CBI 20A 2P 3kA Circuit Breaker C3

• The CBI Electric QA(13) 2-Pole Miniature Circuit Breaker offers high-performance AC circuit protection for two-phase applications within an ultra-compact footprint.
• Leveraging reliable hydraulic-magnetic technology, this MCB ensures precise, temperature-independent tripping across a wide range (-40°C to +85°C).
• Occupying only 26mm (2 x 13mm modules) on a mini rail, it provides simultaneous protection and switching for two live conductors (L1/L2) up to 415 Vac.
• Compliant with standards like IEC/EN 60947-2 and SANS 556-1 (VC 8036), VDE approved, and CE certified, the QA(13) 2-pole breaker is a dependable, space-saving solution for industrial machinery, commercial installations, and specific residential applications requiring two-phase protection.

Features

• Type: AC Circuit Breaker, 2 Pole (2P - Line/Line protection)

• Technology: Hydraulic-Magnetic (Tripping independent of ambient temperature)

• Rating Capability: Maintains 100% current rating across the full temperature range.

• Compact Design: Ultra-compact 26mm width (2 x 13mm modules).

• Mounting: Mini Rail Mount (Black Shell)

• Trip Indication: Linked mid-trip handle position clearly indicates a fault on either pole.

• Immediate Reset: Allows immediate reset after overload clearance.

• Isolation: Suitable for use as a double-pole electrical isolator.

• Ratings: Available in current ratings from 5A up to 50A/60A (Certification dependent, see below).

• Voltage: Rated for 415 Vac operation (Line-to-Line).

• Interrupting Capacity:

  • 2.5 kA @ 415 Vac (VC 8036 / SANS 556-1 - Max 60A)

  • 3 kA @ 415 Vac (IEC/EN 60947-2 / VDE - Max 50A)

• Operating Temperature: -40°C to +85°C.

• Durability: Withstands 5G vibration and 16G shock; High mechanical endurance.

• Safety Compliance: Complies with VC 8036, SANS 556-1, IEC/EN 60947-2. VDE Approved, CE Certified.

• Busbar Friendly: Designed for easy integration with compatible busbar systems.

• Power Indicator: LED for power-on indication.

Benefits

• Reliable Two-Phase Protection: Accurate hydraulic-magnetic tripping protects both phases simultaneously, independent of temperature.

• Space Optimization: Extremely narrow 26mm profile allows for dense panel layouts.

• Enhanced Safety: Provides simultaneous isolation of both live conductors for maintenance.

• Clear Fault Indication: Linked mid-trip handle quickly identifies which breaker has tripped due to an electrical fault.

• Reduced Downtime: Immediate reset capability minimizes circuit interruption after fault resolution.

• Consistent Performance: Precision tripping characteristics ensure reliable protection levels.

• Compliance Assurance: Meets key international and local safety standards for 415V applications.

• Durable & Long-Lasting: Built for reliability in demanding industrial and commercial environments.

Technical Specifications

Ideal Use

• Industrial Machinery: Protecting two phases of a motor control circuit or other 415V equipment.

• Commercial HVAC Systems: Protecting circuits for three-phase components where only two phases need breaking (common in some configurations).

• Split-Phase Systems: Used in specific regions or industrial settings with 2-phase power distribution derived from a 3-phase source.

• Control Panels: Providing compact, reliable protection for 415V control circuits.

• Specific Equipment Feeds: Where double-pole breaking at 415V is required by regulation or design specification.

Tips

• Application Voltage: Confirm this 415 Vac rated breaker is suitable; do not use the 240 Vac rated 1P+N version for line-to-line 415V protection.

• Certification: Verify the required interrupting capacity (2.5kA or 3kA) and current rating against the specific standard needed (SANS or IEC/VDE) for compliance. Max current ratings differ slightly between standards.

• Mounting: Installs on standard Mini Rail. Ensure correct orientation.

• Wiring: Connect Line 1 and Line 2 to the respective poles. Use appropriate wire gauge (0.75-35mm²) and torque terminals to 2.5 Nm.

• Fault Indication: The linked mid-trip handle indicates a fault on either protected phase.

• Temperature Stability: Benefit from consistent protection performance regardless of panel temperature.