Motor Protector HHD1 Series

MOQ : 40

The C-LIN Motor Protection Relay is a high-precision 3-phase motor protector (1A-80A) designed for AC220V/380V systems. It provides comprehensive overload protection, phase failure detection, and three-phase imbalance monitoring with an integrated LED digital display for real-time current and fault memory. Featuring an adjustable trip level (2-40) and 2.0-level accuracy, this industrial relay ensures reliable motor safety via static potentiometer settings and flexible reset modes.

Compact and versatile, the unit supports both DIN rail and surface mounting (125×71×120mm). It features a 3A NO/NC contact and offers optional 4-20mA analog output or grounding protection (via zero-sequence transformer). This motor protector is the ideal choice for enhancing automation efficiency and equipment durability in demanding industrial environments.

HHD1-1A

Working power supply: AC220V, AC380V 50Hz
Current range: -1A:1~5A -1:4~20A -1B:16~80A
Protection function: phase failure, three-phase imbalance, overload, stall, start-up avoidance
Display mode: LED digital tube displays the maximum phase current and memory fault status
Display accuracy: 2.0 level
Setting mode: static quantitative setting of potentiometer
Reset mode: panel reset or power-off reset
Trip level: 2, 5…40 continuously adjustable
Contact form: a group of normally open and normally closed conversion contacts
Contact capacity: 3A AC380V (resistive)
Dimensions: 125×71×120mm
Installation method: compatible with device type and guide rail type
Optional function: grounding (code J requires a special zero-sequence transformer) or 4-20mA transmission output (code B)

Model	HHD1-1A
Supply voltage	AC220V, AC380V 50Hz
Current range	1~5A
Protection function	Phase failure, three-phase imbalance, overload locked rotor, startup avoidance
Display mode	LED displays max. phase current and memory fault status
Display accuracy	Class 2.0
Setting mode	Static quantization setting of potentiometer
Reset mode	Panel reset or power-off reset
Release level	2, 5……40 continuously adjustable
Contact form	1 set of NO and NC transfer contacts
Contact capacity	3A AC380V(resistive)
Dimension	125×71×120mm
Installation method	Compatible with both installation and DIN rail type

HHD1-2

Working power supply: AC220V, AC380V 50Hz
Current range: -2:20~100A -3:40~200A -3A:60~300A
Protection function: phase failure, three-phase imbalance, overload, stall, start-up avoidance
Display mode: LED digital tube display of large phase current and memory fault status
Display accuracy: 2.0 level
Setting method: potentiometer static quantitative setting
Reset method: panel reset or power-off reset
Tripping level: 2, 5…40 continuously adjustable
Contact form: one group of normally open and one group of normally closed independent contacts
Contact capacity: 3A AC380V (resistive)
Dimensions: 154×65×157mm
Installation method: device type

Model	HHD1-2
Supply voltage	AC220V, AC380V 50Hz
Current range	20~100A
Protection function	Phase failure, three-phase imbalance, overload locked rotor, startup avoidance
Display mode	LED displays max. phase current and memory fault status
Display accuracy	Class 2.0
Setting mode	Static quantization setting of potentiometer
Reset mode	Panel reset or power-off reset
Release level	2, 5……40 continuously adjustable
Contact form	1 set of NO and 1 set of NC independent contacts
Contact capacity	3A AC380V(resistive)
Dimension	154×65×157mm
Installation method	Installation type