Siemens Miniature Circuit Breaker 400 V 10kA – 5SY4216-8
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.
5SY42168
Siemens 5SY4216-8, Miniature circuit breaker 400 V 10kA, 2-pole, D, 16A, 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
D
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
20 kA
Dissipation
power loss [W] / for rated value of the current / at AC / in hot operating state / per pole
1.6 W
Current
operational current
● at 35 °C / rated value
16 A
● at 45 °C / rated value
14.51 A
● at 50 °C / rated value
13.98 A
● at 55 °C / rated value
13.44 A
● at 60 °C / rated value
12.86 A
● at AC / rated value
16 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
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