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5SY4350-7 Siemens Miniature Circuit Breaker 400 V 10kA Original Brand New

 247.10

  • 5SY4350-7
  • Actuator Type:Toggle
  • Alternate Mfr Part Number:5SY4350-7
  • Characteristic:C Curve
  • Current Rating:50 A
  • Mounting Type:DIN Rail Mount
  • Number of Poles:3 Pole
  • UPC Code:754554842745

Available on backorder

Siemens Miniature Circuit Breaker 400 V 10kA – 5SY4350-7

MCBs from the Siemens SENTRON portfolio meet the enhanced requirements of automated buildings and industrial power supply systems, e.g. in the automotive and semiconductor industry or in data centers. Compared to residential and functional buildings, these are usually more extensive and complex in terms of both network topology and operation. Electricity and production downtimes must be deliberately prevented in these cases using coordinated device combinations if economic losses are to be avoided. Our Siemens MCBs protect wires and cables in cases of short circuit and overloads, and also enable backup protection for switching devices and also semiconductor protection. They are therefore a fundamental component in end-to-end protection concepts for industry and infrastructure.

The right combination

The main purpose of Siemens miniature circuit breakers is to permanently monitor and secure cables and wires in electrical systems. They also help protect humans against electric shocks when used in combination with RCCBs or as combined RCBO. Siemens Breaker combining the 5SY MCB with the 5SM6 arc-fault detection unit (AFDD) further expands the range of functions. An overview of all the combinations is provided below.

5SY43507

Siemens 5SY4350-7, Miniature circuit breaker 400 V 10kA, 3-pole, C, 50 A, D=70 mm

Model
product brand name SENTRON
product designation Miniature circuit breaker
General technical data
number of poles 3
design of pole 3P
tripping characteristic class C
mechanical service life (switching cycles) / typical 10 000
overvoltage category III
degree of pollution 3
Voltage
type of voltage / of the operating voltage AC
insulation voltage (Ui)
● with single-phase operation / at AC / rated value 440 V
● with multi-phase operation / at AC / rated value 440 V
supply voltage / with single-phase operation / at AC / rated value 230 V
Supply voltage
supply voltage
● at AC / rated value 400 V
operating voltage / at DC / rated value / maximum 72 V
Protection class
protection class IP IP20, with connected conductors
Switching capacity
switching capacity current
● at DC / acc. to IEC 60947-2 / rated value 15 kA
● acc. to EN 60898 / rated value 10 kA
● acc. to IEC 60947-2 / rated value 15 kA
energy limitation class 3
Dissipation
power loss [W] / for rated value of the current / at AC / in hot operating state / per pole 3.8 W
Current
operational current
● at 35 °C / rated value 50 A
● at 45 °C / rated value 47 A
● at 50 °C / rated value 45.95 A
● at 55 °C / rated value 44.9 A
● at 60 °C / rated value 43.8 A
● at AC / rated value 50 A
suitability for operation Mechanical engineering / industry
Product details
product component / neutral conductor switching No
product feature / touch protection Yes
product component
● combined terminal top Yes
● combined terminal bottom Yes
product feature
● properties for main switches in accordance with EN 60204-1 Yes
● halogen-free Yes
● sealable Yes
● silicon-free Yes
product extension / installable / supplementary devices Yes
Short circuit
breaking capacity short-circuit current (Icn)
● at AC / acc. to UL 1077 and CSA C22.2 No.235 5 kA
Connections
connectable conductor cross-section / solid
● minimum 0.75 mm²
● maximum 35 mm²
connectable conductor cross-section / stranded
● minimum 0.75 mm²
● maximum 35 mm²
connectable conductor cross-section / finely stranded / with core end processing
● minimum 0.75 mm²
● maximum 25 mm²
AWG number / as coded connectable conductor cross section
● minimum 18
● maximum 4
tightening torque [lbf·in] / with screw-type terminals
● minimum 22 lbf·in
● maximum 31 lbf·in
tightening torque / with screw-type terminals
● minimum 2.5 N·m
● maximum 3.5 N·m
position / of power supply cord Any
Mechanical Design
height 90 mm
width 54 mm
depth 76 mm
installation depth 70 mm
number of modular width units 3
fastening method Quick assembly system
mounting position any
net weight 488 g
Environmental conditions
influence of the surrounding temperature max. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C
vibration resistance / acc. to IEC 60068-2-6 ±1mm at 5 to 25Hz; 50m/s² at 25 to 150Hz
ambient temperature / during operation
● minimum -40 °C
● maximum 70 °C
ambient temperature / during storage
● minimum -40 °C
● maximum 75 °C
number of test cycles / for environmental testing / acc. to IEC 60068-2-30 6
Certificates
reference code
● acc. to DIN EN 61346-2 F
● acc. to IEC 81346-2 F
General Product Approval
General Product Approval EMC Declaration of Conformity Test Certificates Marine / Shipping
Marine / Shipping other Railway
Railway
Further information
Information- and Downloadcenter (Catalogs, Brochures,…)
Industry Mall (Online ordering system)
Service&Support (Manuals, Certificates, Characteristics, FAQs,…)
Image database (product images, 2D dimension drawings, 3D models, device circuit diagrams, …)
CAx-Online-Generator
Tender specifications

