ABB XT5SU330ABFN000XXX Molded Case Circuit Breaker
- 300A
- 3 Pole
- Unit Mount
Quantity
ABB XT5SU330ABFN000XXX - 300A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Delivering high-performance protection, this 300A MCCB is built for commercial and industrial power networks. The 3-pole device operates at up to 600VAC or 600VDC, offering versatile application across diverse electrical environments. Designed for unit mounting, it integrates into ReliaGear neXT panelboards, SB switchboards, and Tmax XT enclosures. It acts as a seamless upgrade for older Tmax T5S Series breakers.Specifications
| Brand | ABB |
|---|---|
| Series | XT5 |
| Amperage | 300A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 600VAC, 600VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 50kA @ 480VAC, 25kA @ 600VAC, 50kA @ 250VDC, 35kA @ 500VDC, 25kA @ 600VDC |
| Amperage Range | 210-300A |
|---|
| Terminal Type | Lugs |
|---|---|
| For Use With | ReliaGear neXT Panelboards, ReliaGear SB Switchboards, ABB SACE Tmax XT Enclosures |
| Wire Gauge | (2) 2/0 AWG - 500 kcmil (Cu/Al) |
| Max Wire | 500 kcmil |
| Min Wire | 2/0 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Adjustable Thermal, Adjustable Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Motor Operator, Terminal Shields, Lug Kits |
|---|---|
| Accessories | Lugs not included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CCC, CSA, cULus, IEC, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Reverse Feed |
Product FAQs
5 answersWhich panelboards and switchboards are compatible with the XT5SU330ABFN000XXX?
This XT5 frame breaker is designed for use with ABB ReliaGear neXT Panelboards, ReliaGear SB Switchboards, and ABB SACE Tmax XT Enclosures.
What wire sizes are accepted by the factory-installed lugs?
The included lugs accept 2/0 AWG to 500 kcmil conductors and are rated for both copper (Cu) and aluminum (Al) wiring.
How is the thermal-magnetic trip unit adjusted on this XT5 breaker?
The trip unit features independent dials for both thermal (Long-Time) and magnetic (Instantaneous) protection. This allows installers to fine-tune the overload and short-circuit response to match specific load requirements.
Can this molded case circuit breaker be used in DC systems?
Yes, it is rated for DC applications with an interrupting capacity of 50kA at 250VDC, 35kA at 500VDC, and 25kA at 600VDC.
Does this breaker require a plug-in mounting base for installation?
No, this is a unit-mount configuration. It bolts directly to the mounting surface or enclosure backpan rather than plugging into a specialized base or busbar system.
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