Products

ABB S803NC25 High Performance Miniature Circuit Breaker 36kA at 400VAC 3-P 25A 400/690VAC C-Curve

Product Code: S803NC25

  • Rated current of 25 A for reliable performance
  • High breaking capacity of 36 kA at 400 VAC
  • Screw clamp terminals for secure connections
  • Compact design: 81 mm width, fits DIN rail
  • Complies with AS/NZS standards for safety
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Specifications

Product Type High Performance Circuit breaker
Brand ABB
Series S800N
Ambient Temperature -25 to 60 deg C Operation, -40 to 70 deg C Storage
Application Commercial and Industrial
Breaking Capacity 36 kA at 400 VAC
Cable Cross Section 50 sq-mm Top, 50 sq-mm Bottom
Collection S800N
Curve Type C
Degree of Pollution IP3
Degree of Protection IP20
Depth 82.5 mm
Electrical Durability 10000 Cycles
Height 95 mm
Housing Colour RAL 7035 Grey
Housing Material Insulation group I, RAL 7035
Impulse Voltage 8 kV
Mounting Type DIN Rail
Number of Poles 3
Pole Width 27 mm
Power Loss 4.3 W
Rated Current 25 A
Rated Frequency 50/60 Hz
Rated Impulse Withstand Voltage 8 kV
Rated Insulation Voltage 690 V
Rated Short Circuit Current 36 kA
Rated Voltage 400/690 VAC
Short Circuit Capacity 25 kA
Standards and Approvals AS/NZS 60898-1, AS/NZS 60947-2
Terminal Type Screw Clamp
Tightening Torque 3.5 N-m
Trip Curve C Curve
Width 81 mm

Description

<p>The S800N series MCB is designed for commercial and industrial applications, providing reliable circuit protection with precision engineering. This robust miniature circuit breaker (MCB) ensures safety and efficiency in electrical systems.</p><p>With a rated current of 25 A, it efficiently handles electrical loads while maintaining optimal performance. It features a rated impulse withstand voltage of 8 kV and a rated insulation voltage of 690 V, ensuring resilience against voltage spikes and insulation breakdowns. Its wide operating range supports voltages from 400 to 690 VAC.</p><p>Safety and durability are paramount in the S800N series. The device boasts a breaking capacity of 36 kA at 400 VAC, offering superior protection against short circuits. With an IP20 degree of protection, it safeguards against solid objects larger than 12 mm but requires installation within an enclosure for complete protection.</p><p>The MCB&amp;#39;s design includes three poles, making it suitable for three-phase systems. The screw clamp terminal type ensures secure connections with a tightening torque requirement of 3.5 N-m. It accommodates cable cross-sections up to 50 sq-mm both at the top and bottom terminals.</p><p>Dimensions are practical for various installations: width is set at 81 mm, height at 95 mm, and depth at 82.5 mm, with each pole having a width of just 27 mm—ideal for space-constrained environments on DIN rail mounting systems.</p><p>Compliance with AS/NZS standards (60898-1 and 60947-2) underscores its adherence to Australian safety regulations. Its electrical durability spans up to an impressive lifespan of approximately 10,000 cycles under normal conditions.</p><p>Operating efficiently across temperatures ranging from -25&amp;#176;C to +60&amp;#176;C—with storage capabilities down to -40&amp;#176;C—the S800N is versatile enough for diverse environmental conditions found in Australia’s varied climate zones.</p><p>The curve type C characteristic provides balanced tripping times based on overload conditions typical in commercial settings where moderate surges occur frequently without compromising system stability or requiring frequent resets.</p><p>Available in RAL7035 grey housing color—a neutral tone that blends well into most industrial panels—it complements existing setups seamlessly while enhancing operational aesthetics.</p><p>In summary, the S800N series MCB stands as a reliable choice for professionals seeking durable circuit protection solutions that meet stringent technical requirements without compromise on quality or safety standards.</p>

Documents

  • IPD Product Catalogue

    IPD Product Catalogue V17
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