JUQ1 PC Class Automatic Transfer Switch
The JUQ1 Series is an isolation-type PC Class Automatic Transfer Switch designed for high-capacity dual-power distribution systems. With rated currents from 16A to 3200A and stable I-O-II switching positions, it combines power transfer and load isolation in one integrated unit.
Standard: IEC 60947-6-1
Key Features of the JUQ1 Automatic Transfer Switch
Isolation-Type Switching Structure
Combines automatic power transfer and load isolation functions in one integrated switching unit.
16A–3200A Current Range
Covers a wide range of distribution capacities, from standard switchboards to large industrial power systems.
Stable I-O-II Positions
Provides normal power, OFF, and standby power positions for reliable switching and visible circuit isolation.
Multiple Operating Modes
Supports automatic operation, remote electrical control, emergency manual operation, and manual switching.
Mechanical and Electrical Interlocking
Independent interlocking mechanisms prevent the normal and standby power sources from being connected simultaneously.
3-Pole and 4-Pole Options
Available in 3P and 4P configurations for different low-voltage power distribution systems.
JUQ1 Component Overview
Explore the main components and operating controls of the JUQ1 PC Class Automatic Transfer Switch, including power terminals, source-position indicators, control terminals, electrical key lock, and emergency manual operation features.
Technical Specifications
| Parameter | JUQ1 Specification |
|---|---|
| Product Type | JUQ1 PC Class Automatic Transfer Switch |
| Rated Current | 16 A–3200 A |
| Number of Poles | 3P, 4P |
| Rated Operational Voltage | AC 400 V |
| Rated Frequency | 50 Hz |
| Control Voltage | AC 220 V standard; DC 24 V, DC 48 V or DC 110 V options |
| Switching Positions | I–0–II |
| Operating Modes | Automatic, motorized remote and emergency manual operation |
| Transfer Modes | Utility-to-utility, utility-to-generator, automatic transfer with automatic return |
| Utilization Category | AC-31A / AC-33A / AC-35A, depending on current rating |
| Rated Impulse Withstand Voltage | 8 kV or 12 kV, depending on frame size |
| Transfer Time | Approximately 0.45–1.2 s, depending on frame size |
| Pole Configuration | 3P / 4P |
| ATSE Class | PC Class |
| Applicable Standard | IEC 60947-6-1 / GB/T 14048.11 |
TECHNICAL SPECIFICATIONS VARY BY FRAME SIZE, CURRENT RATING, POLE CONFIGURATION AND CONTROL TYPE. PLEASE CONTACT JUTRION TO CONFIRM THE EXACT JUQ1 MODEL AND PROJECT CONFIGURATION.
Rated Current
| JUQ1 Frame | Available Rated Current |
|---|---|
| JUQ1-100 Frame | 20A, 32A, 40A, 63A, 80A, 100A |
| JUQ1-160 Frame | 125A, 160A |
| JUQ1-250 Frame | 200A, 225A, 250A |
| JUQ1-400 Frame | 315A, 400A |
| JUQ1-630 Frame | 500A, 630A |
| JUQ1-1000 Frame | 800A, 1000A |
| JUQ1-1250 Frame | 1250A |
| JUQ1-1600 Frame | 1600A |
| JUQ1-2000 Frame | 2000A |
| JUQ1-2500 Frame | 2500A |
| JUQ1-3200 Frame | 3200A |
Applications
Commercial Buildings
Provides automatic transfer between normal and standby power supplies for office buildings, shopping centers, hotels and other commercial distribution systems.
Industrial Facilities
Suitable for factories, workshops, production lines and industrial distribution systems requiring reliable transfer between two power sources.
Generator Backup Systems
Supports utility-to-generator transfer and automatic return when the normal power supply is restored, depending on the selected controller configuration.
Data Centers and Communication Rooms
Provides source-transfer functionality for data centers, communication rooms, telecom facilities and other installations requiring dependable power continuity.
Hospitals and Public Facilities
Suitable for hospitals, public buildings and infrastructure projects where essential distribution systems require an alternate power source.
