EATON HNC-40 Residual Current Switch 40A 4P 30mA AC

The EATON HNC-40 is a high-quality Residual Current Circuit Breaker (RCCB) designed for reliable protection against earth faults. With a rated current of 40A and 4 poles, it ensures safety in residential, commercial, and industrial electrical installations. This device is AC type, sensitive to 30mA residual currents, and complies with EN 61008-1 standards.

Advantages

Robust construction with 20,000 electrical and mechanical cycles ensures long service life. The compact 4-module design saves space on DIN rails. Clear tripping indicator provides immediate visual feedback. Suitable for use with 63A gG fuse for conditional short-circuit current up to 10kA.

Suitable for

• Residential electrical panels
• Commercial building distribution boards
• Industrial control cabinets
• Protection of circuits against earth leakage currents

Key specifications

• Product Type: Residual Current Circuit Breaker (RCCB)
• Number of Poles: 4-Pole (4P)
• Rated Current (In): 40 A
• Rated Residual Operating Current (IΔn): 30 mA
• Residual Current Type: AC Type
• Rated Voltage (Un): 230/400 V AC
• Rated Frequency: 50/60 Hz
• Mounting Type: DIN Rail
• Conditional Short-Circuit Current (Inc): 10 kA (with 63A gG fuse)
• Short-Circuit Withstand Capacity (Icw): 10 kA
• Electrical Endurance: 20,000 cycles
• Mechanical Endurance: 20,000 cycles
• Terminal Capacity (Rigid): 1 to 25 mm²
• Terminal Capacity (Flexible): 1 to 16 mm²
• Degree of Protection: IP20 (terminals), IP40 (device in enclosure)
• Operating Temperature: -25 to +40 °C
• Storage Temperature: -40 to +70 °C
• Standards: EN 61008-1
• Module Width: 4 Modules
• Tripping Indicator: Yes (local indication)

Recommendations

For optimal performance, pair with a suitable upstream overcurrent protection device. Ensure proper installation by a qualified electrician. Regularly test the device using the test button to verify functionality.