General information
product brand nameSITOP
product type designationSEL1200
product designationSITOP Selectivity module
type of current supplyselectivity module, 8 x 2 ... 10 A com. sign. contact or diagnostics monitor
input
type of the power supply networkControlled DC voltage
supply voltage at DC rated value24 V
input voltage at DC20.4 ... 30 V
overvoltage overload capability35 V
input current at rated input voltage 24 V rated value60 A
output
voltage curve at outputcontrolled DC voltage
formula for output voltageVin - approx. 0.2 V
relative overall tolerance of the voltage noteIn accordance with the supplying input voltage
number of outputs8
output current up to 60 °C per output rated value10 A; +60 ... +70 °C: Derating 2%/K
adjustable current response value current of the current-dependent overload release2 ... 10 A
type of response value settingvia potentiometer
response delay maximum5 s
product feature parallel switching of outputsYes
type of outputs connectionswitch-on of all outputs after power-up of the supply voltage > 20 V, delay time of 25 ms, 200 ms, 500 ms, or "load-optimized" via DIP switch configurable for sequential switch-on
efficiency
efficiency in percent98 %
power loss [W] at rated output voltage for rated value of the output current typical18 W
switch-off characteristic
of the excess currentIout > 2.0 x set value, switch-off after approx. 30 ms, Iout > 1.8 x set value, switch-off after approx. 0.1 s, Iout > 1.5 x set value, switch-off after approx. 1 s, Iout > 1.0 x set value, switch-off after approx. 5 s
of the immediate switch-offIout > set value and Vin < 20 V, switch-off after approx. 8 ms
design of the reset device/resetting mechanismvia sensor per output
remote reset functionnon-isolated 24 V input (signal level "high" at > 15 V)
protection and monitoring
fuse protection type at input16 A per output (not accessible)
display version for normal operationThree-color LED per output: green LED for "Output switched through"; yellow LED for "Output switched off manually"; red LED for "Output switched off due to overcurrent"
design of the switching contact for signaling functionFloating common signal contact or status signal output (pulse/pause signal that can be evaluated via SIMATIC function block)
safety
galvanic isolation between input and output at switch-offNo
standard for safetyaccording to EN 62368-1
operating resource protection classClass III
protection class IPIP20
for emitted interferenceEN 61000-6-3
for interference immunityEN 61000-6-2
standards, specifications, approvals
CE markingYes
UL approvalYes; UL-Recognized (UL 2367) File E328600; cULus-Listed (UL 508, CSA C22.2 No. 107.1) File E197259
UKCA markingYes
EAC approvalYes
CB-certificateYes
MTBF at 40 °C925 000 h
standards, specifications, approvals hazardous environments
IECExNo
ATEXNo
standards, specifications, approvals marine classification
shipbuilding approvalYes
Det Norske Veritas (DNV)Yes
standards, specifications, approvals Environmental Product Declaration
Environmental Product DeclarationYes
total506.7 kg
during manufacturing13.1 kg
during operation493.2 kg
after end of life0.3 kg
Siemens eco profile (SEP)Siemens EcoTech
ambient conditions
during operation-40 ... +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 connectionPush-in
at input24V1, 24V2: push-in for 0.5 ... 16 mm²; 0V1, 0V2: push-in for 0.5 ... 4 mm²
at outputOutput 1 ... 8: push-in for 0.5 ... 4 mm²
for auxiliary contactsRST: push-in for 0.2 ... 1.5 mm²
for signaling contact13, 14: push-in for 0.2 ... 1.5 mm²
mechanical data
width × height × depth of the enclosure45 × 135 × 125 mm
installation width × mounting height45 mm × 225 mm
top45 mm
bottom45 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 weight0.3 kg
further information internet links
identification linkYes; acc. to IEC 61406-1:2022
additional information
other informationSpecifications at rated input voltage and ambient temperature +25 °C (unless otherwise specified)