Our Bulletin 813S Voltage Monitoring Relays offer state-of-the-art supplementary protective functions that you can easily add and apply to your motor control circuits.
- Phase loss
- Under- and over-voltage
- Phase imbalance
- Phase reversal
- Voltage quality of incoming power line
Typical applications for Bulletin 813S Phase Monitoring Relays include:
- cULus Listed — File No. E14840; Guide Nos. NKCR, NKCR7
Certifications apply when product is marked. See our Product Certification site for Declarations of Conformity, certificates and other certification details.