HB3L-400 Intelligent three-phase residual current operated circuit breaker (Automatic reclosing type - LED type)

Overview

Product scope of application:

The automatic reclosing intelligent three-phase residual current action circuit breaker integrates traditional circuit breakers (fuses), contactors, overload (or overvoltage, leakage, etc.) protection relays, starters, isolators and other main functions. It has remote automatic control and local direct control functions, panel display and signal alarm functions, overvoltage protection, undervoltage protection, overcurrent protection, leakage protection and other functions. It has the advantages of small size, high reliability, strong short-circuit breaking ability, and short arcing distance.

Suitable for low-voltage power grids with three-phase four wire neutral point direct grounding (TT grounding system). Used to provide indirect contact protection against the risk of electric shock to individuals, as well as to protect against grounding faults, overcurrent, short circuits, and other electrical faults in circuits or usage.

Product Features

• Power parameter measurement function: Real time measurement of voltage, current, and leakage current data of power supply lines.

• Multi functional protection function: It has multiple protections such as leakage, overvoltage, undervoltage, overcurrent, short circuit, etc.

• Remote monitoring function: With RS485 communication interface, it can achieve remote control and intelligent centralized management.

• Fault inquiry function: manual inquiry/software inquiry of the last 10 fault phenomena.

• Event recording function: Record the cumulative number of failures; The last 10 fault phenomena and fault values.

• Automatic reclosing: After recovering from leakage, overvoltage, and undervoltage faults, it can automatically reclose.

Technical Specifications

Rated working voltage: AC 3 × 220/380V 50Hz

Rated working current Ie: can be set arbitrarily within the allowable range shown in the table below

Basic functions

• Leakage protection function

• Overcurrent protection function

• 短路保护功能

• Undervoltage detection and fault handling

• Phase interruption/loss, undervoltage, overvoltage protection