General information
product brand nameSITOP
product type designationDC UPS
type of current supplyDC UPS 24 V/40 A
input
voltage curve at inputDC
supply voltage at DC rated value24 V
input voltage at DC22 ... 29 V
adjustable response value voltage for buffer connection preset22.5 V
adjustable response value voltage for buffer connection22 ... 25.5 V; Adjustable in 0.5 V increments
input current at rated input voltage 24 V rated value40 A; + approx. 2.6 A with empty battery
memory
type of energy storagewith batteries
product function DC-UPS modularly expandableYes
design of the mains power cut bridging-connectionDependent on connected battery and load current, see selection table battery module and mains buffering times as well as the relevant important information notes!
output
in normal operation at DC rated value24 V
in buffering mode at DC rated value24 V
formula for output voltageVin - approx. 0.5 V
startup delay time typical1 s
voltage increase time of the output voltage typical360 ms
output voltage in buffering mode at DC19 ... 28.5 V
rated value40 A
in normal operation0 ... 40 A
in buffering mode0 ... 40 A
peak current42 A
charging current1 A, 2 A
efficiency
at rated output voltage for rated value of the output current typical97.2 %
in case of operation on rechargeable battery typical96.9 %
at rated output voltage for rated value of the output current typical28.6 W
in case of operation on rechargeable battery typical33.6 W
supplied active power typical960 W
protection and monitoring
reverse polarity protection against energy storage unit polarity reversalYes
reverse polarity protection against input voltage polarity reversalYes
for normal operationNormal operation: LED green (OK), floating changeover contact "Bat/OK" to setting "OK" ("OK" means: Voltage of the supplying power supply unit is greater than cut-in threshold set at the DC UPS module); Lack of buffer standby: LED red (alarm), floating changeover contact "Alarm/Bat" to setting "Alarm"; Battery replacement required: LED red (alarm) flashing with approx. 0.25 Hz, floating changeover contact "Alarm/Bat" switching with approx. 0.25 Hz; Energy storage > 85%: LED green (Bat > 85%), floating NOcontact "Bat > 85" closed; Permissible contact current capacity: DC 60 V/1 A or AC 30 V /1 A
in buffering modeBuffered mode: LED yellow (Bat), floating changeover contact "OK/Bat" to setting "Bat"; Prewarning battery voltage < 20.4 VDC: LED red (alarm), floating changeover contact "Alarm/Bat" to setting "Alarm"; Energy storage > 85%: LED green (Bat > 85%), floating NO contact "Bat > 85" closed
interfaces
product component PC interfaceNo
product function communication functionNo
design of the interfacewithout
safety
galvanic isolation between input and outputNo
operating resource protection classClass III
protection class IPIP20
for emitted interferenceEN 55022 Class B
for interference immunityEN 61000-6-2
standards, specifications, approvals
CE markingYes
UL approvalYes; cULus-Listed (UL 508, CSA C22.2 No. 107.1), File E197259
EAC approvalYes
MTBF at 40 °C522 739 h
standards, specifications, approvals marine classification
shipbuilding approvalYes
American Bureau of Shipping Europe Ltd. (ABS)Yes
Det Norske Veritas (DNV)Yes
standards, specifications, approvals Environmental Product Declaration
Environmental Product DeclarationYes
total898.2 kg
during manufacturing45.1 kg
during operation851.9 kg
after end of life0.84 kg
ambient conditions
during operation-25 ... +60 °C; with natural convection
during transport-40 ... +85 °C
during storage-40 ... +85 °C
environmental category according to IEC 60721Climate class 3K3, 5 ... 95% no condensation
connection method
type of electrical connectionscrew terminal
at input24 V DC: 2 screw terminals for 0.33 ... 10 mm²/22 ... 7 AWG
at output24 V DC: 2 screw terminals for 0.33 ... 10 mm²/22 ... 7 AWG
for rechargeable battery module24 V DC: 2 screw terminals for 0.33 ... 10 mm²/22 ... 7 AWG
for control circuit and status message10 screw terminals for 0.5 ... 2.5 mm²/20 ... 13 AWG
mechanical data
width × height × depth of the enclosure102 × 125 × 125 mm
installation width × mounting height102 mm × 225 mm
top50 mm
bottom50 mm
left0 mm
right0 mm
fastening methodSnaps onto DIN rail EN 60715 35x7.5/15
DIN-rail mountingYes
S7 rail mountingNo
wall mountingNo
housing can be lined upYes
net weight1.1 kg
accessories
electrical accessoriesBattery module
additional information
other informationSpecifications at rated input voltage and ambient temperature +25 °C (unless otherwise specified)