Phase Loss, Phase Failure, Phase Sequence and Over/Under Voltage Control Relay

Open-phase, Phase Sequence and Over/Under Voltage Protection RelayHHD5-F, HHD5-G Overvoltage, Under voltage, phase failure, phase sequence protection relay (hereinafter referred to as the protection relay), Together with AC contactors and other switching devices to form a protective circuit for irreversible three-phase AC motor and transmission equipment Water pump, fan, conveyor belt, air compressor, feeder line) and provide effective protection when there's overvoltage, under voltage, open-phase, phase sequence fault and other failures occur.Protection relays are widely used in industrials, agricultural and service industries' three-phase AC 50Hz, voltage 380V low voltage distribution system.Protection relay using advanced voltage detection technology, the main components adopt imported integrated circuit, with reliable performance, default indication, high anti-interference ability, compact, user friendly installation and other advantages, what's more, it won't be affected by the protected equipment's power.
This protection relay series subject to Q / ZXL 0027 enterprise standard, and comply with the GB 14048.5 requirements.Main Technical Data1, Working Voltage: AC 50Hz, three-phase 300V ~ 460V;
2, Contact Capacity: 3A AC250V (resistive);
3, Protection Function: open-phase protection, phase sequence protection, over/under voltage protection;
4, Status indication:
a) HHD5-F: ON power available LED indicator, UP on work LED indicator;
b) HHD5-G: Fault indicator;
5, Aux. Contact: 1NO + 1NC transfer contact;
6, Over-voltage protection:
a) HHD5-F: 399V ~ 460V adjustable, delay time ≤ 0.2s;
b) HHD5-G: 380V ~ 460V adjustable, 0.5s ~ 5s delay time adjustable;
7,Under voltage protection:
a) HHD5-F: 300V ~ 361V adjustable, delay time ≤ 0.2s;
b) HHD5-G: 300V ~ 380V adjustable, 1s ~ 10s delay time adjustable;
8, phase and phase sequence protection action time ≤ 0.2s;
9, Electrical life: 1x105 times.
10, Ambient temperature: -5 ºC ~ 40 ºC.
11, Alititude: ≤ 2000m.
12, 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.
13, Installation: direct install, by DIN-rail.