit. Both the long-time thermal and instantaneous magnetic protection settings are fixed and cannot be adjusted in the field.
Does this breaker plug into the panel or bolt on?
This is a unit-mount breaker designed to be bolted into place. It is a fixed version, not a plug-in or drawout style.
Can the XT4NU3150AFJ000XXX be reverse fed?
Yes, power can be supplied from the bottom terminals up to a maximum of 600V, allowing for reverse feed applications.
Is this circuit breaker HACR rated?
Yes, this breaker is HACR rated, making it suitable for use with heating, air conditioning, and refrigeration equipment.
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