EVSPOWER SNMP EVS-A3-1048 48Vdc 220Vac 50/60Hz 800W Pure Sine Wave Telecom DC Power Inverter for Communication Rooms

Product Description

Product Description
Pure Sine Wave Telecom DC Power Inverter
Telecom DC Power Inverter Back View
Inverter Technical Overview
Specification
DC48V Series Parameters
Rated power 1KW 2KW 3KW 4KW 5KW 6KW 8KW 10KW 12KW
Rated battery voltage DC48V
Battery voltage range DC40-64V Low voltage warning 44V (follows low voltage power-off, with a high voltage of 2V)
Low voltage power outage 42V (adjustable from 40-48V)
Low voltage recovery 54V (follows the float charging voltage, adjustable)
High voltage power outage 63V (adjustable from 61-64V)
High voltage recovery 62V (1V below high voltage cutoff)
Low voltage shutdown 38Vdc (if the voltage falls below this level, the device shuts down to protect the battery; manual restart required)
DC priority type Switch to mains voltage point when battery voltage is low 44V (adjustable from 42-51V)
After being fully charged, switch back to the battery power supply voltage point 52V (adjustable from 48-58V)
Communication Input Rated AC input voltage AC220V (mains/generator) AC110V (mains/generator)
AC input range 170-280Vac (UPS mode) factory default
90-280Vac (APL electrical mode)
85-140Vac (UPS) factory default
45-140Vac (APL)
Mains undervoltage power-off point 170Vac±5V (UPS mode)
90Vac±5V (APL mode)
85Vac±3V (UPS)
45Vac±3V (APL)
Recovery of mains under-voltage 180Vac±5V (UPS mode)
100Vac±5V (APL mode)
90Vac±3V (UPS)
50Vac±3V (APL)
Mains overvoltage power-down point 280Vac±5V 140Vac±3V
Mains overvoltage recovery point 270Vac±5V 135Vac±3V
AC input frequency 50HZ/60HZ (optional in background)
Frequency range 40-65HZ (recovery points: 42HZ, 63HZ)
Single-mains power on function Available
UPS conversion time <5ms (UPS mode) factory default; <13ms (electrical appliance mode)
AC Output AC output voltage 220/230/240Vac±3% optional 100/110/120Vac±3% optional
AC output frequency 50±1HZ/60±1HZ (optional in background)
Output waveform Pure sine wave (full voltage range)
Waveform distortion rate ≤3% (linear load)
Inverter peak efficiency 95%
Dynamic response (0~100%)≤5%
Power factor >0.9
Peak power (surge capability) 3 seconds at 2 times the rated power
Wasted power (standby) 30W (measured on model 6048, may vary)
Power derating Non-derating (output power does not decrease with battery voltage drop)
Work Environment Noise (1 meter) ≤40dB
Operating ambient temp -40℃~+50℃
Storage environment temp -40℃~+70℃
Humidity 0~90%, no condensation
Use altitude (m) ≤5000 (derate 10% for every 1000m above 1000m)
Continuous running time Continuous long-term operation
Cooling method Temperature-controlled variable-speed fan
Mean time between failures No less than 50,000 hours
Protection Function Insulation strength 1500Vac, no breakdown for 1 minute
Insulation resistance Not less than 2MΩ
Overload protection ≥101% load: shut off after 60s, long buzzer alarm
≥120% load: shut off after 10s, long buzzer alarm
≥140% load: shut off after 3s, long buzzer alarm
Bypass mode ≥140% load: shut off after 10s, long buzzer alarm
(Auto recovery within 30s after load drops below 100%)
Short circuit protection Yes, output shutdown (checks recovery every 30 seconds)
Over temperature protection Yes, output shutdown (checks recovery every 160 seconds)
Fan fault protection Available
AC input overvoltage protection Yes (self-recovery)
AC input undervoltage protection Yes (self-recovery)
Input frequency overrun protection Yes (self-recovery)
Battery overvoltage protection Yes (self-recovery)
Battery low voltage protection Yes (self-recovery)
Alarm method Buzzer alarm + screen fault display
Size 1-2KW 3-4KW 5-6KW 8-12KW
Standard rack-mount 1U Standard rack-mount 2U Standard rack-mount 2U Standard rack-mount 3U
390*349*44mm 420*416*88mm 420*445*88mm 436*487*132mm
Power 1KW 2KW 3KW 4KW 5KW 6KW 8KW 10KW 12KW
Net weight (kg) 4.5 4.5 11 12 13 13 17 17 17
Gross weight (kg) 5 5 12 13 14 14 19 19 19
Key Selling Points

Efficient Single Output Inverter

Optimized for industrial air conditioning and specialized vehicles. Reaches an energy efficiency rate of up to 91% for stable conversion performance.

Ultra-Quiet & Stable

Operates under a quiet 40dB noise floor. Pure sine wave output ensures minimal electrical interference for delicate telecom machinery.

Durable Rack-mount Build

Standard 1U/2U/3U form factor tailored to cabinet installations. Built to withstand challenging industrial environments with light space footprint.

Smart Communication Protocol

Features RS485 Modbus protocol connectivity and option for network configuration, allowing real-time monitoring and seamless host integration.

High-Precision Frequency Output

Maintains high-precision 50Hz/60Hz frequency control for critical grid coordination and accurate load protection across configurations.

Factory & Production
Production Facility Visual
Quality Inspection Visual
Assembly Workshop
Installation Site
Rack-mount Inverter Installation Example
Frequently Asked Questions
What is your quality assurance and control process?

We maintain high standards by conducting pre-production sample evaluation before embarking on mass manufacturing, followed by a rigorous final inspection on all units prior to dispatch.

What core products are available in your catalog?

Our technical lineup includes telecom rectifiers, integrated telecom power systems, dedicated telecom inverters, DC-to-DC converters, and specialized battery charging systems.

Why should we source from you rather than other suppliers?

With over 15 years of active manufacturing experience, we specialize in high-efficiency telecom power systems, parallel inverter set-ups, and customized OEM/ODM builds designed to match specific technical specifications.

What shipping terms and currencies do you support?

We support diverse international delivery options (FOB, CFR, CIF, EXW, DDP, DDU, Express) and process payments in multiple currencies including USD, EUR, HKD, GBP, and CNY via Wire Transfer, PayPal, and Credit Cards.

What kind of built-in system protection does the inverter feature?

The system features intelligent multi-stage protection, including short-circuit shutdown, auto-recovering over-temperature limits, input over/under voltage safety, and comprehensive overload cut-offs.

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