Main Distribution Systems
Available in current ratings up to 3200A for main distribution boards and other high-current normal and standby power-transfer applications.
Compliance & Standards
The JUQ1 PC Class Automatic Transfer Switch is designed for low-voltage normal and standby power-transfer applications. Its product design references the applicable requirements for transfer switching equipment, low-voltage switchgear and switch-disconnectors.
- IEC 60947-6-1 – Low-voltage switchgear and controlgear – Transfer switching equipment
- IEC 60947-1 – Low-voltage switchgear and controlgear – General rules
- IEC 60664 – Insulation coordination for equipment within low-voltage systems
- CE Requirements – Designed to meet applicable European low-voltage electrical requirements
- RoHS Requirements – Complies with restrictions on hazardous substances
Applicable standards, test documents and compliance information may vary by model, current rating and destination market. Please confirm the required documentation with JUTRION before ordering.
Why Choose JUTRION JUQ1 ATS?
Dedicated PC Class Transfer Mechanism
- The JUQ1 uses a load-switch type PC Class transfer mechanism designed for switching between normal and standby power sources. It does not depend on two circuit breakers to complete the transfer function.
Integrated Logic Controller
- The switching mechanism and logic control are integrated into one unit. The controller provides source detection, transfer commands and automatic transfer with automatic return, depending on the selected configuration.
Wide Current Range
- The JUQ1 series covers rated currents from 20A to 3200A, with multiple frame sizes for commercial, industrial and main-distribution applications.
Multiple Operating Modes
- Supports automatic operation, motorized remote operation and emergency manual operation, allowing the transfer switch to be operated under different control and maintenance conditions.
Electrical and Mechanical Interlocking
- Electrical and mechanical interlocking helps prevent the normal and standby power sources from being connected simultaneously during the transfer sequence.
Flexible Configuration Options
- Available in 3-pole and 4-pole configurations, with AC 220V control as standard and selected DC 24V, 48V or 110V control options.
Frequently Asked Questions
What Is the JUQ1 PC Class Automatic Transfer Switch?
The JUQ1 is a PC Class automatic transfer switch designed to transfer a load between normal and standby power sources. It uses a dedicated load-switch transfer mechanism with integrated logic control. As a PC Class ATSE, it does not normally provide overload or short-circuit protection, so coordinated protective devices are required in the power system.
How Do I Choose the Correct JUQ1 Rated Current?
Select a JUQ1 rated current that can carry the highest current expected through the transfer switch. Also check the utilization category, load type, motor or transformer inrush, ambient temperature, enclosure conditions, terminal capacity and coordination with the protective devices. The selected current must match the exact frame size and project duty.
Can the JUQ1 ATS Work with a Diesel Generator?
Yes. The JUQ1 supports utility-to-generator transfer applications and automatic return when the normal supply is restored, depending on the selected controller and wiring configuration. Confirm the generator start signal, voltage and frequency sensing, transfer delays and control-power arrangement before ordering.
What Is the Difference Between a PC Class ATS and a CB Class ATS?
A PC Class ATS uses a dedicated switching mechanism specifically designed for transferring power between two sources, while a CB Class ATS is typically built with circuit breakers and can also provide overload and short-circuit protection. PC Class ATS units are generally more compact and optimized for reliable power transfer.
Should I Choose a 3-Pole or 4-Pole JUQ1 ATS?
A 3-pole model switches the three phase conductors while leaving the neutral unswitched. A 4-pole model also switches the neutral. The decision depends on the system earthing arrangement, generator neutral connection, whether the alternate source is separately derived and the applicable installation rules.
What Operating and Control Options Are Available?
The JUQ1 supports automatic operation, motorized remote operation and emergency manual operation. AC 220V control is standard, while selected configurations may support DC 24V, DC 48V or DC 110V. Confirm the control type, pole configuration, rated current and required transfer mode when ordering.
TALK TO OUR ATS SPECIALISTS
Simply tell us your rated current, system voltage, pole configuration, standby power source, and application requirements. Our engineers will recommend the most suitable JUQ1 PC Class Automatic Transfer Switch for your project.