HB3L-225-DHCT Intelligent three-phase residual current operated circuit breaker (Automatic reclosing type - LCD type)

Overview

The automatic reclosing intelligent three-phase residual current operated circuit breaker integrates the main functions of traditional circuit breakers (fuses), contactors, overload (or overvoltage, leakage, etc.) protection relays, starters, isolators, etc. Equipped with remote automatic control and local direct control functions; Equipped with panel display and signal alarm functions; It has functions such as overvoltage protection, undervoltage protection, overcurrent protection, and leakage protection; 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.

• Temperature measurement function: Real time measurement of external temperature sensor data.

• Real time clock function: external hard clock

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

• Remote monitoring function: With dual RS485 communication interfaces, it can achieve remote control and intelligent centralized management. By cooperating with the wireless communication module, bidirectional communication can be achieved with the user's mobile phone through the GSM/GPRS network, as well as with a PC equipped with the GSM/GPRS module, enabling parameter monitoring and remote control.

• SMS notification function: When a fault occurs or a forced closing occurs, the fault type and time of occurrence will be notified to the user's mobile phone via SMS; After the fault is restored, SMS will notify the user that the mobile phone fault has been restored and the recovery time.

• Fault shielding function: It can be set to detect leakage, temperature, phase failure, undervoltage, overvoltage, and overcurrent faults separately.

• Action mode control: The action modes for leakage, temperature, phase failure, undervoltage, overvoltage, and overcurrent faults can be set separately.

• Automatic reclosing function: It can set whether automatic reclosing is allowed after the recovery of leakage, temperature, phase failure, undervoltage, overvoltage, and overcurrent faults.

• 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 symptoms, fault values, and time of occurrence.

• External pull/close control: can be connected with 1 passive control terminal for pulling and 1 passive control terminal for closing; Load control output relay terminals that can be connected to multiple function meters or prepaid meters.

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