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ABB XT1NU3090AFF000XXX Molded Case Circuit Breaker
- 90A
- 3 Pole
- Unit Mount
ABB
XT1NU3090AFF000XXX
Molded Case Circuit Breaker
Brand
ABB
SKU
XT1NU3090AFF000XXX
Quantity
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ABB XT1NU3090AFF000XXX - 90A 3 Pole Molded Case Circuit Breaker
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90A 3 Pole Molded Case Circuit Breaker
90A 3 Pole Molded Case Circuit Breaker
90A 3 Pole Molded Case Circuit Breaker
Description
Built for demanding electrical systems, the ABB XT1NU3090AFF000XXX is a 3-pole molded case circuit breaker from the SACE Tmax XT1 series. It provides reliable overcurrent and short-circuit protection. The breaker features a unit-mount design with front terminals, fitting perfectly into ABB SACE Tmax XT panelboards and enclosures. It replaces older Tmax T1 series breakers for modernized facility management.Specifications
| Brand | ABB |
|---|---|
| Series | XT1 |
| Amperage | 90A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600Y/347VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 50kA @ 240VAC, 25kA @ 480VAC, 18kA @ 600Y/347VAC, 35kA @ 250VDC |
| 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 (Standard) |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CE, CSA, cULus, HACR, IEC, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Current Limiting, Reverse Feed, Double Insulated |
Product FAQs
6 answersWhat panelboards are compatible with the XT1NU3090AFF000XXX?
This breaker is designed for use in ABB SACE Tmax XT panelboards, switchboards, and compatible standalone enclosures. It requires the appropriate XT1 mounting hardware or base for proper installation.
Can the trip settings on this 90A XT1 breaker be adjusted?
No. This specific model features a fixed thermal and fixed magnetic trip unit. Neither the long-time overload nor the instantaneous short-circuit pickup levels can be modified in the field.
What does the N in the XT1NU3090AFF000XXX part number indicate?
The N designates the interrupting capacity tier within the ABB SACE Tmax XT1 frame family. It indicates a Normal interrupting rating, which corresponds to a maximum of 50kA at 240V AC.
Does the Tmax XT1 series replace older ABB breaker lines?
Yes, the ABB SACE Tmax XT series is the direct upgrade and replacement for the legacy ABB Tmax T series, specifically the T1 frame. Mounting dimensions and accessories may differ, so verify enclosure compatibility before retrofitting.
What type of mounting does the XT1NU3090AFF000XXX use?
This is a unit mount, or bolt-on, circuit breaker. It is designed to be bolted directly to the busbar or mounting pan of a switchboard or enclosure, rather than plugging into a specialized chassis.
What are the standard safety checks before energizing this breaker?
Before energizing, ensure all terminal lugs are torqued to ABB specifications, verify that the phase barriers are properly installed if required, and manually cycle the breaker to confirm the mechanical linkage operates smoothly.
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