Siemens Auxiliary current switch, 1 NO+1 NC

Product Overview The Siemens 5ST3010 is a high-performance SENTRON auxiliary switch featuring 1 normally open (NO) + 1 normally closed (NC) contact configuration, specifically designed for miniature circuit breakers 5SL, 5SY, and 5SP series. This versatile auxiliary device provides reliable switching functionality for electrical control systems, operating at rated voltages up to 400V AC/DC with exceptional electrical endurance of 10,000 operating cycles. The compact half-module design (0.5 units) enables space-efficient installation while ensuring universal compatibility with incorporated switches 5TL1, RCBO 5SU1, and FI 5SV applications (for 5SU1 handle coupler 5ST3805-1 is required).

Key Features

• Dual Contact Configuration: Features both 1 NO and 1 NC contacts for versatile auxiliary switching applications
• Universal Compatibility: Compatible with 5SL, 5SY, 5SP series MCBs, 5TL1 switches, RCBO 5SU1, and FI 5SV devices
• High Electrical Endurance: Typically 10,000 operating cycles for long-term reliability
• Compact Half-Module Design: 0.5 module width (9mm) for maximum space efficiency
• Wide Operating Range: Functions reliably from -25°C to +55°C ambient temperature
• Easy Installation: User-friendly screw terminal connections for 0.5-2.5 mm² conductors
• High Voltage Rating: Operates at 400V rated value with AC/DC compatibility (minimum 12V)
• IP20 Protection: Suitable for standard electrical enclosure applications

Technical Specifications

• Operating Voltage: 400V rated value (AC/DC minimum 12V)
• Insulation Voltage: 440V rated value
• Surge Voltage Resistance: 4kV rated value
• Contact Configuration: 1 NO + 1 NC
• Electrical Endurance: 10,000 operating cycles (typical)
• Conductor Cross-Section: 0.5-2.5 mm² (AWG 24-12)
• Tightening Torque: 1 N·m maximum
• Dimensions: 90 x 9 x 70 mm (H x W x D)
• Modular Width: 0.5 units
• Net Weight: 0.0542 kg (54 g)
• Protection Class: IP20
• Operating Temperature: -25°C to +55°C
• Storage Temperature: -40°C minimum
• Country of Origin: India
• EAN: 4001869187402

Applications This auxiliary switch is particularly suitable for:

• Miniature circuit breaker status indication
• Industrial control panel applications
• Building automation and monitoring systems
• Motor control center installations
• Distribution board auxiliary functions
• Process control and safety systems
• Infrastructure automation applications
• Remote monitoring and control systems
• Electrical maintenance and diagnostic systems
• Power distribution auxiliary switching

Compliance & Certifications

• Standards Compliance: IEC/EN60947-5-1, IEC/EN62019
• RoHS Compliance: Compliant since January 1, 2006
• WEEE Directive: Subject to take-back obligations under directive 2012/19/EU
• REACH Regulation: Currently no SVHC substances identified above 0.1% w/w threshold
• Export Control: AL: N / ECCN: N
• Product Class: A - Standard product which is a stock item could be returned within the returns guidelines/period
• Environmental Product Declaration: Available with 4.1 kg CO2 equivalent total
• Special Approvals: Maritime application and Railway environment certified

Product Classification

• eClass: 27-14-35-02 (versions 6-14)
• ETIM: EC001286 (versions 7-9)
• UNSPSC: 39-12-15-22
• Product Group: 5506

Download existing graphical data for this product:

• Product Datasheet
• Installation Manual
• SENTRON Product Catalog
• Technical Documentation