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ABB XT1NU3020AYD000XXX Molded Case Circuit Breaker
- 20A
- 3 Pole
- Unit Mount
ABB
XT1NU3020AYD000XXX
Molded Case Circuit Breaker
Brand
ABB
SKU
XT1NU3020AYD000XXX
Quantity
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ABB XT1NU3020AYD000XXX - 20A 3 Pole Molded Case Circuit Breaker
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20A 3 Pole Molded Case Circuit Breaker
20A 3 Pole Molded Case Circuit Breaker
20A 3 Pole Molded Case Circuit Breaker
Description
Delivering 20 amps of protection, the ABB XT1NU3020AYD000XXX is a 3-pole molded case circuit breaker from the Tmax XT1N family. This configuration is tailored for ABB ReliaGear NeXT panelboards. It includes a line side connector and load side lugs, serving as a direct replacement for legacy T1N020TW breakers. The unit boasts a 25kAIC interrupt rating at 480VAC. Its fixed thermal-magnetic trip system ensures consistent performance, while the included lugs accept 10-2/0 AWG wire.Specifications
| Brand | ABB |
|---|---|
| Series | XT1 |
| Amperage | 20A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600Y/347VAC, 250VDC, 500VDC |
| Phase | 3 |
| AIC Rating | 50kA @ 240VAC, 25kA @ 480VAC, 18kA @ 600Y/347VAC, 35kA @ 250VDC, 35kA @ 500VDC |
| Frame Type | XT1 |
|---|---|
| Terminal Type | Lugs |
| For Use With | ABB ReliaGear NeXT Panelboards |
| 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 | Auxiliary Switch, Shunt Trip, Undervoltage Release, Motor Operator, Rotary Handle, Padlock Attachment, Terminal Shields |
|---|---|
| Accessories | Line Side Connector, Load Side Lugs Included, Mounting Hardware |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CE, CSA, HACR, IEC, UL, cULus |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Double Insulated, Reverse Feed |
Product FAQs
7 answersWhat wire sizes are compatible with the factory lugs on this ABB XT1 breaker?
The standard lugs accept 10 AWG to 2/0 AWG copper or aluminum conductors. Ensure proper torque specifications are met during installation.
What panelboards is the XT1NU3020AYD000XXX designed to fit?
It is primarily designed for ABB ReliaGear NeXT panelboards. As a unit mount breaker, it can also be installed in compatible standalone enclosures or switchboards that accept Tmax XT1 frames.
Are the trip settings adjustable on this 20A breaker?
No. It is equipped with a thermal magnetic trip unit that features fixed long-time thermal and fixed instantaneous magnetic trip settings.
Does this molded case breaker support direct current (DC) systems?
Yes, it is rated for use in DC applications, providing a 35kA interrupting capacity at both 250VDC and 500VDC.
How does the XT1NU3020AYD000XXX mount inside an enclosure?
This is a unit mount breaker. It bolts directly to the mounting pan or baseplate of the panelboard or enclosure, rather than plugging into a bus assembly.
What are the AC interrupting ratings for this specific Tmax XT1 model?
It offers a 50kA capacity at 240VAC, a 25kA capacity at 480VAC, and an 18kA capacity at 600VAC or 347VAC.
What does the LI designation mean on the trip unit?
The LI code indicates that the breaker provides Long-Time (L) protection for sustained overloads and Instantaneous (I) protection for immediate short circuit fault clearing.
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