Legrand 402064 4P 63A 30mA 400V RCCB (Residual Current Circuit Breaker)

Legrand 402064 4P 63A 30mA 400V RCCB (Residual Current Circuit Breaker)

The Legrand 402064 4P 63A 30mA 400V RCCB is a residual current protection device designed to instantly disconnect the power supply when a leakage current exceeding 30mA is detected. Featuring a 4-pole configuration suitable for three-phase systems, it operates at a rated current of 63A and a maximum working voltage of 400V.

Key Features

• Rated current 63A: Suitable for high-capacity electrical systems such as air conditioners, water pumps, and industrial equipment.

• Residual current sensitivity 30mA: Provides immediate disconnection when leakage current exceeds 30mA, protecting users from electric shock — especially in damp or high-risk environments.

• 4-pole design (4P): Ensures comprehensive protection for three-phase electrical systems, ideal for large-scale buildings or industrial installations.

• Leakage detection: Enhances user safety by rapidly detecting and cutting off power during current leakage, preventing electric shock and fire hazards.

• Easy installation: DIN rail mounting system allows quick and convenient installation and integration into existing electrical panels.

Technical Specifications

• Product code: 402064

• Type: MCCB-4P

• Rated voltage (Un): 400 V

• Rated current (In): 63 A

• Rated residual current (IΔn): 0.03 A (30 mA)

• Insulation voltage (Ui): 500 V

• Impulse withstand voltage (Uimp): 4 kV

• Number of poles: 4

• Mounting method: DIN rail

• Type of leakage current: AC

• Short-time withstand current (Icw): 10 kA

• Current increment: 0.25 kA

• Voltage type: AC

• Frequency: 50 Hz

• Voltage range: 340–440 V

• Protection rating (IP): IP20

• Module width: 4

• Built-in depth: 44 mm

• Operating temperature: -25°C to +60°C

• Pollution degree: 2

• RAL color (approx.): 7035

• Dimensions (H x W x D): 88.9 x 71.2 x 77.8 mm

• Impact resistance (IK): IK04

• Storage temperature: -40°C to +70°C

• Color: Grey

Contact for Consultation

We specialize in providing high-quality electrical equipment including cables, sockets, supports, electrical enclosures, and complete Legrand solutions for construction and infrastructure projects.

We guarantee genuine Legrand products — directly imported from the manufacturer with full documentation, international-standard warranty, and technical support.

Stay updated with the latest news on our official Fanpage: Legrand