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ABB XT1SU3045AFD000XXX Molded Case Circuit Breaker
- 45A
- 3 Pole
- Unit Mount
ABB
XT1SU3045AFD000XXX
Molded Case Circuit Breaker
Brand
ABB
SKU
XT1SU3045AFD000XXX
Quantity
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ABB XT1SU3045AFD000XXX - 45A 3 Pole Molded Case Circuit Breaker
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Description
Designed as a drop-in solution for commercial facilities, the XT1SU3045AFD000XXX provides 45A of reliable overcurrent protection. This 3-pole unit mount breaker belongs to the SACE Tmax XT1 frame family and features a fixed thermal-magnetic (LI) trip unit. Rated for 35kAIC at 480VAC, it installs into ABB Tmax XT panelboards, switchboards, and standard enclosures. The device replaces legacy Tmax T1 series breakers and includes Cu/Al lugs (10-2/0 AWG) for straightforward wire termination.Specifications
| Brand | ABB |
|---|---|
| Series | XT1 |
| Amperage | 45A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600Y/347VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 22kA @ 600Y/347VAC, 42kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | ABB SACE Tmax XT Panelboards, Switchboards, Enclosures |
| Wire Gauge | 10 AWG - 2/0 AWG |
| 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 | Auxiliary Switch, Shunt Trip, Undervoltage Release, Alarm Switch, Lug Kits |
|---|---|
| Accessories | Lugs (Kit FC CuAl 10-2/0 AWG) |
| Standards | CSA C22.2 No. 5, HACR, IEC 60947-2, UL 489 |
| Approval | CCC, CE, CSA, cULus, IEC, KEMA, RINA, RoHS, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Reverse Feed, Double Insulated |
Product FAQs
7 answersWhat legacy ABB circuit breakers does the XT1SU3045AFD000XXX replace?
This XT1 frame breaker serves as a direct replacement and upgrade for legacy ABB Tmax T1 series breakers, including T1N045TL units. It fits into the same ReliaGear neXT panelboards and switchboards.
Can the XT1SU3045AFD000XXX be reverse fed?
Yes, this breaker features reverse feed capability. Power can be supplied from either the top or bottom terminals without compromising its protective functions or interrupting ratings.
Can this unit-mount breaker be installed on a DIN rail?
Yes, while it is configured for unit mounting, it can be installed on a standard 35mm DIN rail by adding an ABB XT1 DIN rail adapter bracket, such as part number KXT1EDIN-3.
How does the fixed thermal-magnetic trip unit operate on this breaker?
The fixed thermal-magnetic (LI) trip unit provides non-adjustable long-time overload and instantaneous short-circuit protection. Both the thermal and magnetic trip thresholds are factory-set for 45A applications and cannot be modified in the field.
Can this 3-pole breaker be used in single-phase applications?
Yes, ABB XT1 three-pole circuit breakers are UL listed for use in single-phase applications up to 347VAC.
What type of enclosures and panels accept this XT1 breaker?
The XT1SU3045AFD000XXX is designed for installation in ABB SACE Tmax XT panelboards, ReliaGear neXT panelboards, ReliaGear SB switchboards, and compatible standalone enclosures.
Is this breaker rated for direct current (DC) systems?
Yes, it is rated for DC applications, providing up to 42kA of interrupting capacity at 250VDC.
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