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SIEMENS

Siemens 5SY4325-8 Miniature Circuit Breaker 3-Pole, 25A, Type D, 10kA, 400V Original Brand New

Model / SKU5SY4325-8

High-performance 3-pole Miniature Circuit Breaker designed for industrial and commercial electrical protection. Featuring a 25A current rating and Type D tripping characteristic, it provides robust defense against short circuits and overloads in systems with high inrush currents.

Original price was: $147.79.Current price is: $76.82.
In stockShips in 1–3 business days
  • ConditionOriginal Brand New
  • Warranty12 months
  • Genuine Products
  • Up to 1-Year Warranty
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Description

Overview

The Siemens 5SY4 series of miniature circuit breakers are engineered for reliability and safety. The 5SY4325-8 model is specifically built to handle demanding electrical environments, offering a high breaking capacity of 10kA. With its compact 70mm mounting depth and 3-pole configuration, it is the ideal solution for protecting three-phase motors, transformers, and solenoid valves.

Key Benefit

  • Enhanced Safety: Provides reliable disconnection in the event of a fault, protecting both personnel and equipment.

  • Type D Characteristic: Optimized for circuits with high inductive loads and significant starting peaks.

  • Space-Saving Design: Standard 70mm depth ensures easy integration into distribution boards and control cabinets.

  • Durability: Built to Siemens’ rigorous quality standards for a long operational lifespan.

  • Easy Installation: Features ergonomic terminals for secure and fast wiring.

Function & Features

  • Pollarity: 3-Pole (3P) for simultaneous switching of three phases.

  • Tripping Class: Type D (Trips at 10 to 20 times the rated current).

  • Breaking Capacity: Up to 10kA according to EN 60898-1.

  • Voltage Rating: Optimized for 400V AC applications.

  • Mounting: Standard DIN rail mounting for universal compatibility.

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Datasheet in PDF

Specifications

SKU / Model5SY4325-8
BrandSIEMENS
product brand nameSENTRON
product designationMiniature circuit breaker
design of the productFor railway applications
number of poles3
design of pole3P
tripping characteristic classD
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-
operating voltage / at DC / rated value / maximum72 V
protection class IPIP20, with connected conductors
switching capacity current-
● acc. to EN 60898 / rated value10 kA
power loss [W] / for rated value of the current / at AC / in hot operating state / per pole2.1 W
operational current-
● at 35 °C / rated value25 A
● at 40 °C / rated value23.5 A
● at 45 °C / rated value22.72 A
● at 50 °C / rated value21.9 A
● at 55 °C / rated value21.05 A
● at 60 °C / rated value20.18 A
● at AC / rated value25 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 60204-1No
● halogen-freeYes
● sealableYes
● silicon-freeYes
product extension / installable / supplementary devicesYes
connectable conductor cross-section / solid-
connectable conductor cross-section / stranded-
connectable conductor cross-section / finely stranded / with core end processing-
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 60068-2-3028
reference code-
● acc. to DIN EN 61346-2F
● acc. to IEC 81346-2F
Weight0.477 kg
Dimensions58.00 × 94.00 × 84.00 mm

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