SCHNEIDER S74D-VB0-F0V0 is an electronic Moulded Case Circuit Breaker (MCCB) from Schneider Electric’s S74D series, mainly used for protection against overload, short-circuit, and ground faults in power distribution systems.

Below are the main specifications and parameters of this model:

1. Core Technical Specifications

• Rated Current: 6 A
  (The rated current is 6 amperes, suitable for low-power load circuits.)
• Rated Voltage: 400 V
  (Typically refers to the three-phase rated voltage, commonly used in industrial and commercial power distribution systems.)
• Rated Breaking Capacity: 6 kA
  (Capable of safely interrupting short-circuit currents up to 6 kA, providing strong fault current protection.)
• Number of Poles: 1P (Single-pole)
  (Suitable for single-phase circuits or as part of a multi-pole circuit breaker configuration.)

2. Main Features

• Trip Characteristics:
  This model typically adopts a Type B trip characteristic (note that some sources mention a Type C characteristic, which may indicate model confusion; verification of the exact characteristic is recommended).
  Type B trip characteristics are suitable for loads that are not highly sensitive to inrush current, such as lighting and ventilation systems. The typical tripping current range is 3–5 times the rated current.
• Enclosure Material:
  Features a moulded case enclosure with good mechanical strength and corrosion resistance.
• Compact Design:
  Designed for installation on standard DIN rails, making it convenient for layout within distribution boards or control cabinets.

3. Typical Applications

• Lighting Circuits:
  Provides overload and short-circuit protection for building lighting systems.
• Low-Power Electrical Equipment:
  Suitable for distribution protection of low-power loads such as air conditioners and ventilation fans.
• Control Systems:
  Used to protect low-power circuits in control panels and automation systems.