RDQH5 series Automatic Transfer Switch (ATS) is applied to Power-system of AC50/60Hz, Rated operate voltage 400V, Rated operate current from 16A up to 630A. Normal, Backup interline of product can connect with Net-grid or one with Net-grid and another with generator power-supply. When one line has faults (phase-loss, overvoltage,undervoltage), ATS switches another circuit into line automatically for keeping the power-supply. It is mainly applied to important places, like high building, mall, bank, hospital, airplane, etc., which not allowed power-off. And ATS has short-circuit, overload protection to ensure the reliability and safety of power-supply.
Standard: IEC/EN 60947-6-1, GB/T 14048.11
RDQH5 | 125 | L | 4P | R | |||||
Model NO. | Frame Size | Breaker Type | Pole | Controller Type | |||||
Automatic Transfer Switch (ATS) |
Code 125 250 400 630 |
L: L type Circuit breaker M: M type Circuit breaker H: H type Circuit breaker |
3P: 3 Pole 4P: 4 Pole |
R: self-throw and self-reset S: self-throw and self not reset T: Mutual Backup |
Note: Grid Net-Generator only has work mode of self-throw and self-reset
Controller Function
Function Set | Set Range | Default |
1 Operation Mode | Auto, Manual | Auto |
2 Grid structure | Grid Net and Grid Net, Grid Net and Generator Power | Grid Net and Grid Net |
3 Work mode | Self throw-Self reset, Self throw-Self not reset, Mutual backup | Self throw-Self reset |
4 Buzzer alarm | ON, OFF | ON |
5 Monitor function | Overvoltage, Undervoltage, phase-loss detection. Set range of Overvoltage threshold 230V~280V, Undervoltage 140V~220VO | vervoltage set 270V,Undervotlage se 170V |
6 Normal turns Backup Time-delay | 1s~255s | 3s |
7 Backup turns Normal Time-delay | 1s~255s | 3s |
8 Both break delay | 0.5s~10s | 3s |
9 Phase sequence detect | ON, OFF | ON |
10 Fire linkage control | AC/DC12V~36V input to Both break | |
11 Voltage calibration | Can take 6 ways Voltage Calibration |
Technical parameter
Frame Size Rated Current Inm(A) | 125 | 250 | 400 | 630 | ||||||||
Rated current Ie(A ) | 16、20、25、32、40 | 100、125、160、180、 | 225、250、315、 | 400、500、630 | ||||||||
50、63、80、100、125 | 200、225、250 | 350、400 | ||||||||||
Pole | 3P、4P | |||||||||||
F requency (Hz) | 50 | |||||||||||
Rated insulation voltage Ui (V ) | AC800 | |||||||||||
Rated impulse withstand voltage Uimp(kV) | 8 | |||||||||||
Rated operate voltage Ue (V ) | AC400 | |||||||||||
Breaker Type | L | M | H | L | M | H | L | M | H | L | M | H |
Rated short-circuit breaking capacity Icn (kA) | 35 | 50 | 85 | 35 | 50 | 85 | 50 | 65 | 100 | 50 | 65 | 100 |
Rated short-circuit connecting capacity Icm (kA) | 73.5 | 105 | 187 | 73.5 | 105 | 187 | 105 | 143 | 220 | 105 | 143 | 220 |
ATSE Type | CB Type | |||||||||||
Using Type | AC-33iB | |||||||||||
Ambient Temperature | -35°C~+70°C | |||||||||||
Electrical life (Times) | 1000 | 1000 | 1000 | 1000 | ||||||||
Mechanical life (Times) | 5000 | 5000 | 3000 | 2000 | ||||||||
