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ABB XT1NU3030AFF000XXX Molded Case Circuit Breaker
- 30A
- 3 Pole
- Unit Mount
ABB
XT1NU3030AFF000XXX
Molded Case Circuit Breaker
Brand
ABB
SKU
XT1NU3030AFF000XXX
Quantity
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ABB XT1NU3030AFF000XXX - 30A 3 Pole Molded Case Circuit Breaker
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Description
Designed for commercial power systems, the ABB XT1NU3030AFF000XXX provides 30A of reliable overcurrent defense. This 3-pole MCCB belongs to the XT1 frame group, utilizing a fixed thermal-magnetic trip unit for consistent performance. It mounts into ABB SACE Tmax XT panelboards and serves as an exact drop-in replacement for the legacy T1N030TW breaker. Delivering a 50kAIC rating at 240V and 25kAIC at 480V, this double-insulated breaker features front terminals and a reverse-feed capable design.Specifications
| Brand | ABB |
|---|---|
| Series | XT1 |
| Amperage | 30A |
| 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 SACE Tmax XT Panelboards, Switchboards |
| Wire Gauge | 10-2/0 AWG , Cu/Al |
| 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, Motor Operator, Rotary Handle, 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, Reverse Feed, Double Insulated |
Product FAQs
9 answersWhat does the "N" in the XT1NU3030AFF000XXX catalog number signify?
The "N" designates the normal interrupting capacity tier for the XT1 frame, which provides a 25kAIC rating at 480VAC.
What does the "AFF000XXX" suffix mean on this ABB circuit breaker?
The "AFF000XXX" suffix indicates that the breaker is configured with standard front terminals and does not include any factory-installed internal accessories, such as shunt trips or auxiliary contacts.
Does the XT1NU3030AFF000XXX replace any legacy ABB circuit breakers?
Yes, the Tmax XT1 series is the direct replacement for the legacy ABB SACE Tmax T1 series. This specific model serves as a drop-in replacement for the legacy T1N030TW breaker.
Can the ABB XT1NU3030AFF000XXX be reverse fed?
Yes, this XT1 frame circuit breaker features reverse feed capabilities. Power can be supplied from either the top or bottom terminals up to its maximum voltage rating.
What are the physical dimensions of the XT1 3-pole frame?
The fixed 3-pole XT1 frame measures approximately 5.12 inches high, 3.00 inches wide, and 2.75 inches deep (130 mm x 76.2 mm x 70 mm).
What is the magnetic trip threshold for this 30A breaker?
This breaker is equipped with a fixed thermal-magnetic (TMF) trip unit. While the thermal overload is fixed at 30A, the instantaneous magnetic short-circuit trip threshold is fixed at 500A.
Can this 3-pole XT1 breaker be used in single-phase applications?
Yes, ABB XT1 three-pole circuit breakers are suitable for single-phase applications up to 347VAC when wired according to the manufacturer guidelines.
What field-installable accessories are compatible with the XT1NU3030AFF000XXX?
The XT1 frame accepts a variety of field-installable internal and external accessories. These include auxiliary contacts, shunt trips, undervoltage releases, and operating mechanisms like direct or extended rotary handles.
What is the operating temperature range for the XT1NU3030AFF000XXX?
This Tmax XT circuit breaker is designed to operate in ambient air temperatures ranging from -25 degrees C to +70 degrees C (-13 degrees F to 158 degrees F). The reference temperature for the thermal trip unit calibration is +40 degrees C.
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