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ABB XT1NU3040AFD000XXX Molded Case Circuit Breaker
- 40A
- 3 Pole
- Unit Mount
ABB
XT1NU3040AFD000XXX
Molded Case Circuit Breaker
Brand
ABB
SKU
XT1NU3040AFD000XXX
Quantity
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ABB XT1NU3040AFD000XXX - 40A 3 Pole Molded Case Circuit Breaker
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Description
Designed for robust industrial applications, the XT1NU3040AFD000XXX is a 40A, 3-pole MCCB. As part of the SACE Tmax XT1 series, it delivers dependable LI protection. This unit-mount breaker is engineered to fit ABB SACE Tmax XT panelboards and switchboards. It can also replace discontinued T1N040TW models to maintain system continuity. Featuring a 25kAIC interrupt capacity at 480VAC, it utilizes a fixed thermal-magnetic trip mechanism (TMF) and includes load-side lugs.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 |
| Terminal Type | Lugs |
|---|---|
| For Use With | ABB SACE Tmax XT Panelboards, Switchboards |
| Wire Gauge | 10 AWG - 2/0 AWG (Cu/Al) |
| 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, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CE, CSA, IEC, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Reverse Feed |
Product FAQs
7 answersWhat panelboards are compatible with this breaker?
The XT1NU3040AFD000XXX is designed for installation in ABB SACE Tmax XT panelboards and switchboards.
Can the XT1NU3040AFD000XXX be reverse fed?
Yes, power can be supplied from the bottom terminals up to the maximum voltage rating, making it suitable for reverse feed applications.
How must this breaker be wired for 500VDC applications?
To safely achieve the 500VDC rating, all three poles of the circuit breaker must be wired in series.
What type of trip unit does this breaker use?
It features a Thermal Magnetic Fixed (TMF) trip unit, providing non-adjustable long-time and instantaneous (LI) overcurrent protection.
Does this breaker replace any legacy models?
Yes, this model serves as a direct replacement for the discontinued ABB T1N040TW circuit breaker.
Can this 3-pole breaker be used in single-phase systems?
Yes, XT1 three-pole circuit breakers are UL listed for single-phase applications up to 347VAC.
What are the wire size requirements for the terminals?
The included lugs accept 10 AWG through 2/0 AWG copper or aluminum conductors. Tightening torque values are printed directly on the terminals based on the specific wire size used.
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