Product Description

SELCO S6610 Earth Fault Relay

The SELCO S6610 is a microprocessor-based earth fault relay designed for reliable monitoring of earth fault conditions in AC networks, particularly those with an insulated or high impedance earthed neutral. It operates by measuring the residual current (zero sequence current) using an external core balance current transformer (CBCT). The S6610 provides adjustable current setpoints and time delays, offering flexible protection suitable for marine, offshore, and industrial applications where sensitive earth fault detection is critical.

Technical Specifications:

Type: Microprocessor-based Earth Fault Relay
Application: AC networks (Insulated or high impedance earthed neutral)
Measurement Principle: Residual current via Core Balance Current Transformer (CBCT)
Current Setting Range: Typically adjustable (e.g., 0.1 – 10A, specific range depends on model and CBCT)
Time Delay Setting Range: Typically adjustable (e.g., 0.1 – 10s, definite time)
Output Relays: Typically 2 x SPDT changeover contacts (Alarm/Trip)
Auxiliary Supply Voltage: Various options available (e.g., 24 VDC, 110/230 VAC)
Indicators: LEDs for Power On, Alarm, Trip status
Mounting: DIN rail mounting (standard)
Frequency: 50/60 Hz