ABB S203U-K30 Circuit Breaker
- 30
- 3 Pole
- Din Rail
Quantity
ABB S203U-K30 3 Pole Circuit Breaker
New
Quantity
Description
ABB S203U-K30 3 Pole Circuit Breaker
The ABB S203U-K30 is a 3 Pole thermal magnetic molded case circuit breaker with a current rating of 30 Amps and a voltage rating of 240VAC. It has an interrupting rating of 10kAIC at 240V. The S203U-K30 has a din rail mounting type and includes long-time and instantaneous trip functions.
Specifications
Product FAQs
6 answersWhat applications are best suited for the K trip curve on this breaker?
The K trip curve is designed for loads with high inrush currents, such as motors and transformers. It trips between 10 and 14 times the rated current, allowing the breaker to ride through momentary startup surges without nuisance tripping.
Is the S203U-K30 approved for branch circuit protection?
Yes, as part of the ABB S200U series, this breaker is UL 489 listed for branch circuit protection. It can be used as a primary overcurrent protective device in commercial and industrial panels.
What accessories are compatible with the S203U-K30?
This breaker is fully compatible with ABB System pro M compact UL 489 accessories. This includes auxiliary contacts, shunt trips, undervoltage releases, and cuttable busbars.
How does the twin terminal design assist with installation?
The cylinder lift twin terminals allow for the separate feeding of a busbar and a wire conductor in the same lug. This design simplifies cross-wiring and ensures a secure connection for both components.
Does this breaker provide visual confirmation of the contact position?
Yes, it features a Contact Position Indication (CPI) window on the front of the device. A color-coded indicator shows the exact position of the internal contacts, ensuring safe maintenance regardless of the toggle position.
Are the terminals on the S203U-K30 touch-safe?
Yes, the breaker is equipped with IP20-rated finger-safe terminals, which protect installers and maintenance personnel from accidental contact with live electrical connections.
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