LRD series thermal relay is suitable for overload and phase-failure protection of AC motors with frequency of 50/60Hz, voltage up to 690v, current up to 0.16-140A under 8-hours duty or uninterrupted duty.
Several functions provided by these relays are: Phase-failure protection, ON/OFF indication, temperature compensation, and manual/automatic reset.
Applicable Standards
National Standard: GB 14048
International Standard: IEC 60947-4-1
The relays can be mounted onto contactors or installed as single units.