INFOSEC E 3 - Inverter

E 3 - Inverter INFOSEC - Free user manual and instructions

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Product Type Double Conversion Online UPS
Brand INFOSEC
Model E 3 (750-3000 VA range)
Technology High Frequency High Density, pure sine wave
Rated Power 750 VA / 1000 VA / 1500 VA / 2000 VA / 3000 VA (depending on model)
Power Factor 0.7
Dimensions (W x D x H) - 1000 VA model 235 x 383 x 86.2 mm
Weight - 1000 VA model 9.6 kg
Input Voltage 110-127 V or 220-240 V (selectable)
Input Voltage Range (wide mode) 0-160 V (low voltage) or 0-300 V (high voltage)
Output Voltage (battery mode) 110/120/127 V or 220/230/240 V ±5%
Output Frequency 50 or 60 Hz ±1 Hz
Battery Type Maintenance-free lead-acid, 12V (capacity depending on model: 7Ah, 9Ah or 5Ah)
Typical Autonomy (full load) 5 minutes minimum (with battery packs for 1500/2000 VA)
Recharge Time 4 hours to 90% (full discharge)
Built-in Protections Overload, short circuit, excessive temperature, overvoltage, telephone/modem protection RJ11/RJ45
Communication Interfaces USB, RS-232, dry contact (DB9), SNMP option (1500-3000 VA)
Advanced Functions Cold start, emergency power off (EPO on 1500-3000 VA), Auto-test, Normal/Generator/Wide range modes
Maintenance and Cleaning User-replaceable batteries; recharge every 3 months if unused; clean with a dry cloth
Safety Do not open, dangerous internal voltages; disconnect before maintenance; use insulated gloves
Spare Parts and Repairability Replacement batteries, external battery packs (1500-3000 VA), cables, fuses; maintenance by qualified technician
Operating Conditions Temperature 0-40°C, humidity 20-80% non-condensing, indoor use only
Mounting 2U rack or tower (depending on model)
Standards CE (safety/manufacturing)

Frequently Asked Questions - E 3 INFOSEC

What to do if my UPS does not turn on?
Check that the power cable is properly plugged in and the wall outlet is functional. Make sure the battery is not fully discharged. If the internal fuse is blown, contact your dealer.
Why does the UPS beep every 4 seconds?
This beep indicates the UPS is running on battery (battery mode). Check the mains input voltage. If mains is absent, conserve battery.
How to replace the battery of my E 3?
Turn off the UPS and unplug it from mains. Remove the front panel, disconnect the battery connector (red and black wires), remove the old battery and insert the new one respecting polarity. Reconnect and reassemble. Only a qualified technician should perform this operation.
What does the BAD BAT indicator mean?
The BAD BAT indicator flashes every 2 seconds if the battery is faulty or disconnected. Check the battery connection; if it is in good condition, replace the battery.
How to configure the output voltage?
Press the CONFIG button for 3 seconds to enter configuration mode. Use CONFIG to select the voltage (110/120/127V or 220/230/240V), then press ENTER for 3 seconds to confirm.
Can I connect an extra battery pack?
Yes, for models 1500, 2000 and 3000 VA. Connect the battery cable of the pack to the external battery connector at the back of the UPS. You can add multiple packs in series.
How to test the UPS?
Ensure the battery is charged and the UPS is in mains mode. Press the TEST button for 5 seconds to start a self-test. Alarms and indicators will show the result.
What to do in case of overload?
The OVERLOAD indicator lights up and the audible alarm sounds every second. Immediately disconnect non-essential devices to reduce the load. Check that the total load does not exceed the rated power of the UPS.
How to use the EPO (emergency power off) function?
Connect a normally open switch to pins 1 and 2 of the EPO connector (60Vdc/30Vac max, 20mA). Close the switch to immediately cut off power. To restore, open the switch and manually turn the UPS back on.
What to do if the UPS emits a continuous beep?
A continuous beep indicates a UPS fault (e.g., faulty battery, short circuit). Check the audible alarm table. If the problem persists, contact your dealer.

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How to stop the beeping sound of the INFOSEC E 3 inverter?
Frequently Asked Questions - 06/03/2026
Response Notice-Facile

The beeping sound of the INFOSEC E 3 inverter generally serves to signal an alert state or a problem. To stop this beep, here are the steps to follow:

1. Check the status of the inverter

Make sure that the inverter is not signaling an alert such as an overload, a low battery, or another malfunction. The beep may indicate a problem requiring intervention.

2. Use the mute button

If your model is equipped with a mute button (often labeled "Mute" or "Silence"), press it. This button is usually located on the front panel of the inverter and allows you to temporarily silence the beep.

3. Restart the inverter

Unplug the inverter from the electrical outlet, wait a few seconds, then plug it back in. This restart can sometimes reset the sound alerts.

4. Check the operating conditions

  • Ensure that the inverter is not overloaded.
  • Check the status of the internal battery.
  • Confirm that the input voltage is stable.

If the beep persists despite these checks and actions, it may indicate a technical problem requiring specialized intervention.

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Product information

Brand : INFOSEC

Model : E 3

Category : Inverter