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RDQ3NM series ATS according to the controller functions have three modes: Auto change Auto recovery (R) Auto change no auto recovery (S) and Power Grid-Generator (F), the first two mode used in power grid-power grid system, the latter mode is used in power grid-generator system.
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RDQ3NMB Generator Starter Switch 630 Amp Automatic Transfer Switches
Working Mode
● RDQ3NM series intelligent dual power ATS have two working mode: Auto mode and Manual mode.
● Auto Mode: RDQ3NM series ATS according to the controller functions have three modes: Auto change Auto recovery (R) Auto change no auto recovery (S) and Power Grid-Generator (F), the first two mode used in power grid-power grid system, the latter mode is used in power grid-generator system.
● Manual mode: manual mode has three working mode, main power, backup power and breaker trip modes. Under manual working mode, there will be no auto transfer function.
● Main power mode: Forced disconnecting backup power, and turn ON the main power;
● Backup power mode: Forced disconnecting the main power and turn ON the backup power;
● Breaker trip mode: To disconnect two power sources, also can switch on the fault tripped circuit breaker.
OEM/ODM Service
Support using customer brand MCCB as main switch.
Technical Specification
Model | RDQ3NMB |
Rated Current | 63A to 1250A |
Poles | 3P and 4P |
Working Power | AC150V-300V 50/60Hz |
Operation Mode | Auto and Manual |
Auxiliary power supply voltage | DC15V-24V |
Voltage measurement range | 40V-300V |
Under-voltage Transfer Value | 160V-200V Adjustable |
Over-voltage Transfer Value | 240V-290V Adjustable |
Transfer time delay | 0-180s adjustable |
Generator start/stop time delay | 0-180s adjustable |
Power Consumption | ≤10W |
Installation mode | LED controller separable |
Working Position | Three working positions I - O- II |
Running Status LED display | I/II Power available, I/II Power ON |
Operation Mode | Automatic, Manual |
Voltage monitoring function | Over-voltage, Under-voltage and Phase missing |
Generator control | A group of 10A relay dry contact |
Fire control | Passive contact input with a set of NO voltage-free signal feedback |
Source priority | Source I priority, Source II priority, No priority |
Terminal Wiring Instruction
RDS2 Series
PC Class Automatic Transfer Switch
Adopt two input one output design, easy for wiring;
With: 0" position technology, can be forced to :0" position under emergency situation to match the fire-linkage requirement;
Optional multifunction intelligent controller with programmable high/low voltage protection high/low frequency protection, adjustable transfer time delay, adjustable center delay time build-in engine exerciser, fault transfer to: 0" function is optional;
Optional separate LCD display, optional Rs485 communication function;
Optional functions: Center delay, fault to: 0" position, Engine exerciser, Current limit etc Frame current: 125, 160, 250, 630, 1600, 2000, 3200A
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