5SY4205-7 Siemens Miniature Circuit Breaker 400 V 10kA Original Brand New

Siemens Miniature Circuit Breaker 400 V 10kA – 5SY4205-7

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.

5SY42057

Siemens 5SY4205-7, Miniature circuit breaker 400 V 10kA, 2-pole, C, 0.5A, D=70 mm

Model
product brand name		SENTRON
product designation		Miniature circuit breaker
General technical data
number of poles		2
design of pole		2P
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		35 kA
energy limitation class		3
Dissipation
power loss [W] / for rated value of the current / at AC / in hot operating state / per pole		0.8 W
Current
operational current
● at 35 °C / rated value		0.5 A
● at 40 °C / rated value		0.47 A
● at 45 °C / rated value		0.45 A
● at 50 °C / rated value		0.44 A
● at 55 °C / rated value		0.42 A
● at 60 °C / rated value		0.4 A
● at AC / rated value		0.5 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		36 mm
depth		76 mm
installation depth		70 mm
number of modular width units		2
fastening method		Quick assembly system
mounting position		any
net weight		320 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 Miscellaneous KC General Product Approval EMC Declaration of Conformity Test Certificates Marine / Shipping Miscellaneous Special Test Certificate Marine / Shipping other Railway Miscellaneous Confirmation Railway Vibration and Shock
Further information
Information- and Downloadcenter (Catalogs, Brochures,…) http://www.siemens.com/lowvoltage/catalogs
Industry Mall (Online ordering system) https://mall.industry.siemens.com/mall/en/en/Catalog/product?mlfb=5SY4205-7
Service&Support (Manuals, Certificates, Characteristics, FAQs,…) https://support.industry.siemens.com/cs/ww/en/ps/5SY4205-7
Image database (product images, 2D dimension drawings, 3D models, device circuit diagrams, …) http://www.automation.siemens.com/bilddb/cax_en.aspx?mlfb=5SY4205-7
CAx-Online-Generator http://www.siemens.com/cax
Tender specifications http://www.siemens.com/specifications
Date 10/26/2021

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DataSheet in PDF