- Compact Design for Motor Control Centers (MCCs)
The compact form-factor 71.1 mm (2.8 in) X 127.0 mm (5 in) X 152.4 mm (6 in) easily installs in small MCC drawers and buckets. Built-in current transformers save room and reduce installation time.
- Easy-to-Use Web Interface
The web interface makes it easy for electricians and technicians to configure and monitor the SEL-849.
- Easy Integration With Control Systems
Several communications protocol options allow the SEL-849 to be used with old and new control systems. For maximum flexibility, the SEL-849 includes options for internally wetted or externally wetted contact inputs.
- Arc-Flash Hazard Protection
MCCs typically have large fault-current potential, resulting in increased arc-flash hazards. The SEL-849 Relay’s arc-flash detection capability significantly reduces total arc-flash energy.
- Standard Feature Set
+ EIA-232/EIA-485 port
+ Ethernet 10/100-BASE-T port
+ Remote HMI port
+ Three built-in window-type CTs
+ Standard current input, 0.5 to 128 A
+ Built-in arc-flash light sensor
+ Variable-frequency drive (VFD) support
+ Four contact outputs
+ Six optoisolated control inputs
+ Modbus RTU and Modbus TCP protocols
- Rugged Hardware You Can Rely On
All SEL relays are designed to operate in harsh environments where other relays may fail. The SEL-849 operates in extreme conditions, with an operating temperature of –40° to +85°C, and is designed and tested to exceed applicable standards, including vibration, electromagnetic compatibility, and adverse environmental conditions.