ABB Monitoring Relay 1, 3 Phase, SPST Contact, DIN Rail Mount, 400V Switching Voltage 1SVR550882R9500

ABB 1SVR550882R9500 Monitoring Relay is a high-quality device engineered to monitor 1-phase and 3-phase electrical supply voltages with a single pole single throw (SPST) contact configuration. It is designed for DIN rail mounting which facilitates easy installation in control panels and industrial switchgear.

This monitoring relay is primarily used to detect phase failures and ensure electrical system protection by de-energizing the relay upon fault detection. The yellow LED indicator turns off to signal the fault condition clearly to operators and maintenance personnel.

The device incorporates a 5% fixed hysteresis which enhances stability by preventing relay chatter and nuisance tripping. Additionally, it features a fixed 0.5-second OFF delay to smooth transient voltage drops or line variations ensuring reliable operation.

Designed to handle a switching voltage of up to 400V, this relay is suitable for a wide range of industrial, commercial, and electrical automation applications. It uses screw terminals providing secure and durable electrical connections.

The dimensions of the relay are compact measuring 78.5 mm in length, 78 mm in height, and 22.5 mm in width, making it space efficient for panel mounting. Its IP50 and IP20 ratings provide robust protection against dust ingress and enhance safety standards compliance.

This product adheres to rigorous international standards including EN61000-4-2, IEC255-6, EN50022, GL, cULus, GOST, and 93/68/EWG, among others, ensuring high electromagnetic compatibility and operational reliability in demanding industrial environments.

Manufactured in Bulgaria, the ABB 1SVR550882R9500 Monitoring Relay is crafted for users requiring accurate and dependable phase monitoring devices in electrical distribution and automation systems.

The relay effectively detects phase failure and de-energizes on fault. Features a fixed 5% hysteresis for stable operation. Incorporates a 0.5 second fixed OFF delay. Operates reliably in temperatures ranging from -60°C to +60°C.

Switching voltage capacity is 400 volts suitable for industrial applications. Compact dimensions with height 78mm, length 78.5mm, and width 22.5mm. Terminal type is screw for secure electrical connections. IP50 and IP20 rated for dust protection and electrical safety.

Conforms to multiple international standards including EN61000 and IEC norms. Manufactured in Bulgaria ensuring quality and reliability.

Ideal for use in industrial automation, electrical panels, HVAC systems, manufacturing plants, and commercial electrical installations requiring reliable phase failure detection and protective monitoring. Explore more Monitoring Relay options and ABB electrical components on EnvMart.