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Single Phase 40 Amp Auto Changeover Switches

RDQ3-63 automatic transfer switch series has 1 size, which are 63A. Its structure comprised with two MCB and accessories, mechanical interlock transmission mechanism, automatic controller, motor operation mechanism etc.

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RDQ3-63 Single Phase Changeover 40 Amp Switch Automatic Transfer Switches


RDQ3-63 single phase 40 amp auto changeover switches series is only available in 63A size. Its structure consists of two MCBs and accessories, a mechanical interlocking transmission mechanism, an automatic controller, and an electric operating mechanism. At the same time, the MCB inside the ATS has original overload and short circuit protection functions, and can also be used as the main circuit for ON/OFF and protection. We have designed and developed ATS by our own R&D team. Radin's ATS has an elegant appearance and a distinguished design. It complies with the AC-32B usage category of the IEC/EN 60947-6-1 standard.


The single phase 40 amp auto changeover switches can be customized to use customer brand MCB, with 16A, 20A, 32A, 40A, 50A, 63A current automatic transfer switch.

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Terminal Wiring Instruction

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101~103 main power external indicator light

Signal output (AC220V 0.5A)

101- indicator light common null line

102- main power signal output

103- main power ON signal output

201~203 backup power external indicator light

Signal output (AC220V 0.5A)

201- indicator light common null line

202- backup power signal output

203- backup power ON signal output


Outline And Installation Dimensions

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It has smaller size, and has the characteristics of easy installation and space saving.

It adopts modular design, operating unit, transmission mechanism, and control circuit is fully independent and easy for replacement;

Mechanical interlock device use gear transmission and avoid two MCB close at same time; Controller power supply and power source sampling power separate from SCM control system, from the hardware design to overcome the EMI.


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It has reliable mechanical interlock device and electrical interlock protection, avoiding two MCCB close at same time; Controller power supply and power source sampling power separate from SCM control system, from the hardware design to overcome the EMI;

Controller display panel removable can be separately install, to match different installation requirement; Frame current: 63, 125, 250, 400, 630, 800, 1250A


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