Selec SPPA2M2,Phase Faliure Relay

SPPA2M2 is an advanced monitoring device that ensures the reliable operation of electrical systems by monitoring key parameters. Designed for 3-phase, 3-wire connections, this unit effectively guards against Phase Loss, Phase Asymmetry, Over Voltage, and Under Voltage conditions.

Operating within an impressive range of 280 to 520V AC (L-L), the SPPA2M2 is versatile and suitable for various applications. Its functional specifications include a Phase Imbalance tolerance of 30V, with a hysteresis of 6V to maintain stability. The Voltage Accuracy, at ±1% of full scale, guarantees precise measurements, while the Time Accuracy of ±5% ±100ms ensures reliable response.

The unit is engineered with safety in mind, featuring a power-on delay of 3 seconds for stable operation during startup. With well-defined trip settings, including Phase Asymmetry, Over Voltage, and Under Voltage, the SPPA2M2 responds promptly to anomalies. The trip and recovery time delays for various conditions provide swift protection (<120ms for phase loss and phase asymmetry, <200ms for over voltage and under voltage).

Equipped with two DPDT (2C/O) relays, each with a contact rating of 5A@250VAC resistive, the SPPA2M2 offers a reliable safeguarding mechanism. Its compact size of 35 x 90 mm and DIN rail mounting make it easy to integrate into existing setups. This device stands as a dependable guardian of electrical systems, providing security and peace of mind in critical applications.