General information
product brand nameSITOP
product type designationPSU3400
product designationPower supply SITOP DC-DC converter
type of current supply24 V/2.5 A
input
type of the power supply network1-phase AC or DC
phase number1
voltage curve at inputAC/DC
minimum rated value120 V
maximum rated value240 V
initial value88 V
full-scale value264 V
supply voltage at ACStartup as of 18 V
supply voltage at DC24 V
input voltage at DC18 ... 264 V
at 50 Hz230 V
at 60 Hz120 V
line frequency50/60 Hz
line frequency47 ... 63 Hz
wide range inputYes
overvoltage overload capability-
buffering time for rated value of the output current in the event of power failure minimum5 ms
operating condition of the mains bufferingat Vin rated
at rated input voltage 24 V1.9 A
current limitation of inrush current at 25 °C maximum15 A
I2t value maximum0.09 A²·s
fuse protection type15 A (not accessible), breaking capacity 100 A
fuse protection type in the feederRecommended miniature circuit breaker: 16 A characteristic B or C
output
voltage curve at outputControlled, isolated DC voltage
product function output voltage controlledYes
product function output voltage stabilizedYes
output voltage at DC rated value24 V
at output 1 at DC rated value24 V
at output 1 at DC24 V
output voltage adjustableYes; via potentiometer
adjustable output voltage24 ... 28 V
relative overall tolerance of the voltage1 %
on slow fluctuation of input voltage0.1 %
on slow fluctuation of ohm loading0.2 %
maximum150 mV
typical30 mV
maximum250 mV
typical70 mV
display version for normal operationGreen LED for 24 V OK
behavior of the output voltage when switching onNo overshoot of Vout (soft start)
response delay maximum0.5 s
typical10 ms
maximum20 ms
rated value2.5 A
rated range0 ... 3.5 A; +60 to +70 °C: without derating
supplied active power typical85 W
bridging of equipmentYes
number of parallel-switched equipment resources for increasing the power2
efficiency
efficiency in percent85 %
at rated output voltage for rated value of the output current typical7 W
during no-load operation maximum1.5 W
closed-loop control
relative control precision of the output voltage with rapid fluctuation of the input voltage by +/- 15% typical0.3 %
relative control precision of the output voltage load step of resistive load 50/100/50 % typical2 %
load step 50 to 100% typical1 ms
load step 100 to 50% typical1 ms
protection and monitoring
design of the overvoltage protectionUa < 35 V
property of the output short-circuit proofYes
design of short-circuit protectionElectronic shutdown, automatic restart
typical3.8 A
display version for overload and short circuitLED yellow for "overload"
safety
galvanic isolation between input and outputYes
galvanic isolationOutput voltage: SELV, ES1 (IEC 62368-1), DVC As (IEC 61204-7)
operating resource protection classClass III
protection class IPIP20
EMC
for emitted interferenceEN 61000-6-3
for mains harmonics limitationnot applicable
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
UKCA markingYes
EAC approvalNo
Regulatory Compliance Mark (RCM)Yes
NEC Class 2No
CB-certificateYes
MTBF at 40 °C1 934 648 h
standards, specifications, approvals hazardous environments
IECExNo
ATEXNo
ULhazloc approvalNo
FM registrationNo
standards, specifications, approvals marine classification
shipbuilding approvalNo
American Bureau of Shipping Europe Ltd. (ABS)No
French marine classification society (BV)No
Det Norske Veritas (DNV)No
Lloyds Register of Shipping (LRS)No
ambient conditions
during operation-25 ... +70 °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 inputL, N, FE: 1 screw terminal each for 0.5 ... 2.5 mm² single-core/finely stranded
at output+, -: 2 screw terminals each for 0.5 ... 2.5 mm²
mechanical data
width × height × depth of the enclosure32 × 100 × 100 mm
installation width × mounting height32 mm × 200 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 weight0.32 kg
accessories
electrical accessoriesBuffer module
additional information
other informationSpecifications at rated input voltage and ambient temperature +25 °C (unless otherwise specified)