Over/Under Voltage, Phase Failure, Unbalance and Phase Sequence Control Relays

• Customization: Available
• Transport Package: Standard Exporting Carton
• Specification: 76*50*70mm
• Model NO.: HHD10
• Trademark: RADIN
• Origin: Yueqing, Cn
• HS Code: 8536490000
• Production Capacity: 50, 000PCS/Month

Product Description

Over/Under voltage, phase failure, unbalance and phase sequence protection relays






Application

HHD10 series phase failure and phase sequence protection relay (hereinafter abbr. protection relay) is apply for AC 50Hz, 380V motor control circuitry which compose of AC contactor and other switching devices. When the motor's main circuit is on abnormal state, eg. out of phase, phase failure, voltage imbalance, etc. the protection relay will disconnect the switch contact and motor's three-phase power supply, so as to protection of the motor timely.
 
Regardless of motor power, protection relay adopts sampling voltage, no need of ampere rating adjustment. This model is characterized by it's range of applications, easy operation and reliable performance.
 
This series subject to Q / ZXL 0027, GB 14048.5 standard.

Main Technical Data

1, Working power: Three-phase 380V 50Hz, (85% to 110%) Ue fluctuations allowed.
2, Open-phase protection: Protection relay adopts sampling voltage (R, S, T front part ) and action when it detects any phase failure.
3, Phase sequence protection: When protection relay phase sequence is confirmed, if any phase line is exchanged, the motor will not start.
4, Voltage imbalance protection: for three-phase power supply, when any two-phase voltage imbalance comes to 50V ~ 75V, protection relay will act and protect the motor.
5, HHD10-C overvoltage protection: 445V ~ 465V not adjustable, delay 3s ~ 5s not adjustable; HHD10-D over-voltage protection: 400V ~ 460V (panel adjustable), delay 0.5s ~ 5s (panel adjustable) The
6, HHD10-C undervoltage protection: 290V ~ 310V is not adjustable, action delay time 3s ~ 5s not adjustable, HHD10-D over-voltage protection; 300V ~ 360V (adjustable at panel), action delay time 1s ~ 10s (adjustable at panel).
7, Open-phase protection action time 3s ~ 5s.
8, Phase sequence protection action time ≤ 0.2s.
9, Contact capacity: 3A AC250V (resistive).
10, Electrical life: 1×10⁵ times.
11, Ambient temperature: -5 ºC ~ 40 ºC.
12, Alititude: ≤ 2000m.
13, Humidity: When the installation site's max. temperature is 40 ºC, the relative humidity ≤ 50%, it can allow a higher relative humidity at lower temperatures. eg. 20 ºC up to 90%. Special measures should be taken for occasional condensation due to temperature changes.
14, Installation: direct install, by DIN-rail.