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ABB XT1NU3045AYD000XXX Molded Case Circuit Breaker
- 45A
- 3 Pole
- Unit Mount
ABB
XT1NU3045AYD000XXX
Molded Case Circuit Breaker
Brand
ABB
SKU
XT1NU3045AYD000XXX
Quantity
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ABB XT1NU3045AYD000XXX - 45A 3 Pole Molded Case Circuit Breaker
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Description
Engineered for commercial and industrial environments, the XT1NU3045AYD000XXX is a 3-pole, 45A MCCB from ABB's SACE Tmax XT family. It provides reliable long-time and instantaneous (LI) protection. This unit-mount breaker installs into ReliaGear neXT panelboards and SB switchboards. It also serves as a direct replacement for legacy Tmax T1 series breakers like the T1N045TL. Rated at 50kAIC at 240V, it features a fixed thermal-magnetic trip unit and includes load side lugs.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 ReliaGear neXT Panelboards, ReliaGear SB Switchboards, SACE Tmax XT Panelboards |
| Wire Gauge | 10 AWG - 2/0 AWG (Cu/Al) |
| Max Wire | 2/0 AWG |
| Min Wire | 10 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, Alarm Switch, Padlock Attachment, Motor Operator, Rotary Handle, DIN Rail Adapter, Terminal Shields |
|---|---|
| Accessories | Load Side Lugs Included, Line Side Panel Connectors |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CE, CSA, cULus, IEC, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Reverse Feed, Double Insulated |
Product FAQs
6 answersWhich panelboards are compatible with the XT1NU3045AYD000XXX circuit breaker?
This XT1 frame breaker is designed for use with ABB ReliaGear neXT Panelboards, ReliaGear SB Switchboards, and SACE Tmax XT Panelboards.
What wire sizes and materials are accepted by the lugs on this breaker?
The terminal lugs on this breaker accept 10 AWG to 2/0 AWG copper (Cu) or aluminum (Al) conductors.
What does the LI trip function indicate on this ABB breaker?
The LI designation means the thermal magnetic trip unit provides Long-Time (L) and Instantaneous (I) protection. Both the thermal and magnetic trip settings are fixed on this model.
Can the XT1NU3045AYD000XXX be used in DC voltage applications?
Yes, this breaker is rated for DC applications, providing an interrupting capacity of 36kAIC at both 250VDC and 500VDC.
Can this XT1 breaker replace older legacy circuit breakers?
Yes, the XT1 series serves as a direct replacement for legacy ABB Tmax T1 series breakers. With the appropriate retrofit kits, it can also replace legacy GE Spectra E-frame breakers.
How is the XT1NU3045AYD000XXX mounted?
This breaker features a unit mount design, allowing it to be installed directly into compatible enclosures, switchboards, and panelboards.
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