Products

ABB S303PB20 Miniature Circuit Breaker 25 kA 3-P 20A 415VAC B-Curve

Product Code: S303PB20

  • 20 A rated current with 25kA breaking capacity
  • Operates at 415 VAC, withstands up to 6 kV impulse
  • IP20/IP40 protection, suitable for various environments
  • Compact design: 52.5 mm width, DIN rail mountable
  • B curve type for efficient circuit protection
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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 B
Degree of Pollution IP3
Degree of Protection IP20/IP40
Depth 69 mm
Dielectric Test Voltage 2 kV
Electrical Durability 20000 Cycles
Height 88 mm
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 Loss 6.9 W
Power Supply Connection Arbitrary
Rated Current 20 A
Rated Frequency 50/60 Hz
Rated Impulse Withstand Voltage 6 kV
Rated Insulation Voltage 500 V
Rated Short Circuit Current 25 kA
Rated Voltage 415 VAC
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 B Curve
Weight 0.372 kg
Width 52.5 mm
Wire Stripping Length 14 mm

Description

<p>If you&amp;#39;re in the market for a reliable Miniature Circuit Breaker (MCB) that meets rigorous industrial and commercial standards, the S300P series offers an impressive set of features tailored to suit your needs. This MCB is designed with precision to ensure safety and efficiency in electrical systems.</p><p>Operating at a rated current of 20 A, this MCB can handle demanding electrical loads while maintaining stability. Its rated voltage stands at 415 VAC, making it suitable for a wide range of applications. The device supports both 50 Hz and 60 Hz frequency operations, providing flexibility across different power systems.</p><p>One of its standout features is the high breaking capacity of 15 kA, ensuring robust performance even under fault conditions. Additionally, it boasts a short circuit capacity of up to 25 kA, offering extra protection against unexpected surges.</p><p>The S300P series MCB is built with durability in mind. It has an electrical durability rating of 20,000 cycles, which ensures long-term reliability. The device also adheres to several international standards including CSA 22.2 No. 235, IEC/EN 60898-1, IEC/EN 60947-2, and UL 1077—providing assurance that it meets global safety requirements.</p><p>This three-pole breaker comes with IP20/IP40 degree of protection ratings depending on installation conditions and offers a degree of pollution level IP3—a testament to its resilience in varied environments. With an ambient temperature operating range from -40&amp;#176;C to +70&amp;#176;C, it&amp;#39;s well-suited for diverse climatic conditions.</p><p>Installation is straightforward due to its DIN rail mounting type and arbitrary power supply connection positions allow for versatile integration into existing setups. The screw clamp terminal type requires a tightening torque of just 2.8 N-m for secure connections while accommodating wire stripping lengths up to 14 mm.</p><p>In terms of dimensions and weight—the MCB measures at a width of 52.5 mm by height at 88 mm by depth at69 mm weighing only0 .372 kg—making it compact yet substantial enough not compromising on quality or strength . Its housing color RAL7039 grey blends seamlessly within most panel designs .</p><p>Designed with practicality ,the S300P series provides efficient thermal management minimizing power losses approximately6 .9 W during operation enhancing overall system efficiency without undue energy wastage .</p><p>Whether you’re upgrading existing infrastructure or setting up new installations ,this curve type B MCB promises dependable performance solidifying itself as integral part any advanced electrical distribution network Manufacturer Part Number not applicable here given context provided above but rest assured product code aligns perfectly ensuring coherence throughout documentation process available resources .</p>

Documents

  • IPD Product Catalogue

    IPD Product Catalogue V17
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