5SY4350-7

5SY4350-7

5SY4350-7

5SY4350-7
Date
10/26/2021

Download

DataSheet in PDF

Weight 0.496 kg
Dimensions 58.00 × 94.00 × 84.00 mm
Brand

SIEMENS

product brand name

SENTRON

product designation

Miniature circuit breaker

number of poles

3

design of pole

3P

tripping characteristic class

C

mechanical service life (switching cycles) / typical

10 000

overvoltage category

III

degree of pollution

3

type of voltage / of the operating voltage

AC

insulation voltage (Ui)

● with single-phase operation / at AC / rated value

440 V

● with multi-phase operation / at AC / rated value

440 V

supply voltage / with single-phase operation / at AC / rated value

230 V

supply voltage

operating voltage / at DC / rated value / maximum

72 V

protection class IP

IP20, with connected conductors

switching capacity current

● at DC / acc. to IEC 60947-2 / rated value

15 kA

● acc. to EN 60898 / rated value

10 kA

● acc. to IEC 60947-2 / rated value

15 kA

energy limitation class

3

power loss [W] / for rated value of the current / at AC / in hot operating state / per pole

3.8 W

operational current

● at 35 °C / rated value

50 A

● at 45 °C / rated value

47 A

● at 50 °C / rated value

45.95 A

● at 55 °C / rated value

44.9 A

● at 60 °C / rated value

43.8 A

● at AC / rated value

50 A

suitability for operation

Mechanical engineering / industry

product component / neutral conductor switching

No

product feature / touch protection

Yes

product component

● combined terminal top

Yes

● combined terminal bottom

Yes

product feature

● properties for main switches in accordance with EN 60204-1

Yes

● halogen-free

Yes

● sealable

Yes

● silicon-free

Yes

product extension / installable / supplementary devices

Yes

breaking capacity short-circuit current (Icn)

● at AC / acc. to UL 1077 and CSA C22.2 No.235

5 kA

connectable conductor cross-section / solid

connectable conductor cross-section / stranded

connectable conductor cross-section / finely stranded / with core end processing

AWG number / as coded connectable conductor cross section

tightening torque [lbf·in] / with screw-type terminals

tightening torque / with screw-type terminals

position / of power supply cord

Any

installation depth

70 mm

number of modular width units

3

fastening method

Quick assembly system

mounting position

any

influence of the surrounding temperature

max. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C

vibration resistance / acc. to IEC 60068-2-6

±1mm at 5 to 25Hz; 50m/s² at 25 to 150Hz

ambient temperature / during operation

ambient temperature / during storage

● minimum

-40 °C

● maximum

75 °C

number of test cycles / for environmental testing / acc. to IEC 60068-2-30

6

reference code

● acc. to DIN EN 61346-2

F

● acc. to IEC 81346-2

F

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