1. Altitude: no more than 2000m;
2. Ambient temperature: -50°C~+40°C, the average value of 24h does not exceed 35°C;
3. Relative humidity: no more than 50% when the highest temperature is +40°C, the maximum The relative humidity is 90% (20°C). Special measures must be taken for condensation on the product due to temperature changes;
4. Pollution level: Level 3;

In addition to overload protection and phase loss protection, this relay also has the following structural features: 1. Temperature compensation structure;
2. Action flexibility check;
3. Convertible manual reset or automatic reset device;
4. Manual disconnection A device with normally closed contacts.

1. In the case of unbalanced three-phase leakage, electric shock and electric leakage can
operate reliably; 2. It can be put into operation normally under the condition of low insulation level of the line and large leakage current;
3. Strong anti-interference, lightning and power grid harmony Under interference conditions such as wave, line transient overvoltage, etc., no malfunction;
4. No action when line leakage is suddenly reduced, which reduces unnecessary power outages and has a higher commissioning rate;

Rated frequency: 50Hz
Rated residual operating current: 50/75/100/150/200/300/500/800/1000mA,
rated residual non-operating current 0.5I△n: Abrupt leakage action value: ≤50mA Single product only uses four For each gear, please refer to the value on the nameplate.
Rated breaking time: <0.2s/<0.5s can be set to automatically reclose once from 20s to 60s

Delayed reclosing time: 70% of rated voltage,
undervoltage action value: 120% of rated voltage (can be closed)
, overvoltage action value: action when any phase of ABC three-phase is missing (can be closed);
phase failure protection: functional module The power supply is directly taken from the three-phase power supply of the autonomous loop, which completely avoids the problem of phase loss and residual current protection not working.

Note*: The neutral pole (N pole) of the four-level product is divided into four types of
A-type N-pole, no overcurrent tripping element is installed, and the N-pole is always on, not combined with other three-level;
B-type N-pole No overcurrent trip element is installed, and the N pole is combined with other three levels (N pole is closed first and then opened);
C-type N pole is installed with overcurrent trip element, and the N pole is combined with other three levels (N The pole is closed first and then opened);
D-type N pole is installed with an overcurrent trip element, and the N pole is always on, and does not open and close together with other three levels;

1. The upper limit of ambient air temperature is +40℃, the lower limit is -5℃, and the average value of 24h does not exceed +35℃.
2. Altitude: The altitude of the installation site does not exceed 2000m.
3. Relative humidity: the relative humidity of the atmosphere does not exceed 50% when the ambient air temperature is +40℃, and it can have a higher relative humidity at a lower temperature; the monthly average maximum relative humidity of the wettest month is 90%, and the The monthly average minimum temperature of the month is +25°C, taking into account the condensation on the surface of the product due to temperature changes.
4. Pollution degree: Pollution degree is 3

1. Ambient temperature: ambient air temperature is -5°C-+40°C (special order must be negotiated with the manufacturer);
2. Altitude: The altitude of the installation site is 2000mm;
3. Pollution degree: Pollution degree is 3;
4. Installation position: it should be installed vertically, with an inclination not exceeding 5°;

1. Altitude: no more than 2000m;
2. Ambient temperature: -5°C~+40°C, the average value of 24h does not exceed 35°C. If it exceeds this range, please consult with the manufacturer;
3. Relative humidity: no more than 50% when the maximum temperature is +40℃, and the maximum relative humidity is 90% (20℃). Special measures must be taken for condensation on the product due to temperature changes;
4. Pollution level: Level 2;

Control device: built-in controller
Product structure: small size, large current, simple structure, ATS-integrated features: fast switching speed, low failure rate, convenient maintenance, reliable performance Wiring mode: front-board wiring
conversion mode: grid to grid, grid For generators, self-turning and self-recovering
products: 20, 25, 32, 40, 50, 63, 80, 160, 250, 400, 630, 800, 1250, 1600, 2500, 3200

Control device: LCD controller
Product structure: small size, large flow, simple structure, ATS-integrated
features: fast switching speed, low failure rate, easy maintenance, reliable performance (with automatic switching time adjustable 1s-99s) ：Front-board wiring
conversion mode: grid to grid, grid to generator, self-turning and self-recovering, self-turning and not self-recovering, each other is a standby product. Poles: 2, 3, 4

1. The ambient air temperature is -5°C~+40°C, and the 24-hour average value does not exceed +35°C;
2. The relative humidity does not exceed 50% when the highest temperature is +40°C, and higher relative humidity is allowed at lower temperatures For example, it is 90% at +20℃, but it should be taken into account that condensation may occur due to temperature changes;
3. The altitude of the installation site should not exceed 2000m;
4. The category is Category IV, and the inclination should not exceed ±23°;