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SIEMENS 5ST3010 Miniature Circuit Breaker

SIEMENS 5ST3010 Miniature Circuit Breaker

Manufacturer: Siemens
Model: 5ST3010 Auxiliary Switch
Accessory Type: Auxiliary Switch for MCBs
Suitable Breaker Series: 5SL/5SY/5SP/5SU1/5TE8
Voltage Rating: 230/400–400/480 VAC
Contact Configuration: 1NO + 1NC
Rated Current: 16 A (switch contact load)
Conductor Cross‑Section: 0.5–2.5 mm² (AWG 22–14)

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Product Description

The Siemens 3RV20 Motor Protection Circuit Breaker series is designed for reliable protection and control of motors in industrial environments. These MPCBs provide overload and short-circuit protection, phase failure sensitivity, and adjustable current settings for optimized motor performance. With a compact design and high breaking capacity, the 3RV20 series ensures safety, efficiency, and seamless integration with Siemens contactors and control systems. It is ideal for applications in automation, machinery, and energy distribution.

Standard Features

  • Reliable Signaling: 1NO + 1NC contacts provide precise auxiliary switching feedback

  • Positive Opening Operation: NC contact ensures safety-compliant operation

  • Robust Construction: Durable plastic housing suitable for industrial environments

  • IP20 Protection: Provides dust protection for indoor electrical installations

  • Wide Compatibility: Fits multiple Siemens breaker series including 5SL, 5SY, 5SP, 5SU1, and 5TE8

  • DIN-Rail Mountable: Easy installation on standard DIN rails

  • Long Electrical Life: Rated for reliable performance under repeated switching loads

  • Wide Operating Temperature: Operates effectively from −25 °C to +55 °C

Technical Specifications

 

ModelDescriptionContact ConfigurationVoltage Rating
5ST3010-0HGAuxiliary switch for MCBs and RCBOs, 1NO + 1NC contacts1NO + 1NC230/400–400/480 VAC
5ST3010-0HEAuxiliary switch with extended mechanical life, 1NO + 1NC contacts1NO + 1NC230/400–400/480 VAC
5ST3010-0HFAuxiliary switch suitable for signaling applications, 1NO + 1NC contacts1NO + 1NC230/400–400/480 VAC
5ST3010-0HG1High-reliability auxiliary switch with DIN-rail mounting1NO + 1NC230/400–400/480 VAC
5ST3010-0HG2Auxiliary switch for compact and standard MCBs1NO + 1NC230/400–400/480 VAC

 

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