Mini transfer time | ≤3s(Can be added the conversion time delay) |
Shape Dimension
Model NO. | L (mm) | W (mm) | H (mm) |
RDQH5- 125L/3P | 308 | 194 | 132 |
RDQH5- 125L/4P | 338 | 194 | 132 |
RDQH5- 125M(H)/3P | 308 | 194 | 149 |
RDQH5- 125M(H)/4P | 338 | 194 | 149 |
RDQH5-250L/3P | 347 | 209 | 151 |
RDQH5-250L/4P | 382 | 209 | 151 |
RDQH5-250M(H)/3P | 347 | 209 | 169 |
RDQH5-250M(H)/4P | 382 | 209 | 169 |
RDQH5-400L/3P | 490 | 309 | 215 |
RDQH5-400L/4P | 539.5 | 309 | 215 |
RDQH5-630L/3P | 568 | 328 | 216.5 |
RDQH5-630L/4P | 626 | 328 | 216.5 |
Controller Function
Function Set | Set Range | Default |
1 Operation Mode | Auto, Manual | Auto |
2 Grid structure | Grid Net and Grid Net, Grid Net and Generator Power | Grid Net and Grid Net |
3 Work mode | Self throw-Self reset, Self throw-Self not reset, Mutual backup | Self throw-Self reset |
4 Buzzer alarm | ON, OFF | ON |
5 Monitor function | Overvoltage, Undervoltage, phase-loss detection. Set range of Overvoltage threshold 230V~280V, Undervoltage 140V~220VO | vervoltage set 270V,Undervotlage se 170V |
6 Normal turns Backup Time-delay | 1s~255s | 3s |
7 Backup turns Normal Time-delay | 1s~255s | 3s |
8 Both break delay | 0.5s~10s | 3s |
9 Phase sequence detect | ON, OFF | ON |
10 Fire linkage control | AC/DC12V~36V input to Both break | |
11 Voltage calibration | Can take 6 ways Voltage Calibration |
Technical parameter
Frame Size Rated Current Inm(A) | 125 | 250 | 400 | 630 | ||||||||
Rated current Ie(A ) | 16、20、25、32、40 | 100、125、160、180、 | 225、250、315、 | 400、500、630 | ||||||||
50、63、80、100、125 | 200、225、250 | 350、400 | ||||||||||
Pole | 3P、4P | |||||||||||
F requency (Hz) | 50 | |||||||||||
Rated insulation voltage Ui (V ) | AC800 | |||||||||||
Rated impulse withstand voltage Uimp(kV) | 8 | |||||||||||
Rated operate voltage Ue (V ) | AC400 | |||||||||||
Breaker Type | L | M | H | L | M | H | L | M | H | L | M | H |
Rated short-circuit breaking capacity Icn (kA) | 35 | 50 | 85 | 35 | 50 | 85 | 50 | 65 | 100 | 50 | 65 | 100 |
Rated short-circuit connecting capacity Icm (kA) | 73.5 | 105 | 187 | 73.5 | 105 | 187 | 105 | 143 | 220 | 105 | 143 | 220 |
ATSE Type | CB Type | |||||||||||
Using Type | AC-33iB | |||||||||||
Ambient Temperature | -35°C~+70°C | |||||||||||
Electrical life (Times) | 1000 | 1000 | 1000 | 1000 | ||||||||
Mechanical life (Times) | 5000 | 5000 | 3000 | 2000 | ||||||||
Mini transfer time | ≤3s(Can be added the conversion time delay) |
Shape Dimension
Model NO. | L (mm) | W (mm) | H (mm) |
RDQH5- 125L/3P | 308 | 194 | 132 |
RDQH5- 125L/4P | 338 | 194 | 132 |
RDQH5- 125M(H)/3P | 308 | 194 | 149 |
RDQH5- 125M(H)/4P | 338 | 194 | 149 |
RDQH5-250L/3P | 347 | 209 | 151 |
RDQH5-250L/4P | 382 | 209 | 151 |
RDQH5-250M(H)/3P | 347 | 209 | 169 |
RDQH5-250M(H)/4P | 382 | 209 | 169 |
RDQH5-400L/3P | 490 | 309 | 215 |
RDQH5-400L/4P | 539.5 | 309 | 215 |
RDQH5-630L/3P | 568 | 328 | 216.5 |
RDQH5-630L/4P | 626 | 328 | 216.5 |