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ABB XT1SU3050AFF000XXX Molded Case Circuit Breaker
- 50A
- 3 Pole
- Unit Mount
ABB
XT1SU3050AFF000XXX
Molded Case Circuit Breaker
Brand
ABB
SKU
XT1SU3050AFF000XXX
Quantity
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ABB XT1SU3050AFF000XXX - 50A 3 Pole Molded Case Circuit Breaker
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Description
Engineered for commercial and industrial applications, the ABB XT1SU3050AFF000XXX provides robust power distribution within the SACE Tmax XT1 frame. This 3-pole, 50A unit mount MCCB integrates seamlessly into ReliaGear neXT panelboards and ReliaGear SB switchboards. It serves as a drop-in replacement for legacy Tmax T1 series breakers, specifically the T1N050TL. Rated at 35 kAIC at 480VAC, it features fixed thermal and magnetic trip settings (LI) along with current-limiting capabilities.Specifications
| Brand | ABB |
|---|---|
| Series | XT1 |
| Amperage | 50A |
| 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 |
| Frame Type | XT1 |
|---|---|
| Terminal Type | Lugs |
| For Use With | ABB ReliaGear neXT Panelboards, ReliaGear SB Switchboards, SACE Tmax XT Panelboards |
| 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 (Requires Lugs) |
| 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, Current Limiting, Reverse Feed, Double Insulated, Suitable for single phase application up to 347VAC |
Product FAQs
10 answersWhat legacy ABB circuit breaker does the XT1SU3050AFF000XXX replace?
This SACE Tmax XT1 breaker serves as a direct drop-in replacement for legacy ABB Tmax T1 series breakers, such as the T1N050TL, offering upgraded performance in the same footprint.
Which ABB panelboards and switchboards are compatible with this XT1 breaker?
The XT1SU3050AFF000XXX is designed for seamless integration into ABB ReliaGear neXT panelboards, ReliaGear SB switchboards, and SACE Tmax XT panelboards.
What is the magnetic trip threshold for the XT1SU3050AFF000XXX?
This breaker features a TMF fixed thermal and fixed magnetic trip unit. While the thermal overload is set to 50A, the instantaneous magnetic short-circuit protection is fixed at 500A.
What type of terminal connections are provided on this breaker?
The FF designation in the catalog number indicates that the breaker comes equipped with standard front terminals for both the line and load side connections.
Can this 3-pole XT1 breaker be used in single-phase applications?
Yes, XT1 three-pole circuit breakers equipped with thermal-magnetic trip units are marked as suitable for single-phase applications up to 347VAC according to UL standards.
Can power be reverse-fed into the bottom terminals of this breaker?
Yes, power can be supplied from the bottom terminals of the XT1 breaker up to its maximum voltage rating without compromising the internal arc-quenching capabilities.
What UL standard does the XT1SU3050AFF000XXX comply with?
This molded case circuit breaker is fully tested and certified to the UL 489 standard for molded case circuit breakers, molded case switches, and circuit breaker enclosures.
What is the maximum frame size for the SACE Tmax XT1 series?
The XT1 frame has a maximum capacity of 125A. This 50A model utilizes the same physical dimensions as the 125A version, ensuring standardized mounting across the XT1 lineup.
What is the operating temperature range for the XT1SU3050AFF000XXX?
This Tmax XT circuit breaker is rated for continuous operation in ambient air temperatures ranging from -25 to +70 degrees Celsius.
Is the XT1SU3050AFF000XXX rated for HVAC applications?
Yes, this breaker carries an HACR Type rating, making it suitable for use with heating, air conditioning, and refrigeration equipment.
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