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8 Channel 8 V/12 A Full Floating Channel Board

A2551

Home Power SupplyUniversal Multichannel SystemLow Voltage Boards A2551

The power supply A2551 is a single width board (5 TE wide) that houses 8 independent Low Voltage Individual Full Floating channels, compatible with the CAEN Universal Multichannel Power Supply System (SY4527, SY5527). The A2551 is available in different versions equipped with D-Sub 8-pin or with DB37 connector:

DB37 connector

Single width (5 TE wide), 8 channels for Mod. A2551A

D-Sub 8W8 – 8 pin high current connector

Single width (5 TE wide), 8 channels for Mod. A2551

Consult our connectors reference page for technical information.

A2551 Individual Floating channels allow on-detector grounding, reducing the noise level. The floating channels are insulated from each other up to ยฑ500 V. Each output channel is provided with individual remote sensing lines to compensate for the voltage drop over the connection cables.

The output voltage range is 0 รท 8 V, with 0.2 mV monitor resolution (connector and sense voltages). The maximum output current is 12 A with 500 ฮผA monitor resolution. The Maximum channel power is 60 W. The Output Voltage RAMP UP and RAMP DOWN Times may be selected independently for each channel in 1 รท 500 V/s range (1 V/s step).

Safety features allows the module to perform as a current generator and includes:

Overvoltage detection

if a channel voltage exceeds the programmed Overvoltage threshold value (OVVThr), it is signaled to be in โ€œovervoltageโ€ and is switched off.

Undervoltage detection

if a channel voltage decreases below the programmed undervoltage threshold (UNVThr), it is signaled to be in โ€œundervoltageโ€ and is switched off.

Overcurrent detection

if a channel tries to draw a current larger than its programmed limit, it is signalled to be in โ€œovercurrentโ€; when overcurrent is detected, the relevant channel can be programmed either to turn off after a programmable trip time or to keep on providing the maximum allowed current: this feature allows the module to work as current generator.

A global enable/disable connector

allows to disable the channels and it is also possible, via front panel logic signals, to enable individually each channel (A2551A only).


Features

  • 8 independently controllable Low Voltage channels

  • 0รท8 V output voltage and 12 A maximum current (60 W)

  • Individual Floating Channels

  • DB37 or 8 pin D-Sub connectors

  • Individual remote sense lines (A2551A only)

  • Low ripple

  • Under/over-voltage alert, overcurrent and max. voltage protection

  • Interlock logic for unit enable

  • Software Tool for easy channel management


Ordering Options

Code Description
WA2551AXAAAA

A2551A – individual floating 8 ch 8 V/12 A (60 W) board – DB37 conn.

 

(In production)

RoHS
WA2551XAAAAA

A2551 – individual floating 8 ch 8 V/12 A (60 W) board

 

(In production)

RoHS
WPERSXXA2551

A2551 parallel channel customization

 

(In production)

RoHS
Manual Compare

A2551: Manuals

Name
Revision
Format
File Size
Last Update
A255x - individual floating 8 ch 60 W LV board
7
pdf
1.51 Mb
15/12/2025

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