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2CDS383103R0577 ABB S303P-K50NA Miniature Circuit Breaker - 3+NP - K - 50 A
MPN: 2CDS383103R0577
Alt. SKU: S303P-K50NA
Special Price
£162.82
£135.68
Regular Price
£296.03
This product replaces this item:
Why Choose the S303P-K50NA [2CDS383103R0577]
The MCBs S300P series assures protection in industrial installations against overload and short circuits. This product is manufactured according to international IEC and UL standards, for the markets where it is required.
Technical Specification
- Function: Protection against overload and short circuits in industrial installations.
- Voltage Rating: Up to 480Y/277 V AC; max operating voltage UL/CSA: 125 V DC.
- Current Rating: Rated ultimate short-circuit breaking capacity up to 25 kA.
- Contact Configuration: 3-pole plus neutral (3P+N).
- Insulation & Dielectric Strength: Rated dielectric test voltage 2 kV, 50/60 Hz for 1 minute; Actuator insulation group II.
- Terminal Type & Size Range: Screw terminals; connection capacity flexible 0.75–25 mm², rigid 0.75–35 mm², busbar 10/10 mm².
- Mechanical Endurance: 20,000 cycles; Electrical endurance: 10,000 AC cycles.
- Contact Position Indication: Red (ON) / Green (OFF).
- Tightening Torque: 2.8 N·m (standard); 18 in·lb (UL/CSA).
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"Specified by UK panel builders for dependable control." Controls Engineer, UK
Frequently Asked Questions
What is the primary function of the MCBs S300P series?
The MCBs S300P series provides protection against overload and short circuits in industrial installations.
What is the maximum voltage rating for the MCBs S300P series?
The maximum voltage rating is up to 480Y/277 V AC and 125 V DC for UL/CSA.
What is the current rating and breaking capacity of the MCBs S300P?
The rated ultimate short-circuit breaking capacity is up to 25 kA.
What type of terminals does the MCBs S300P series use?
The MCBs S300P series features screw terminals with a connection capacity of 0.75–25 mm² for flexible and 0.75–35 mm² for rigid cables.
What is the mechanical and electrical endurance of the MCBs S300P?
The mechanical endurance is 20,000 cycles, while the electrical endurance is 10,000 AC cycles.
How is the contact position indicated on the MCBs S300P?
The contact position is indicated by a red (ON) and green (OFF) display.
What tightening torque is required for the MCBs S300P terminals?
The standard tightening torque is 2.8 N·m or 18 in·lb for UL/CSA.
| Manufacturer Part Number | 2CDS383103R0577 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 4016779135597 |
| HS Code | 85362010 |
| Country of Manufacture | Germany |
| Manufacturer | ABB |
| Number of Poles | 3 Pole + N |
| Amperage | 50A |
| Alternative Product SKU | S303P-K50NA |
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