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Siemens 5SY6304-7 Miniature Circuit Breaker 400 V, 6kA, 3‑Pole, C‑Type, 4A, D=70 mm
Siemens 5SY6304-7 Miniature Circuit Breaker 400 V, 6kA, 3‑Pole, C‑Type, 4A, D=70 mm
Siemens 5SY6304-7 Miniature Circuit Breaker 400 V, 6kA, 3‑Pole, C‑Type, 4A, D=70 mm
Siemens 5SY6304-7 Miniature Circuit Breaker 400 V, 6kA, 3‑Pole, C‑Type, 4A, D=70 mm
Siemens 5SY6304-7 Miniature Circuit Breaker 400 V, 6kA, 3‑Pole, C‑Type, 4A, D=70 mm
Siemens 5SY6304-7 Miniature Circuit Breaker 400 V, 6kA, 3‑Pole, C‑Type, 4A, D=70 mm

SIEMENS

Siemens 5SY6304-7 Miniature Circuit Breaker 400 V, 6kA, 3‑Pole, C‑Type, 4A, D=70 mm Original Brand New

Model / SKU5SY6304-7

High-performance 3-pole Miniature Circuit Breaker (MCB) designed for 400V systems. Featuring a 4A rated current and a C-type tripping characteristic, it provides reliable protection for electrical circuits against overloads and short circuits with a 6kA breaking capacity.

Original price was: $110.41.Current price is: $57.39.
In stockShips in 1–3 business days
  • ConditionOriginal Brand New
  • Warranty12 months
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Description

Overview

The Siemens 5SY6304-7 belongs to the premier SENTRON series of protection devices. Specifically engineered for industrial and commercial applications, this MCB ensures maximum safety and system availability. With a compact mounting depth of 70 mm, it integrates seamlessly into standard distribution boards and control cabinets.

Key Benefit

  • Enhanced Safety: Provides superior protection for cables and systems against thermal overload and short-circuit faults.

  • Reliable Performance: The C-tripping characteristic is ideal for circuits with higher inrush currents, such as motors and lighting groups.

  • Compact Design: The 70 mm installation depth saves valuable space in electrical enclosures.

  • Global Standards: Fully compliant with international safety standards for industrial use.

Function

  • Short-Circuit Protection: Immediate disconnection in the event of a high-current fault (6kA capacity).

  • Overload Protection: Delayed tripping to prevent damage from sustained over-current.

  • Manual Switching: Ergonomic handle allows for easy manual isolation of the circuit for maintenance.

Technical Specification

  • Part Number: 5SY6304-7

  • Number of Poles: 3-Pole

  • Tripping Curve: C-Characteristic

  • Rated Current: 4 Ampere

  • Operating Voltage: 400 V AC

  • Breaking Capacity: 6 kA

  • Dimensions: 70 mm depth

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Datasheet in PDF

Specifications

SKU / Model5SY6304-7
BrandSIEMENS
product brand nameSENTRON
product designationMiniature circuit breaker
number of poles3
design of pole3P
tripping characteristic classC
mechanical service life (switching cycles) / typical10 000
overvoltage categoryIII
degree of pollution3
type of voltage / of the operating voltageAC
insulation voltage (Ui)-
● with single-phase operation / at AC / rated value440 V
● with multi-phase operation / at AC / rated value440 V
supply voltage / with single-phase operation / at AC / rated value230 V
supply voltage-
operating voltage / at DC / rated value / maximum72 V
protection class IPIP20, with connected conductors
switching capacity current-
● at DC / acc. to IEC 60947-2 / rated value15 kA
● acc. to EN 60898 / rated value6 kA
● acc. to IEC 60947-2 / rated value30 kA
energy limitation class3
power loss [W] / for rated value of the current / at AC / in hot operating state / per pole1.3 W
operational current-
● at 35 °C / rated value4 A
● at 45 °C / rated value3.71 A
● at 50 °C / rated value3.61 A
● at 55 °C / rated value3.5 A
● at AC / rated value4 A
suitability for operationMechanical engineering / industry
product component / neutral conductor switchingNo
product feature / touch protectionYes
product component-
● combined terminal topYes
● combined terminal bottomYes
product feature-
● properties for main switches in accordance with EN 60204-1Yes
● halogen-freeYes
● sealableYes
● silicon-freeYes
product extension / installable / supplementary devicesYes
breaking capacity short-circuit current (Icn)-
● at AC / acc. to UL 1077 and CSA C22.2 No.2355 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 cordAny
installation depth70 mm
number of modular width units3
fastening methodQuick assembly system
mounting positionany
influence of the surrounding temperaturemax. 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
● maximum75 °C
number of test cycles / for environmental testing / acc. to IEC 60068-2-306
reference code-
● acc. to DIN EN 61346-2F
● acc. to IEC 81346-2F
Weight0.461 kg
Dimensions58.00 × 94.00 × 84.00 mm

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