ABB XT4NU3150AYJ000XXX Molded Case Circuit Breaker
- 150A
- 3 Pole
- Unit Mount
Quantity
ABB XT4NU3150AYJ000XXX - 150A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Delivering 65kAIC at 240V, this 150-amp MCCB provides robust fixed thermal-magnetic trip functions for demanding industrial applications. It mounts into SACE Tmax XT enclosures, ReliaGear neXT panelboards, and ReliaGear SB switchboards. Serving as a modern substitute for legacy T4N150 breakers, it maintains continued operational reliability. The unit includes standard lugs accepting 4 AWG to 300 kcmil wire, offering positive operation and double insulation for enhanced electrical safety.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 |
| Frame Type | XT4N |
|---|---|
| Terminal Type | Lugs |
| For Use With | ReliaGear neXT Panelboards, ReliaGear SB Switchboards, SACE Tmax XT Enclosures |
| 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 |
|---|---|
| Accessories | Lugs |
| 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 |
Product FAQs
6 answersWhat panelboards and switchboards are compatible with the XT4NU3150AYJ000XXX?
This 150A XT4N breaker integrates directly into ABB ReliaGear neXT panelboards, ReliaGear SB switchboards, and standard SACE Tmax XT enclosures.
What wire ranges do the front flat terminals accept?
The included lugs accommodate copper (Cu) and aluminum (Al) conductors ranging from 4 AWG up to 300 kcmil.
Are the thermal and magnetic trip settings adjustable on this model?
No. This breaker utilizes a thermal magnetic trip unit with strictly fixed Long-Time (thermal) and fixed Instantaneous (magnetic) protection elements.
Does this XT4N circuit breaker support DC voltage applications?
Yes. In addition to standard AC voltages, this breaker carries a 35kA interrupting rating for both 250VDC and 600VDC systems.
What is the short circuit interrupting capacity for 480V commercial systems?
The XT4N frame provides a 25kAIC interrupting rating at 480VAC. For lower voltage 240VAC applications, the protection rating increases to 65kAIC.
Is this a draw-out or unit mount configuration?
The XT4NU3150AYJ000XXX is a fixed unit mount breaker designed to be bolted securely into an enclosure or backpan. It does not support plug-in or draw-out installations.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
100 SuperPoints = $1 off.
Warranties
Add an extra year of protection
60-Day Warranty
Your purchase includes 60 days of SuperBreakers warranty coverage.
Add a 1-year warranty extension in your cart.
Get a Quote
Don’t see what you’re looking for?
We source obsolete and hard-to-find parts every day.
Shipping
Free Shipping Policy
Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
Same Day Shipping
We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments
Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping
All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.