W2R Automatic Transfer Switch
W2R Automatic Transfer Switch (ATS) is a reliable dual power transfer device designed to automatically switch between normal and backup power sources when power failure or voltage abnormality occurs.
With fast transfer performance, compact modular design, and multiple pole options including 2P, 3P, and 4P, the W2R ATS ensures continuous and stable power supply for residential, commercial, and industrial applications.
Supporting rated currents from 16A to 100A and AC400V power systems, it is widely used in backup power systems, solar PV applications, generators, and distribution cabinets where uninterrupted power availability is required.
•Automatic Power Transfer: Automatically detects power supply failure or abnormal conditions and quickly switches between normal and standby power sources to maintain continuous electricity supply.
•Fast Switching Performance: Provides transfer time of less than 50ms, helping reduce power interruptions and ensuring reliable operation of sensitive electrical equipment.
•Flexible Pole Options: Available in 2P, 3P, and 4P configurations to meet different single-phase and three-phase power distribution requirements.
•Wide Current Range: Supports rated currents from 16A to 100A, providing flexible solutions for residential, commercial, and industrial backup power applications.
•Dual Operation Modes: Supports both automatic and manual operation, allowing convenient control and maintenance during different application scenarios.
•Reliable Electrical Performance: Features PC class switching capability, high insulation voltage up to AC690V, and rated impulse withstand voltage of 8kV for safe operation.
•Compact DIN Rail Design: Compact structure with easy installation and maintenance, suitable for distribution boxes and electrical cabinets.
•Long Service Life: Provides electrical life up to 2000 operations and mechanical life up to 5000 operations for durable performance.
•Wide Application Compatibility: Suitable for grid-generator switching, solar PV backup systems, emergency power systems, and critical load protection.
Features
Overview
The dual power automatic transfer switch is a newly developed miniature household power transfer switch. This switch is mainly used to test whether the main or backup power supply is working properly. When the normal power supply is abnormal, the backup power supply will immediately start working to ensure the continuity, reliability, and safety of power supply. This product is designed specifically for household rail installation and is specifically used for PZ30 distribution boxes.
According to GB/t14048.11, Part 6-1: Multifunctional Equipment and Switchgear specifies that ATSE is the most compliant low-voltage switchgear and control device.
Product Model and Classification
Normal Operating Time and Installation Conditions
Surrounding air temperature: The highest temperature shall not exceed 40 , the lowest shall not be lower than -5 , and the average temperature within 24 hours shall not exceed 35
Altitude: The sea level at the installation site should not exceed 2000m
Atmospheric conditions: When the highest temperature reaches 40 ℃, the relative humidity of the installation site should not exceed 50%; When the temperature reaches the lowest temperature of -5 ℃ and the relative humidity is high, for example, when the temperature is 25 ℃, the relative humidity is 90%. Due to temperature changes, special measures should be taken to address occasional condensation on the surface of the product.
Pollution level: TSE pollution level meets the specified level 3 of GB/t14048.11
Installation category: The installation type of TSE complies with the specified category in GB/t14048.11
Installation conditions: TSE can be vertically installed in control cabinets or distribution cabinets. Ensure that the installation distance meets the requirements in Figure 1.
Installation and Wiring
Please check the integrity of TSE before installation. Then use the joystick to turn on and off TSE, check the flexibility of the transmission device, and detect the generation and disconnection conditions of the load at each stage of the normal and backup power supply
Control voltage detection: AC50HZAC220V. The coil in the control circuit should not be too long. The cross-sectional area of copper wire should not exceed2.0mm²
According to the installation requirements of the power distribution system, please equip appropriate circuit breakers to ensure the safety of personnel and equipment.
Specification
| model | W2R-63A | ||||||||
| Rated current le A | 16 | 20 | 25 | 32 | 40 | 50 | 63 | ||
| Insulation voltage Ui | AC 690V,50Hz | ||||||||
| Rated voltage Ue | AC 400V,50Hz | ||||||||
| level | PC level: capable of manufacturing and withstanding without generating short-circuit current | ||||||||
| Usage category | AC-33iB | AC-31B | |||||||
| Measuring rod | 2P | 3P | 4P | ||||||
| Weight (kg) | 1.7 | 2.1 | 2.6 | ||||||
| Electrical lifespan | 2000 times; manual operation: 5000 times | ||||||||
| Rated short-circuit current Iq | 5kA | ||||||||
| Short circuit protection device (fuse) | RT16-00-63A | ||||||||
| Rated impulse withstand voltage | 8kV | ||||||||
| control circuit | Rated control voltage Us: AC220V, 50Hz Normal working conditions: 85% Us ~110% Us | ||||||||
| Auxiliary circuit | 2 relays, each with two sets of contact converter contact capacity: AC220V 50Hz le=5y | ||||||||
| Contacter conversion time | <50ms | ||||||||
| Operation conversion time | <50ms | ||||||||
| Return conversion time | <50ms | ||||||||
| Power off time | <50ms | ||||||||
