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ABB XT1NU3045AFF000XXX Molded Case Circuit Breaker
- 45A
- 3 Pole
- Unit Mount
ABB
XT1NU3045AFF000XXX
Molded Case Circuit Breaker
Brand
ABB
SKU
XT1NU3045AFF000XXX
Quantity
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ABB XT1NU3045AFF000XXX - 45A 3 Pole Molded Case Circuit Breaker
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Description
Designed for flexible integration, the ABB XT1NU3045AFF000XXX is a 45A, 3-pole molded case circuit breaker from the SACE Tmax XT family. It provides reliable thermal-magnetic protection for industrial applications. This unit mounts into Tmax XT panelboards and serves as an upgrade for legacy Tmax T1 series breakers. Rated at 25kAIC at 480VAC, it features a double-insulated, reverse-feed capable design and comes with front flat terminals, requiring separate lug kits for wire termination.Specifications
| Brand | ABB |
|---|---|
| Series | XT1 |
| Amperage | 45A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600Y/347VAC, 250VDC, 500VDC |
| Phase | 3 |
| AIC Rating | 50kA @ 240VAC, 25kA @ 480VAC, 18kA @ 600Y/347VAC, 36kA @ 250VDC, 36kA @ 500VDC |
| Frame Type | XT1 |
|---|---|
| Terminal Type | Lugs |
| For Use With | ABB SACE Tmax XT Panelboards, Switchboards, Enclosures |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Auxiliary Switch, Shunt Trip, Undervoltage Release, Alarm Switch, Lug Kits |
|---|---|
| Accessories | None (No Lugs Included) |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CE, CSA, cULus, IEC, KEMA, RINA, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Reverse Feed, Double Insulated |
Product FAQs
9 answersWhat legacy ABB circuit breaker series does the XT1NU3045AFF000XXX replace?
This Tmax XT1 breaker serves as a direct upgrade and replacement for the legacy ABB Tmax T1 series circuit breakers.
Does the XT1NU3045AFF000XXX come with wire lugs installed?
No, the AFF designation indicates it is equipped with front flat terminals only. Separate lug kits are required for wire termination.
What wire size is accepted by the standard mechanical lugs for this XT1 breaker?
When equipped with standard ABB XT1 mechanical lugs, the terminals accept 10 AWG to 2/0 AWG copper or aluminum wire.
Can the XT1NU3045AFF000XXX be reverse fed?
Yes, this breaker features a reverse-feed capable design, allowing power to be supplied from either the top or bottom terminals.
What is the frame size capacity of the XT1NU3045AFF000XXX?
It is built on the ABB Tmax XT1 frame, which has a maximum capacity of 125A, although this specific unit is factory set with a 45A fixed thermal-magnetic trip unit.
Can the trip settings on the XT1NU3045AFF000XXX be adjusted?
No, this breaker is equipped with a fixed thermal and fixed magnetic trip unit, meaning the Long-Time and Instantaneous trip functions cannot be altered in the field.
What equipment is the XT1NU3045AFF000XXX compatible with?
It is designed for installation in ABB SACE Tmax XT panelboards, switchboards, and standard enclosures.
What are the DC interrupting ratings for this breaker?
In direct current applications, this breaker provides an interrupting rating of 36kAIC at both 250VDC and 500VDC.
Does this Tmax XT1 breaker feature double insulation?
Yes, it features a double-insulated construction that isolates the live internal mechanisms from the front of the breaker for enhanced safety.
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