J. Schneider AKKUTEC 2420 3ph

J Schneider AKKUTEC 2420 3ph, The battery buffered DC power supply of the series AKKUTEC is working according the stand-by parallel mode and ensures in connection with a lead-acid accumulator a safe continuous DC power supply in case of mains failure.

The power supply has the following features:

Primary switched power supply with I/U-charging characteristics
active power factor correction (PFC)
Battery management by micro-controller
Battery voltage tracking of the charging voltage by external sensor module (optional)
Display- and control panel for mount in cabinet door or module (optional)
redundant operation or Master-/Slave-operation possible

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J Schneider AKKUTEC 2420 3ph Technical Data

Nominal input voltage	3 x 400 – 500 V AC -15% +10%
Nominal frequency	45 – 65 Hz
System voltage	24 V DC
Output voltage(depending on state of Charge of the battery) voltage range – with temperature tracking – without temperature tracking	19,8 V DC – 27,8 V DC 19,8 V DC – 26,8 V DC
Nominal utput current	20 A at 100% ED
Protective system	IP 20
safe separation (safe separation between input and output)	acc. EN61558-2-17
operational temperature	0 – 40 °C
short circuit protection	electronic, short-circuit-proof output
Battery	external
Battery fuse	external
back-up time	depending on battery
charging characteristics	I/U DIN 41773 part 1
Opt.	temperature tracking boost Charge via control contact (up to 28,6V)
final charging voltage without temp.- sensor with temp.- sensor at 25°	26,8 V DC ± 0,4% 27,8 V DC ± 0,4%
charging current at 100% load	2 A
charging current at 0% load	22 A
deep discharge protection	load rejection at battery voltage ≤ 19,8 V
LED-display	mains / battery operation ‘Netz OK’ LED green General error ‘Fehler’ LED yellow battery voltage within LED green battery voltage above LED green
Relays-outputs	mains/UPS-operation 0,5 A /30 V DC General error 0,5 A /30 V DC voltage above 0,5 A /30 V DC voltage within 0,5 A /30 V DC
control inputs referring to earth on +24VDC	Shut down boost charge
Special features	active current share at Master – Slave respectively redundant Operation with CS bus time function (load rejection after adjustable back-up time)
expandable	In 20 A steps Master/Slave
active PFC	harmonic ripple at input according to EN 61000-3-2 PF ~ 0,99
Batterymanagement	Batterymanagement with internal micro controler, battery circuit control control battery circuit/battery fuse each 60 sec.
Real battery power measurement	battery load test during operation. (load of the battery with simultaneous voltage measurement) each 24h
EMI-regulations	EN 55011/ 1998 class A Group1 EN 50082-1/1.92 EN 50178
type of construction	module
connectionprimary secondary Ua Secondary batt	with terminals 2,5 mm² 6 mm² 4 mm²
dimensions	101 x 241 x 244 mm (B x H x T)
weight	2,6 kg
Options
control and Display panel	well readable, 20-digit, 2-line Alpha numeric LC-Display with back-ground illumination separate possible adjustements for contrast and brightness supply and data Transfer with 2 wire bus, thus low wiring activity necessary reading and writing of charging and control parameters display of status messages in plain text acoustic Signal for warnings respectively Errors (deactivatable) possibility of Display of the operational data, for redundant systems also with only one Panel possible. easy user prompting 3-button operation protection of functions by Password Levels suitable for built in cabinet door (protective system IP54)
Temperature tracking	with temperature sensor at terminal strip IO-1 and 2 the charging voltage is automatically adjusted to the environmental conditions (26,8-27,8 V). Overtemperature at the batteries (above 45°C) is displayed and announced.
Shut-down	Abort of the UPS – operation potentialfree gate input Switch level: 24 V DC (6-45 V DC)
Fixation	Mounting bracket for mounting plate
UL approvals	No