HHD11-D adjustable over/under voltage protection with time delay protection relay with phase lost phase sequence protection multi-function relay
Product Description
HHD11 series Phase sequence protection relay ( brief as protection relay) suitable for the power supply circuit with AC 50Hz, rated voltage 380V, together with AC contactor or other switching device to form as motor control circuit. When the main circuit of the motor is in an abnormal state, disconnect the contact of the switching device in time to disconnect the three-phase power supply of the motor and protect the motor quickly and reliably.
The protection relay adopts voltage sampling mode, which is independent of the power of the motor, and there is no need to set and adjust any current level. The product has the advantages of wide application range, simple and convenient use, stable and reliable performance and so on.
HHD11-D Adjustable over/under voltage protection with adjustable time delay, phase lost phase sequence protection relay
Technical Data
| Working Power |
3-phase 380V 50Hz |
| Protection Functions |
-D: Phase lost, Phase Seq. Adjustable Over/under voltage, adjustable time delay |
| Display mode |
LED indicator |
| Contact Form |
One set NO+NC contact |
| Contact Capacity |
3A AC250V (Resistive) |
| Outline Size |
24.5x85x90mm |
| Mounting Method |
Fixed or 35mm rail mounting |
| Note: HHD11-A suitable for elevator power supply phase sequence protection |
Model Selection
| Model |
Protection Functions |
Indicator Function |
Contact Form |
| HHD11-A |
Phase sequence protection |
Working, Phase seq. indicate |
One set NO, NC contact |
| HHD11-B |
Phase sequence protection ,Phase lost protection, three phase unbalance protection |
Working, Phase lost, phase sequence indicate |
| HHD11-C |
Phase sequence protection Over/Under voltage protection, phase lost protection, three phase unbalance protection |
Working, phase lost, phase sequence, under voltage, over voltage indicate |
| HHD11-D |
Phase sequence protection, Adjustable over/under voltage protection, phase lost protection, three phase unbalance protection |
Working, phase lost/seq, over/under voltage indicate |
Outline size and hole cutting
Product Features
The LED indicator light can clearly indicate the running state of the protection relay, which is intuitive and convenient
Adopt high quality ABS body cover, which is solid and wear-resistant
Tunnel type wiring terminal, more reliable connection
Packing Box
Factory show
Audited Supplier 
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