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ABB XT1NU3040AFF000XXX Molded Case Circuit Breaker
- 40A
- 3 Pole
- Unit Mount
ABB
XT1NU3040AFF000XXX
Molded Case Circuit Breaker
Brand
ABB
SKU
XT1NU3040AFF000XXX
Quantity
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ABB XT1NU3040AFF000XXX - 40A 3 Pole Molded Case Circuit Breaker
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Description
Providing advanced circuit protection, the XT1NU3040AFF000XXX is a 40A, 3-pole MCCB from the ABB SACE Tmax XT1 family. It ensures precise LI defense for commercial systems. The unit-mount device is compatible with ABB ReliaGear neXT panelboards and SB switchboards. It is also an exact cross-reference for replacing older T1N040TW breakers. Capable of handling 25kAIC at 480VAC, this model features a front terminal configuration without pre-installed lugs and supports reverse feed applications.Specifications
| Brand | ABB |
|---|---|
| Series | XT1 |
| Amperage | 40A |
| 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 |
| 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, Padlock Attachment, Rotary Handle, Motor Operator, 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, Double Insulated, Reverse Feed |
Product FAQs
6 answersWhat panelboards are compatible with the XT1NU3040AFF000XXX breaker?
This XT1 frame breaker is designed for installation in ABB ReliaGear neXT Panelboards and ReliaGear SB Switchboards.
What does the N in the XT1NU3040AFF000XXX catalog number signify?
The N indicates ABB's Normal interrupting rating tier, which provides a maximum interrupting capacity of 50kAIC at 240VAC and 25kAIC at 480VAC.
Is the XT1NU3040AFF000XXX rated for direct current (DC) systems?
Yes, this thermal-magnetic circuit breaker is rated for DC applications, offering an interrupting capacity of 36kAIC at both 250VDC and 500VDC.
Can I adjust the trip settings on this 40A XT1 breaker?
No, this specific model is equipped with a fixed thermal and fixed magnetic trip unit, providing non-adjustable Long-Time and Instantaneous (LI) protection.
Which legacy ABB breaker does the XT1NU3040AFF000XXX replace?
This Tmax XT1 breaker serves as a direct cross-reference and replacement for the legacy ABB Tmax T1N040TW circuit breaker.
What type of mounting connection does this breaker use?
It features a unit-mount, bolt-on connection designed for secure integration into compatible ABB power distribution equipment.
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