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2CCS864017R0907 ABB S804U-K90 90 A 4-Pole Type K High Performance MCB 50 kA UL 489
ABB S804U-K90 is a 90 A four-pole Type K high-performance miniature circuit breaker with up to 50 kA short-circuit interruption capability and UL 489 compliance for demanding branch-circuit protection applications.
£428.04
Why Choose the ABB S804U-K90 High Performance MCB?
The ABB S804U-K90 is a high-performance 4-pole miniature circuit breaker (MCB) designed to provide reliable overload and short-circuit protection in demanding industrial and commercial electrical systems. As part of the ABB S800U high-performance circuit breaker range, it is designed for applications requiring high interruption capability and UL 489 branch-circuit protection.
Featuring a Type K tripping characteristic, the S804U-K90 is particularly suited to appropriate circuits supplying motors, transformers and other inductive loads that can produce elevated starting currents. Its thermal-magnetic operating principle provides protection against sustained overload conditions while delivering rapid operation during short-circuit faults.
With a rated current of 90 A, four-pole configuration and a short-circuit interruption capability of up to 50 kA, the S804U-K90 delivers high-performance circuit protection for demanding installations. The breaker is designed to UL 489 requirements, and ABB order code 2CCS864017R0907 identifies this specific S800U variant.
Key Advantages
- High-performance 4-pole miniature circuit breaker for demanding electrical installations.
- 90 A rated current for circuit protection and control.
- Type K tripping characteristic suited to appropriate inductive loads and circuits with elevated starting currents.
- High short-circuit interruption capability of up to 50 kA.
- UL 489 circuit breaker design for North American branch-circuit applications.
- Thermal-magnetic protection against overloads and short circuits.
Key Features
- ABB S800U high-performance MCB series.
- 4-pole configuration.
- 90 A rated current.
- Type K tripping characteristic.
- Short-circuit interruption capability of up to 50 kA.
- UL 489 circuit breaker platform.
- Thermal and magnetic tripping mechanisms.
- Designed for dependable overload and short-circuit protection.
High-Performance UL 489 Circuit Protection
The ABB S800U range is designed for demanding branch-circuit protection applications requiring high short-circuit interruption capability. The S804U-K90 combines thermal overload protection with fast magnetic operation under short-circuit conditions, helping protect conductors and connected electrical equipment from damaging fault currents.
Its Type K characteristic makes the breaker suitable for appropriate inductive loads and equipment that can produce elevated starting currents during normal operation. The four-pole arrangement enables coordinated switching and protection across four conductors in compatible electrical systems.
Typical Applications
- Industrial electrical distribution systems.
- Machinery and automation control panels.
- Motor and transformer circuits where a Type K characteristic is appropriate.
- Commercial and industrial switchboards.
- Circuits supplying inductive loads with elevated starting currents.
- North American installations requiring UL 489 branch-circuit protection.
Technical Specifications
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| Certification | UL 489 | |
|---|---|---|
| Series | S800U | |
| ABB order code | 2CCS864017R0907 | |
| Product type | High-performance miniature circuit breaker (MCB) | |
| Number of poles | 4 | |
| Rated current | 90 A | |
| Tripping characteristic | Type K | |
| Short-circuit interruption rating | Up to 50 kA | |
| Trip technology | Thermal-magnetic | |
| Protection functions | Overload and short-circuit protection | |
| Standard | UL 489 |
Frequently Asked Questions
What is the ABB S804U-K90 used for?
The ABB S804U-K90 is used to protect electrical circuits against overloads and short circuits, particularly in demanding applications with inductive loads and elevated starting currents.
What is the rated current of the S804U-K90?
The S804U-K90 has a rated current of 90 A.
How many poles does the ABB S804U-K90 have?
The S804U-K90 is a 4-pole high-performance miniature circuit breaker.
What does the Type K characteristic mean?
The Type K tripping characteristic is suited to appropriate inductive loads and circuits with elevated starting currents, allowing normal equipment start-up while providing overload and short-circuit protection.
Which standard applies to the ABB S804U-K90?
The S804U-K90 is designed as a UL 489 circuit breaker for branch-circuit protection applications.
Trusted ABB Circuit Protection
ABB S800U high-performance circuit breakers provide dependable overload and short-circuit protection for demanding electrical systems, combining high interruption capability with thermal-magnetic protection and UL 489 circuit breaker design.
