ABB 3BHL000385P0101 5SHX0845F0001 Module

Description

The residual current releases are associated with the circuit-breaker in order to obtain two main functions in a single device: - protection against overloads and short-circuits; - protection against indirect contacts (presence of voltage on exposed conductive parts due to loss of insulation). Besides, they can guarantee an additional protection against the risk of fire deriving from the evolution of small fault or leakage currents which are not detected by the standard protections against overload. Residual current devices having a rated residual current not exceeding 30 mA are also used as a means for additional protection against direct contact in case of failure of the relevant protective means. Their logic is based on the detection of the vectorial sum of the line currents through an internal or external toroid. This sum is zero under service conditions or equal to the earth fault current (I∆) in case of earth fault. One of the main characteristics of a residual current release is its minimum rated residual current I∆n . This represents the sensitivity of the release. According to their sensitivity to the fault current, the residual current circuitbreakers are classified as: - type AC: a residual current device for which tripping is ensured in case of residual sinusoidal alternating current, in the absence of a dc component whether suddenly applied or slowly rising; - type A: a residual current device for which tripping is ensured for residual sinusoidal alternating currents in the presence of specified residual pulsating direct currents, whether suddenly applied or slowly rising. - type B residual current device for which tripping is ensured for residual sinusoidal alternating currents in presence of specified residual pulsanting direct currents whether suddenly applied or slowy rising, for residual directs may result from rectifying circuits. 

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Service

Warranty: 12 months.

Lead time: 1-3 working days.

Type of payment:T/T and Western Union.

Courier partners: DHL, UPS, TNT, FedEx .

Technical specification, manuals and data sheets: Available on request.