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Product Introduction
The Luyu Q-120 Series is a 120W four-output rail-mounted switching power supply, specifically designed for industrial control equipment, automation systems, and communication devices that require multiple DC voltages simultaneously. The series includes three models: Q-120B, Q-120C, and Q-120D, providing output combinations of 5V/12V/-5V/-12V, 5V/15V/-5V/-15V, and 5V/12V/24V/-12V respectively. A single power supply can meet the power needs of PLCs, sensors, actuators, display panels, and other devices.
It features an AC input voltage selector switch design, allowing free switching between 88-132VAC and 176-264VAC input ranges, making it compatible with global power grid standards. The product undergoes 100% full-load burn-in testing, with each unit inspected before leaving the factory to ensure performance specifications are met. It comes with short-circuit, overload, and over-voltage protection – output is automatically shut down under abnormal conditions and automatically restarts when the input is restored.
With a fixed 25KHz switching frequency and efficiency up to 80%, it supports standard DIN rail mounting and is compatible with TS-35 rail for quick installation. Dimensions: 199×110×50mm, weight: 0.86Kg. It is suitable for industrial scenarios requiring multiple voltage outputs, such as factory automation lines, equipment control systems, and communication base stations.
Product Features
Four Independent Outputs, Multiple Functions in One Unit
The Q-120 Series offers three voltage combination options. The main output (5V) provides a current of 8-11A to meet the high-current demands of core equipment. The auxiliary outputs cover 12V, 15V, 24V, and negative voltages, compatible with the power specifications of various industrial devices. Each output is adjustable within its specified current range, flexibly accommodating different load requirements.
Wide Voltage Input with Switch Selector
Built-in input voltage selector switch supports two input ranges: 88-132VAC and 176-264VAC, with a frequency range of 47-63Hz. Also supports 240-370VDC input. Compatible with power supply environments worldwide.
Comprehensive Electrical Protection for Reliable Operation
Triple protection: short-circuit protection, overload protection (105%-135%), and over-voltage protection (115%-135% of main output). Once triggered, the power supply automatically shuts down. After the fault is cleared, power cycling restores normal operation, effectively preventing equipment damage caused by abnormal power supply.
100% Full-Load Burn-In Testing
Each Q-120 power supply undergoes long-term burn-in testing under rated load before leaving the factory, eliminating early failure risks and ensuring high stability and reliability for end users. A 2-year warranty provides additional assurance.
Product Advantages
High Efficiency, Low Power Consumption
Up to 80% efficiency. Less heat, lower energy bills, ideal for long-term operation.
Industrial-Grade Reliability & Long Lifespan
2-year warranty. 100% full-load burn-in tested. Industrial components, shock & interference resistant for years of stable use.
Flexible Multi-Output Configuration
Each channel current adjustable. Total power ≤120W. Easy to match various load combinations.
Stable & Accurate Voltage Output
CH1 voltage adjustable: -5%~+10%. Tolerance down to ±2%. Maintains steady voltage under changing loads.
High Safety & Low Leakage
Leakage current <3.5mA/240VAC. Strong input-output isolation. Safe for sensitive and critical devices.
Fast & Smooth Startup
200ms setup, 50ms rise, 20ms hold-up at full load. Ensures reliable start/stop for your equipment.
Product Applications
The Q-120 series four-output switching power supply is widely used in industrial equipment and systems that require multiple DC voltages simultaneously:
Industrial Automation Control Systems:
Provides stable power supply at different voltage levels for PLCs, industrial touchscreens, sensor arrays, relay modules, stepper motor drivers, etc. A single power supply drives both control cores and actuators, simplifying the system power architecture.
Communication Base Stations & Network Equipment:
Supplies multiple DC outputs for signal processing modules, RF units, switches, routers and other equipment within base stations, ensuring continuous and stable operation of communication devices.
Test & Measurement Equipment:
Delivers precise multi-voltage DC power for laboratory instruments, online inspection equipment, data acquisition systems, etc., meeting different requirements for positive and negative voltages across modules.
Medical Instrumentation:
Suitable for patient monitors, medical imaging devices, diagnostic instruments and other medical electronic equipment that require multiple output voltages, satisfying the stability and safety demands of medical applications.
Smart Buildings & Security Systems:
Provides centralized power supply for door access controllers, cameras, alarm host units, building automation modules and other distributed devices, facilitating unified management.
LED Displays & Advertising Equipment:
Powers the control cards, driver boards, signal processing modules and other multi-voltage units of LED display systems.
Customized Machinery:
For dedicated equipment that needs to drive actuators at different voltage levels, the Q-120 series offers a one-for-many power supply solution.
FAQ
Q1: Does it support 110V/220V switching?
A1: Yes. Built-in voltage selector: 88~132VAC (110V) or 176~264VAC (220V), global compatible.
Q2: Can all four outputs run at full load together?
A2: Each channel current is adjustable within specs. Total power ≤120W. Distribute loads reasonably.
Q3: How to recover after protection triggers?
A3: After short circuit/overload/overvoltage, the PSU shuts down. Restart power to recover.
Q4: Is it suitable for high-temperature cabinets?
A4: Operating temperature: -10℃ ~ +60℃. Derated above 60℃. Works well in ventilated cabinets.
Q5: Does it meet safety and EMC standards?
A5: Designed to EN60950, EN55022, EN55024. High isolation and safety approved.
Q6: What is the warranty period?
A6: 2-year warranty. Free repair/replacement for non-human quality issues.
