Thermal Overload Relay
Thermal overload relays provide reliable motor protection against overheating and phase loss. These relays feature adjustable current settings, test buttons, and visual trip indicators.
Technical Specifications
Product Overview
Professional Motor Protection
The HRD series thermal overload relay is engineered for reliable over-current protection in AC motor circuits. Featuring a robust differential mechanism and integrated temperature compensation, it ensures consistent operation across varying environments. Designed for compatibility with HLD series contactors, this relay is an essential component for safeguarding industrial motors against overloads and phase loss.
Electrical Ratings
- Rated Voltage
- 660 V
- Maximum Rated Current
- 93 A
- Operating Frequency
- 50Hz60Hz
Standards and Compliance
Conforming Standards
IEC60947-4-1
Technical Features
Integrated Protection Mechanisms
- Over-current protection
- Three-phase balance protection
- Phase-losing protection
- Temperature compensation
Control Interfaces
- Normally Open (NO) auxiliary contact
- Normally Closed (NC) auxiliary contact
- Test button
- Reset button
