ODM MCL31 Series Low Frequency UPS Technical Supplier, Factories

This series of three-phase input and single-phase output UPS is designed to meet the high reliability power requirements of China's power grid environment and network systems. It is a high-performance sine wave online UPS specially designed for network computer rooms, small intelligent devices, and precision instruments in finance, telecommunications, insurance, transportation, taxation, military, securities, energy, education, government, enterprise, and medical systems, and is especially suitable for harsh power grid environments. The design concept of this UPS series tailored for China's power grid will undoubtedly become the best partner to ensure the stable operation of network systems, and users can also choose optional accessories such as isolation transformers, external chargers, and SNMP adapters.

Product Description

Key Features

Ultra-wide AC input voltage range reduces battery usage frequency and effectively extends battery service life.

Ultra-wide input frequency range ensures stable operation when connected to various diesel generators.

Pure online double-conversion topology design provides the best power quality output.

Adopts SPWM pulse width modulation, IGBT power modules, and output isolation transformers to ensure the UPS output is immune to power grid fluctuations and noise interference.

Uses advanced phase-locked synchronization technology and electronic static bypass switches to achieve zero transfer time at the output, meeting precision equipment demands.

Microprocessor-based control technology comprehensively enhances overall system availability and reliability.

UPS inverter and PFC utilize digital control technology, achieving an input power factor >0.98 with minimal harmonic distortion.

Cold start functionality allows startup with batteries alone, or mains power without batteries, including automatic reboot upon utility restoration.

Product Overview

Technical Specifications

Model MC6KL31 MC10KL31 MC15KL31 MC20KL31 MC30KL31
Capacity 6KVA/4.8KW 10KVA/8KW 15KVA/12KW 20KVA/16KW 30KVA/24KW
Host Machine Specification
UPS Structure Online Double Conversion
Appearance Low Frequency with Output Isolated Transformer
Overall Efficiency (AC-AC) >85%
Noise (In 2 meters) <50dB
Working Temp -10°C ~ 40°C
Storage Temp -25°C ~ 60°C (Without Batteries)
Humidity <95% Non-Condensing
Safety Standard IEC62040
Parallel Redundancy Available
Protections Overload, Short-Circuit, Over Temp., Utility Power Voltage High/Low, BAT Voltage High/Low
DC Start Available
Generator Compatibility Available
Display LCD Display: Multi-Language with Status Messages, Input/Output Status, ECO Mode, INV Temp, History Logs, Battery Test. LED Indicators: UPS State Indicator
Mute Auto
Cabinet Standard IP20
Cooling System Intelligent Speed Control Cooling Fan
Elevation <1000M, Without Derating
Rectifier Specification
Input Voltage 380Vac, ±25%, 3-Phase
Input Voltage Range 286 - 475Vac
Input Frequency Range 50Hz ±5%
Soft-Start >20 Seconds
Output Specification
Output Voltage 220/200/230/240Vac
Output Power Factor 0.8
Output Voltage Regulation 220Vac ±1% (Static Load), 220Vac ±2% (50~0% Sudden Change)
Output Frequency 50Hz ±0.1% (BAT Mode)
Distortion (THD) <1% (Linear Full Load), <3% (Non-Linear Full Load)
Frequency Tracking Range 46 - 54Hz
Output Waveform Pure Sine Wave
Overload Capability >125%: >1 Min; >150%: >300ms
Noise Suppression EMI/RFI Filter
Crest Ratio 3:1
Short-Circuit Protection Auto Circuit Protection, Output Voltage/Current to 0
Output Abnormal Inverter Output Auto-Locked Protection
Bypass Specification
Static Bypass Transfer Time 0 ms
Static Bypass Range 220Vac (-15% ~ +15%)
Frequency Range ±1Hz, ±2Hz, ±3Hz Selectable
Bypass to Inverter Transfer Time 2 ms
Frequency Tracking Speed 0.5 - 2 Hz/s
Manual Maintenance Bypass None
Alarm Specification
Alarm Indication Utility Power Fault, Battery Voltage Low, Overload, UPS Fault
Mute Feature Auto
Battery Specification
Battery Type Sealed Lead Acid Maintenance Free
Rated Voltage / Units 348 - 384Vdc / 29 - 32 Units Adjustable
Charging Current (Ext.) Standard 5A - 10A (Optional)
Low Battery Protection Automatic Shutdown Protection
Communication Specification
Communication Port RS232 (Standard); SNMP / RS485 / Dry Contact (Optional)
Remote Management Multi-functional Monitoring System, Online & Battery Status, Fault Alerts, Remote Control
Physical Parameters
Dimensions mm (W×D×H) 310 × 655 × 790
Net Weight (kg) 105 110 120 125 130

Frequently Asked Questions

What topology architecture does the MCL31 Series UPS utilize?

The MCL31 Series features an online double-conversion design with an integrated output isolation transformer, SPWM modulation, and IGBT power modules to isolate critical loads completely from power grid fluctuations.

Is this UPS compatible with diesel generators?

Yes. Thanks to its ultra-wide input voltage range (286-475Vac) and extended input frequency capability (50Hz ±5%), it works seamlessly and reliably with various diesel generators.

What is the transfer time during a power interruption?

It features a 0ms static bypass transfer time via advanced phase-locked synchronization and electronic static switches, guaranteeing zero power interruption for precision equipment.

Does the system support cold start functionality?

Yes, the UPS supports DC cold start directly from battery banks without utility power, as well as starting via mains power when batteries are disconnected.

What communication and monitoring interfaces are provided?

Standard equipment includes an RS232 port with support for intelligent remote software. Optional communication accessories include SNMP cards, RS485 interfaces, and dry contact modules.

What power capacities are offered across this model line?

The series is available in capacities ranging from 6KVA/4.8KW (MC6KL31) up to 30KVA/24KW (MC30KL31), covering 10KVA, 15KVA, and 20KVA mid-range power requirements.

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