Phase Failure And Phase Sequence Protection Relay HHD5 Series

Name: Phase Failure And Phase Sequence Protection Relay HHD5 Series
Brand: C-Lin

MOQ : 100

Working power supply: three-phase AC380V 50Hz
Protection function: phase sequence protection
Contact form: one normally open contact
Contact capacity: 3A AC250V (resistive)
Dimensions: 40.5×50.5×73mm
Installation method: with different sockets and accessories, it can be installed in device type, panel type and 35mm guide rail

Working power supply: three-phase AC380V 50Hz
Protection function: -C: phase failure, phase sequence
-E: phase failure, phase sequence, voltage imbalance
Contact form: one normally open, one normally closed contact
Contact capacity: 3A AC250V (resistive)
Dimensions: 45×82×106mm
Installation method: device type or 35mm guide rail type
Alternative products: XJ2, XJ3-G, XJ5

Working power supply: three-phase AC380V 50Hz
Protection function: overvoltage, undervoltage, phase failure, phase sequence, voltage imbalance
Display mode: LED indicates working status
Contact form: a set of normally open and normally closed contacts
Contact capacity: 3A AC250V (resistive)
Dimensions: 50×88×70mm
Installation method: device type or 35mm rail type
Alternative products: XJ11, ABJ1-18

Working power supply: AC220V 50Hz
Protection function: overvoltage, undervoltage protection
Display mode: LED indicates working status
Wiring mode: top in and bottom out, bottom in and top out (to be specified)
Contact form: voltage output
Contact capacity: 32A, 40A, 60A three specifications
Dimensions: 36×80×65.5mm
Installation method: 35mm rail type

Working power supply: three-phase four-wire AC380V 50Hz
Protection function: overvoltage, undervoltage protection
Display mode: LED displays working status
Wiring mode: top in and bottom out, bottom in and top out (to be specified)
Contact form: voltage output
Contact capacity: 60A, 80A, 100A
Dimensions: 73×91.5×66mm
Installation method: 35mm rail type

HHD5-A

Model	HHD5-A (APR-3)
Supply voltage	Three-phase AC380V 50Hz
Protection function	Phase sequence protection
Contact form	1 set of NO and NC contacts
Contact capacity	3A AC250V(resistive)
Dimension	40.5×50.5×73mm
Installation method	Screw mounting type or 35mm DIN rail type

HHD5-C

Model	HHD5-C (XJ2)
Supply voltage	Three-phase AC380V 50Hz
Protection function	Phase failure, phase sequence
Contact form	1 NO and 1 NC contact
Contact capacity	3A AC250V(resistive)
Dimension	45×82×106mm
Installation method	Screw mounting type or 35mm DIN rail type

HHD5-G

Model	HHD5-G (XJ11)
Supply voltage	Three-phase AC380V 50Hz
Protection function	Overvoltage, undervoltage, phase failure, phasesequence, voltage imbalance
Contact form	1 set of NO and NC contacts
Contact capacity	3A AC250V(resistive)
Dimension	50×87.5×70mm
Installation method	Screw mounting type or 35mm DIN rail type

HHD5-II

HHD5-II series
Model	HHD5-II 40A	HHD5-II 60A	HHD5-II 3P+N 60A	HHD5-II 3P+N 80A	HHD5-II 3P+N 100A
Supply voltage	AC220V 50Hz		3-phase 4-wire AC380V 50Hz
Protection function	Overvoltage and undervoltage protection
Display mode	LED indicates work status
Wiring method	Upper inlet lower outlet, lower inlet upper outlet (please specify)
Contact form	Voltage output
Contact capacity	40A	60A	60A	80A	100A
Dimension	36×80×65.5mm		73×91.5×66mm
Installation method	35mm DIN rail type

HHD5-II 3P+N

Model	HHD5-II 3P+N 60A	HHD5-II 3P+N 80A	HHD5-II 3P+N 100A
Supply voltage	3-phase 4-wire AC380V 50Hz
Protection function	Overvoltage and undervoltage protection
Display mode	LED indicates work status
Wiring method	Upper inlet lower outlet, lower inlet upper outlet (please specify)
Contact form	Voltage output
Contact capacity	60A	80A	100A
Dimension	73×91.5×66mm
Installation method	35mm DIN rail type

FAQs

Q1:Why is phase sequence protection important?

A1: Phase sequence protection is important because incorrect phase order can cause motors to run in reverse, leading to equipment damage, reduced efficiency, or safety risks.

Q2:What happens when phase failure occurs?

A2: When phase failure occurs, motors may overheat, lose torque, vibrate excessively, or stop operating, which can result in serious equipment damage.

Q3:What industries commonly use phase protection relays?

A3: Phase protection relays are commonly used in industrial automation, motor control systems, elevators, HVAC systems, pumps, and manufacturing equipment.

Q4:How to troubleshoot phase protection relays?

A4: Check the three-phase power supply, verify correct wiring, inspect contact output status, ensure the relay is powered at AC380V 50Hz, and confirm proper installation.