Part number
6EP4438-7FB00-3DX0
Model no
SEL1200
$241.16 In stock · 50+ Dispatch Planned dispatch date. We aim to ship within 1 business day. Depending on warehouse workload it can take 2–3 business days. · From Türkiye

Siemens 6EP4438-7FB00-3DX0 SITOP SEL1200 8x2-10A Power Supply Selectivity Module

SITOP SEL1200 8-channel selectivity module, 24V DC/60A input, 8x2-10A adjustable outputs, DIN rail.

Rated current
10 A
Rated operational voltage
24 V AC
Motor power
18 W kW
EAN
4025515155270
Description

About the SEL1200

Siemens 6EP4438-7FB00-3DX0 is a SITOP SEL1200 8-channel selectivity module that splits a single 24 V DC, 60 A supply into eight individually protected 2-10 A outputs, each adjustable via potentiometer. It isolates a fault on one branch circuit without tripping the upstream supply, using a three-color LED per output and a floating signal contact for remote diagnostics.

Certifications & Standards

  • CE
  • UL 2367
  • cULus (UL 508)
  • UKCA
  • EAC
  • CB
  • DNV
  • EPD

Selection Notes

Each of the 8 outputs trips independently on overcurrent (Iout greater than 2.0x set value clears in about 30 ms; Iout greater than 1.0x set value clears in about 5 s), so a shorted branch drops only that channel instead of pulling down the shared 24 V bus - pick this over a single large-frame breaker when a machine has multiple independent 24 V DC sub-circuits that must fail separately. The per-channel threshold is field-adjustable 2-10 A via potentiometer, so the same module covers mixed loads (sensors on 2 A, valve banks on 8-10 A) without needing separate fixed-current modules. A DIN-rail width of only 45 mm keeps cabinet footprint small for 8 protected outputs.

Applications

Used downstream of a bulk 24 V DC power supply to give each machine zone, sensor group, or actuator bank its own selectively protected output, so a single shorted branch does not shut down the whole control cabinet.

Specification

Full specification

89 values · Last verified 01 Nov 2026

General information 4

product brand name SITOP
product type designation SEL1200
product designation SITOP Selectivity module
type of current supply selectivity module, 8 x 2 ... 10 A com. sign. contact or diagnostics monitor

Input 5

type of the power supply network Controlled DC voltage
supply voltage at DC rated value 24 V
input voltage at DC 20.4 ... 30 V
overvoltage overload capability 35 V
input current at rated input voltage 24 V rated value 60 A

Output 10

voltage curve at output controlled DC voltage
formula for output voltage Vin - approx. 0.2 V
relative overall tolerance of the voltage note In accordance with the supplying input voltage
number of outputs 8
output current up to 60 °C per output rated value 10 A; +60 ... +70 °C: Derating 2%/K
adjustable current response value current of the current-dependent overload release 2 ... 10 A
type of response value setting via potentiometer
response delay maximum 5 s
product feature parallel switching of outputs Yes
type of outputs connection switch-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
Show all 89 specifications ↓ Show less ↑70 more values in Identification, Efficiency, Switch-off characteristic, Safety, Standards, specifications, approvals, Standards, specifications, approvals hazardous environments, Standards, specifications, approvals marine classification, Standards, specifications, approvals Environmental Product Declaration, Ambient conditions, Connection method, Mechanical data, Further information internet links, Additional information, Logistics.

Identification 10

Part number 6EP4438-7FB00-3DX0
Type designation SEL1200
Brand Siemens
Condition New, factory sealed
Source Siemens and its authorised distributors
Warranty Manufacturer warranty
Lifecycle status Active, in production
EAN 4025515155270
ETIM class EC001440
eCl@ss 27371802

Efficiency 2

efficiency in percent 98 %
power loss [W] at rated output voltage for rated value of the output current typical 18 W

Switch-off characteristic 7

switching characteristic: of the excess current Iout > 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
switching characteristic: of the immediate switch-off Iout > set value and Vin < 20 V, switch-off after approx. 8 ms
design of the reset device/resetting mechanism via sensor per output
remote reset function protection and monitoring non-isolated 24 V input (signal level "high" at > 15 V)
fuse protection type at input 16 A per output (not accessible)
display version for normal operation Three-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 function Floating common signal contact or status signal output (pulse/pause signal that can be evaluated via SIMATIC function block)

