ZYQ2 Automatic Transfer Switch Manufacturer

ZYQ2 Automatic transfer switch

Description

Product representative image

Scope of Application

The ZYQ2 series intelligent dual-power transfer switches represent a high-capacity, technologically advanced solution for large-scale power distribution networks. These switches are specifically engineered for AC systems operating at a frequency of 50Hz, with a rated working voltage of 400V and an extensive current range spanning from 16A to 1250A. The ZYQ2 serves as a pivotal fail-safe in emergency power supply systems, facilitating the seamless mutual conversion between the Normal power source (N) and the Standby power source (R).

A defining advantage of the ZYQ2 series is its advanced digitalization and remote management capability. Selected models are equipped with high-speed communication ports, enabling the realization of "unattended substations" through comprehensive remote control, status measurement, and signaling. This makes the ZYQ2 an indispensable component for modern smart grids and mission-critical infrastructure where manual intervention is often impractical. By integrating complex logic for control, signal feedback, and interlocking, the ZYQ2 ensures that strategic facilities maintain absolute operational integrity even during severe utility grid disturbances. The product is manufactured in strict compliance with the GB/T 14048.11 and IEC 60947-6-1 standards.

Application Scenarios

Strategic Facilities: Military installations and secure government compounds.

Critical Healthcare: General hospitals and specialized emergency medical centers.

Public Infrastructure: International airports, subway stations, and large-scale transit hubs.

Commercial Complexes: High-end shopping malls, office skyscrapers, and luxury hotels.

Industrial Zones: Data centers, unattended substations, and automated manufacturing plants.

Residential Communities: High-density residential districts and intelligent smart-home complexes.

Normal working conditions

To ensure the long-term reliability of the ZYQ2 series, the installation site must adhere to the following parameters:

Ambient Air Temperature: Operations are rated for -5°C to +40°C, with a 24-hour average temperature not exceeding +35°C.

Installation Altitude: Standard installation is rated up to 2,000 meters; de-rating is required for higher altitudes to maintain dielectric performance.

Atmospheric Stability: Relative humidity should not exceed 50% at the peak temperature of +40°C. In cooler environments (e.g., +20°C), humidity up to 90% is permissible, provided that condensation caused by temperature fluctuations is managed.

Environmental Class: Rated for Pollution Degree 3, the switch is resistant to conductive dust and non-corrosive industrial vapors. It must be installed in locations free from intense vibration or explosive hazards.

Structural features

The ZYQ2 series features a modular and robust structural design, built to handle heavy-duty shell frame level currents. The architecture is exclusively optimized for three-pole (3P) and four-pole (4P) configurations, ensuring comprehensive neutral management for industrial-grade three-phase systems.

A key structural innovation of the ZYQ2 is its Versatile Controller Platform, which offers three distinct configuration paths (CM1 series) to meet diverse user requirements:

1.M(I) End Type: Optimized for localized terminal control and basic switching logic.

2.Y(II) Integrated LCD Controller: Features a built-in liquid crystal display on the switch body for streamlined on-device visualization and parameter adjustment.

3.N(III) Split-type Liquid Crystal Controller: Allows for the display and control module to be mounted remotely (e.g., on a cabinet door). This split architecture significantly improves operator safety and accessibility during real-time monitoring.

The drive mechanism utilizes a high-reliability motorized system that ensures stable, noiseless transitions with minimal impact force, preserving the mechanical integrity of the internal switching contacts over a service life exceeding 10,000 operations. The unit also includes a dedicated manual override handle and an auto/manual mode selector for emergency operations. Safety is further reinforced by a sophisticated dual interlocking system (mechanical and electrical), ensuring that the two power sources can never be closed simultaneously, providing absolute dielectric isolation.

Product Model and Its Meaning
ZYQ2 Automatic transfer switch

Technical Parameters

The ZYQ2 series provides industry-leading performance metrics across its extensive current spectrum, making it one of the most versatile ATS solutions available.

Extensive Current Coverage: Supports a wide rated working current range from 16A to 1250A, catering to everything from small feeder circuits to major incoming power lines.

High Dielectric & Surge Strength: Designed for a rated insulation voltage (Ui) of 800V and an impulse withstand voltage (Uimp) of 8kV. This ensures the device can withstand significant transient surges and lightning strikes common in industrial power grids.

Advanced Remote Capabilities: Models with communication interfaces allow users to realize "unattended" operation via the Four-Remote functions: Remote Control (switching actions), Remote Adjustment (parameter settings), Remote Measurement (voltage/frequency), and Remote Signaling (status alarms).

Selectable Transfer Logic: The controller supports multiple working modes, including self-switching/self-resetting and self-switching/non-resetting. The transfer delays and sensing thresholds for undervoltage or phase loss are fully adjustable to match specific power environment requirements.

Rapid Switching Efficiency: The ZYQ2 features optimized high-speed switching logic, with a total transfer speed (TSE) designed to minimize voltage dips, ensuring that sensitive lighting, signaling, and control circuits remain stable during the transition.

Compliance and Safety: Every unit is manufactured in accordance with international standards, ensuring electromagnetic compatibility (EMC) so that the switch does not interfere with nearby sensitive electronic equipment or industrial controllers.

External appearance and installation dimensions

Specifications	W	W1	L	L1	H
100/3P	288	259	202	180	122
100/4P	320	290	205	182	122
250/3P	330	300	211	189	144
250/4P	365	335	209	186	144
400/3P	453	400	328	298	192
400/4P	497	444	328	298	192
630/3P	572	515	328	298	205
630/4P	632	575	325	294	205
800/3P	613	556	345	315	205
800/4P	683	627	345	315	205