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Esser

4XD250B Four-Channel Amplifier

Esser’s 4XD250B Four-channel amplifiers with integrated battery recharging system have 4x250W independent amplifier channels. It gets self-monitoring and self-test by microcontroller. It is protected against overload, short circuit, overheating.

Esser’s 4XD250B Four-channel amplifiers with integrated battery recharging system are used for the emergency power supply to the VARIODYN D1 Comprio. The 4XD250B features 4 independent amplifier channels, each with 250 W, in class D direct drive technology. Due to the fact that all amplifier channels are completely independent from each other, it is possible to use one channel for back up. This could be for the other 3 channels or alternatively for other amplifier channels of other amplifiers with the same or lower output power (only 4XDxxxB and 4XDxxxW models). The amplifier can be used in combination with the VARIODYN D1 Comprio as well as with a DOM.

It is also possible to use the amplifier also with a separate PSU, the internal PSU must be switched of then. It gets self-monitoring and self-test by microcontroller. It is protected against overload, short circuit and overheating.

Features & Benefits:
  • Class D technology, efficiency> = 80 %
  • 4 independent amplifier channels
  • One of four amplifier channels can be used as general back up channel
  • Two Height Unit (2 HU)
  • Ideal for use with the VARIODYN D1 Comprio
  • Self-monitoring and self-test by microcontroller
  • Protected against overload, short circuit and overheating
Certifications:
  • EN 54-4
  • EN 54-16

Others

  • Minimum Transmission Frequency
    • 20 hertz
  • Channels
    • 4
  • Maximum Transmission Frequency
    • 22000 hertz

Others

  • Minimum Transmission Frequency
    • 20 hertz
  • Channels
    • 4
  • Maximum Transmission Frequency
    • 22000 hertz
  • Minimum Transmission Frequency : 20 hertz
  • Channels : 4
  • Maximum Transmission Frequency : 22000 hertz
Installation Instructions
Name
Description
File Size
Date
Size
D1 Voice Alarm Consultant's Specification Guide
1.28 MB
10/20/2021
PDF 1.28 MB
Name
Description
File Size
Date
Size
D1 Voice Alarm Consultant's Specification Guide
1.28 MB
10/20/2021
PDF 1.28 MB
Image
SKU
Description
alt
K580243
Amplifier: 4 Channel: 230V AC: 20-60Hz: -5 to +55C: Gray: Class D