Miniature Circuit Breaker HiSmart NV821419 1P 10A Class C

Miniature Circuit Breaker HiSmart NV821419 is a single-pole (1P) device rated at 10 A with a Class C trip curve. It provides thermal-magnetic protection against overloads and short circuits for residential and light-commercial electrical circuits. The breaker is DIN-rail mountable (35 mm) and accepts top and bottom connections for cables or pin-type busbars; it also features clear contact position indication for quick visual checks.

Advantages

This HiSmart 1P 10A Class C breaker combines overload and short-circuit protection with a compact form factor (85.5 x 78.8 x 18 mm). It includes an anti-mistake contact terminal block, flame-retardant and high-temperature resistant materials, and offers both mechanical durability (20,000 operations) and electrical life (8,000 operations). Rated breaking capacity is 6 kA and it meets IEC 60898-1 / EN 60898-1 standards.

Suitable for

• Protecting lighting circuits
• Protecting socket outlets and small appliances
• Residential distribution boards and small commercial panels

Key specifications

• Number of poles: 1
• Rated current: 10 A
• Trip class: C
• Rated voltage: AC 230/400 V
• Insulation voltage (Ui): 500 V
• Rated frequency: 50/60 Hz
• Rated breaking capacity (Icu): 6000 A
• Rated impulse withstand voltage (Uimp): 6000 V
• Mechanical life: 20,000 cycles
• Electrical life: 8,000 cycles
• Protection degree: IP20
• Terminal connection: cable or pin-type busbar, up to 25 mm² / 18-3 AWG
• Mounting: DIN rail EN 60715 (35 mm) with fast clip
• Operating temperature: -5°C to +40°C (daily average <35°C)
• Storage temperature: -25°C to +70°C
• Dimensions: 85.5 x 78.8 x 18 mm
• Standards: IEC 60898-1 / EN 60898-1

How to use

Install the HiSmart NV821419 on a 35 mm DIN rail and connect incoming and outgoing conductors to the top and bottom terminals respectively, using appropriate cable or pin-type busbar up to the specified cross-section. Ensure the breaker is mounted in an enclosure with adequate ventilation and within the specified operating temperature range. Verify the contact position indicator (red = closed, green = open) after wiring and before energizing the circuit.

Usage recommendations

Use this 1P 10A Class C breaker for circuits with moderate inrush currents such as lighting and general-purpose socket circuits; do not exceed the rated current and observe local wiring regulations and standards. Periodically inspect terminals for tightness and signs of overheating, and replace the device if mechanical or electrical life limits are reached.