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ABB XT1NU3020AFD000XXX Molded Case Circuit Breaker
- 20A
- 3 Pole
- Unit Mount
ABB
XT1NU3020AFD000XXX
Molded Case Circuit Breaker
Brand
ABB
SKU
XT1NU3020AFD000XXX
Quantity
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ABB XT1NU3020AFD000XXX - 20A 3 Pole Molded Case Circuit Breaker
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Description
The XT1NU3020AFD000XXX is a 20A, 3-pole molded case circuit breaker from ABB's SACE Tmax XT1N series, built for commercial and industrial power distribution. This unit-mount breaker installs into ABB ReliaGear neXT panelboards and SB switchboards. It serves as a direct replacement for legacy T1N020TW breakers. Rated 25kAIC at 480VAC, it utilizes a fixed thermal-magnetic trip system. The unit includes front line terminals and load side lugs for 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 |
| Terminal Type | Lugs |
|---|---|
| For Use With | ABB ReliaGear neXT Panelboards, ABB ReliaGear SB Switchboards, ABB SACE Tmax XT Enclosures |
| Wire Gauge | 10 AWG - 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 | Auxiliary Switch, Shunt Trip, Undervoltage Release, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs (1SDA075837R1) |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CE, CSA, cULus, IEC, KEMA, RINA, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Double Insulated, Reverse Feed |
Product FAQs
5 answersWhich panelboards are compatible with the XT1NU3020AFD000XXX?
This breaker is designed for unit mount applications within ABB ReliaGear neXT panelboards, ReliaGear SB switchboards, and SACE Tmax XT enclosures. It requires bolted connections rather than a plug-in mounting base.
Are the thermal and magnetic trip settings adjustable on this breaker?
No. The XT1NU3020AFD000XXX features a fixed thermal and fixed magnetic trip unit. Both the long-time (L) and instantaneous (I) protection settings are factory set for 20 amps and cannot be modified in the field.
What wire sizes are accepted by the standard lugs on this XT1 breaker?
The factory lugs accept wire gauges ranging from 10 AWG to 2/0 AWG. Always verify the conductor material and apply the correct torque as specified on the breaker faceplate or ABB instruction sheet.
Can this breaker be used in DC applications?
Yes, the XT1NU3020AFD000XXX is rated for DC systems, providing an interrupting capacity of 35kA at both 250VDC and 500VDC. When wiring for DC, follow ABB guidelines for pole configuration based on your specific system voltage.
Does the SACE Tmax XT series replace older GE molded case circuit breakers?
Yes, following ABB's acquisition of GE Industrial Solutions, the SACE Tmax XT family is the designated upgrade path for legacy GE molded case breakers. You may require specific retrofit kits or mounting hardware when upgrading older enclosures.
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