Scope of Application
• HUM17NL-63 Residual Current operated Circuit-Breakers are suitable for AC 50Hz circuits with rated voltage 230V and rated currents up to 63A. They provide protection against electric shock, overcurrent for building circuits/equipment, and fire hazards caused by ground fault currents from insulation failures.
• Complies with
GB/T 16917.1.
Structural Features
• Operating Principle: When leakage current IΔn reaches the preset threshold, the device instantly trips to cut power, offering leakage/shock protection while simultaneously safeguarding against circuit overloads and short circuits.
• Characteristics:
a) Integrated 1P+N design, 36mm width, compact size.
b) Optimized structure: 63A rated current, 6,000A short-circuit breaking capacity.
c) N-pole switching capability for enhanced reliability.
d) Contact position indicator and earth fault indicator windows.
e) Supports accessories:
shunt releases,
shunt release with auxiliary,
over-voltage/under-voltage protection, enabling smart applications.
Operating Conditions
• Ambient temperature: -5℃ to 40℃ (Extended range: -40℃ to 70℃)
• Altitude: ≤2,000m
• Relative humidity:
• ≤50% at +40℃; higher humidity permitted at lower temperatures.
• Maximum monthly average relative humidity ≤90% (monthly average temperature ≤ +25℃) with anti-condensation measures.
• Pollution degree: Level 2
• Installation category: II, III
• Mounting: TH35-7.5 standard rails
• External magnetic fields: ≤5 times Earth's magnetic field
• Orientation: Vertical installation (handle upward for ON position)
• Environment: No significant shock/vibration