Products

ABB S303PC3 Miniature Circuit Breaker 25 kA 3-P 3A C-Curve

Product Code: S303PC3

  • 3-pole MCB with 3 A rated current
  • High breaking capacity of 25kA
  • Screw clamp terminals for secure connections
  • Compatible with DIN rail mounting systems
  • Operates in temperatures from -40 to 70°C
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Specifications

Product Type Miniature Circuit Breaker
Brand ABB
Series S300P
Actuator Material Insulation Group II, Black, Sealable
Ambient Temperature -40 to 70 deg C Operation
Curve Type C
Degree of Pollution IP3
Degree of Protection IP20/IP40
Housing Colour RAL 7039 Grey
Housing Material Insulation Group I, RAL 7039
Mounting Position Any
Mounting Type DIN Rail
Number of Poles 3
Overvoltage Category IV
Power Supply Connection Arbitrary
Rated Current 3 A
Rated Frequency 50/60 Hz
Rated Short Circuit Current 25 kA
Standards and Approvals CSA 22.2 No. 235, IEC/EN 60898-1, IEC/EN 60947-2, UL 1077
Terminal Type Screw Clamp
Tightening Torque 2.8 N-m
Trip Curve C Curve
Wire Stripping Length 14 mm

Description

<p>When selecting an MCB (Miniature Circuit Breaker) for your industrial or commercial application, understanding the technical specifications is key to ensuring compatibility and reliability. The S300P series MCB offers a robust solution with its well-rounded features tailored for demanding environments.</p><p>This 3-pole circuit breaker has a rated current of 3 A, making it suitable for various low-current applications. It boasts a breaking capacity of 15 kA, providing sufficient protection against short circuits and overloads in most settings. The device&amp;#39;s curve type C ensures moderate trip characteristics, ideal for protecting equipment with inductive loads like motors or transformers.</p><p>The S300P series adheres to several international standards such as CSA 22.2 No. 235, IEC/EN 60898-1, IEC/EN 60947-2, and UL 1077, attesting to its quality and safety compliance across different regions including Australia.</p><p>Installation flexibility is another highlight of this MCB. Designed for DIN rail mounting, it can be positioned in any orientation without affecting performance—an advantage when space constraints are present. Its screw clamp terminal type requires a tightening torque of 2.8 N-m during installation to ensure secure connections.</p><p>With an IP20/IP40 degree of protection rating depending on installation conditions, this circuit breaker provides adequate defense against dust ingress while maintaining operational integrity in indoor environments.</p><p>The ambient operating temperature range extends from -40&amp;#176;C to +70&amp;#176;C which ensures reliable performance even under extreme weather conditions typical in some Australian regions. Additionally, the arbitrary power supply connection allows greater versatility during setup.</p><p>For ease of use during installation or maintenance tasks, the wire stripping length is set at a convenient 14 mm. The housing color in RAL 7039 grey not only gives it a professional appearance but also helps blend seamlessly into existing electrical panels or enclosures.</p><p>In summary, if you&amp;#39;re looking for an MCB that combines durability with flexibility while meeting stringent safety standards—the S300P series could be just what you need for your next project.</p>

Documents

  • IPD Product Catalogue

    IPD Product Catalogue V17
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