ABB XT2NU3050AFF000XXX Molded Case Circuit Breaker
- 50A
- 3 Pole
- Unit Mount
ABB
XT2NU3050AFF000XXX
Molded Case Circuit Breaker
Brand
ABB
SKU
XT2NU3050AFF000XXX
Quantity
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ABB XT2NU3050AFF000XXX - 50A 3 Pole Molded Case Circuit Breaker
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Description
Engineered for industrial power distribution, the XT2NU3050AFF000XXX is a 3-pole, 50A molded case circuit breaker from the SACE Tmax XT family. It provides essential long-time and instantaneous (LI) protection via a fixed thermal-magnetic trip unit. Designed for unit mounting, it fits ABB ReliaGear neXT panelboards and SB switchboards. It is an exact cross-reference for replacing discontinued GE Spectra SEHA36AT0050 and ABB Tmax T3N050TW breakers. This 480V, 25kAIC rated breaker is HACR rated.Specifications
| Brand | ABB |
|---|---|
| Series | XT2 |
| Amperage | 50A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 500VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 25kA @ 480VAC, 18kA @ 600VAC, 35kA @ 500VDC |
| Frame Type | XT2N |
|---|---|
| Terminal Type | Lugs |
| For Use With | ABB ReliaGear neXT Panelboards, ReliaGear SB Switchboards |
| Wire Gauge | 10-2/0 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 | Shunt Trip, Auxiliary Switch, Undervoltage Release, Motor Operator, Padlock Attachment, Terminal Lugs, DIN Rail Adapter |
|---|---|
| Accessories | Lugs Not Included |
| 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, Double Insulated, Reverse Feed |
Product FAQs
7 answersWhich discontinued circuit breakers does the XT2NU3050AFF000XXX directly replace?
This breaker is an exact cross-reference replacement for the discontinued GE Spectra SEHA36AT0050 and the legacy ABB Tmax T3N050TW molded case circuit breakers.
Is this circuit breaker HACR rated for HVAC applications?
Yes, this breaker is HACR rated, making it suitable for heating, air conditioning, and refrigeration equipment branch circuit protection.
What do the "F" designations in the XT2NU3050AFF000XXX part number indicate?
The "F" designations indicate that the breaker features a fixed mounting configuration and is equipped with front terminals.
Is the trip unit on this breaker adjustable?
No, this breaker features a fixed thermal and fixed magnetic trip unit. It provides standard long-time and instantaneous (LI) protection without adjustable dials.
What does the "N" in the XT2N frame designation mean?
The "N" indicates a Normal interrupting capacity class for the XT2 frame, which corresponds to its maximum interrupting rating of 25kAIC at 480VAC and 65kAIC at 240VAC.
Which ABB distribution equipment is this breaker designed to fit?
This unit-mount breaker is compatible with ABB ReliaGear neXT panelboards and ReliaGear SB switchboards.
Is this breaker suitable for DC applications?
Yes, it is rated for up to 500VDC with an interrupting capacity of 35kAIC. When used in DC applications, specific series wiring configurations across the poles are typically required depending on the system voltage.
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