Safety 6

galvanic isolation between input and output at switch-off No
standard for safety according to EN 62368-1
operating resource protection class Class III
protection class IP IP20
standard: for emitted interference EN 61000-6-3
standard: for interference immunity EN 61000-6-2

Standards, specifications, approvals 6

certificate of suitability: CE marking Yes
certificate of suitability: UL approval Yes; UL-Recognized (UL 2367) File E328600; cULus-Listed (UL 508, CSA C22.2 No. 107.1) File E197259
certificate of suitability: UKCA marking Yes
certificate of suitability: EAC approval Yes
type of certification: CB-certificate Yes
MTBF at 40 °C 925 000 h

Standards, specifications, approvals hazardous environments 2

certificate of suitability: IECEx No
certificate of suitability: ATEX No

Standards, specifications, approvals marine classification 2

shipbuilding approval Yes
Marine classification association: Det Norske Veritas (DNV) Yes

Standards, specifications, approvals Environmental Product Declaration 6

Environmental Product Declaration Yes
global warming potential [CO2 eq]: total 506.7 kg
global warming potential [CO2 eq]: during manufacturing 13.1 kg
global warming potential [CO2 eq]: during operation 493.2 kg
global warming potential [CO2 eq]: after end of life 0.3 kg
Siemens eco profile (SEP) Siemens EcoTech

Ambient conditions 4

ambient temperature: during operation -40 ... +70 °C; with natural convection
ambient temperature: during transport -40 ... +85 °C
ambient temperature: during storage -40 ... +85 °C
environmental category according to IEC 60721 Climate class 3K3, 5 ... 95% no condensation

Connection method 5

type of electrical connection Push-in
at input 24V1, 24V2: push-in for 0.5 ... 16 mm2; 0V1, 0V2: push-in for 0.5 ... 4 mm2
at output Output 1 ... 8: push-in for 0.5 ... 4 mm2
for auxiliary contacts RST: push-in for 0.2 ... 1.5 mm2
for signaling contact 13, 14: push-in for 0.2 ... 1.5 mm2

Mechanical data 11

width × height × depth of the enclosure 45 × 135 × 125 mm
installation width × mounting height 45 mm × 225 mm
required spacing: top 45 mm
required spacing: bottom 45 mm
required spacing: left 0 mm
required spacing: right 0 mm
fastening method Snaps onto DIN rail EN 60715 35x7.5/15
DIN-rail mounting Yes
S7 rail mounting No
wall mounting No
housing can be lined up Yes

Additional information 1

other information Specifications at rated input voltage and ambient temperature +25 °C (unless otherwise specified)

Logistics 7

Net weight 0.3 kg
Package dimensions 145 × 135 × 55 mm
Country of origin Romania
Shipping weight 0.8 kg
Ships from Türkiye
Dispatch 13 Nov
Stock In stock

Source: manufacturer data · Last verified: 01 Nov 2026

Documents

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Certifications

Certifications and standards

  • CE
  • CE marking
  • UKCA marking
  • EAC approval
  • CB-certificate
  • shipbuilding approval
  • Det Norske Veritas (DNV)
  • Environmental Product Declaration
Quick answers

Questions about the SEL1200

What is the rated current of SEL1200?

The rated current of SEL1200 is 10 A.

Which supply voltage is SEL1200 rated for?

The rated operational voltage of SEL1200 is 24 V AC.

What motor power is SEL1200 rated for?

The rated motor power of SEL1200 is 18 W kW.

What is the HS code of SEL1200 for customs?

The tariff (HS) code on file for SEL1200 is 85363010.

What is the EAN of SEL1200?

The EAN (GTIN) of SEL1200 is 4025515155270.

Where does SEL1200 ship from, and how fast?

SEL1200 ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival. Stock items are dispatched within 1–2 business days.

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Series

Siemens SITOP SEL1200

Brand
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Series
SITOP SEL1200
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SEL1200

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Siemens · 6EP4438-7FB00-3DX0

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Warranty
The manufacturer's warranty applies.
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