2x Siemens MCB Circuit Breaker & Auxiliary Switches 5SY4104-7 5SY4106-7 5ST301

For sale is a bundle of Siemens miniature circuit breakers (MCB) and auxiliary circuit switches, all in used, good working condition. This high-quality lot includes two Siemens 5SY series circuit breakers—one C4 and one C6 type (230/400V), as well as two Siemens 5ST3010 auxiliary circuit switches. Made in Germany, these components are robustly engineered for safety and reliability in industrial and commercial electrical panels.

Bundle Includes:

• 1 x Siemens 5SY4104-7 MCB (C4): 3-pole, 230/400V, 4000A, IEC/EN 60898-1 compliant, Made in Germany

• 1 x Siemens 5SY4106-7 MCB (C6): 3-pole, 230/400V, IEC/EN 60898-1 compliant, current-limiting class, Made in Germany

• 2 x Siemens 5ST3010 Auxiliary Circuit Switches: AC: 400V/230V, 6A/2A, DC: 220V/110V/60V/24V, 6A/3A/1A, IEC/EN 60947-5-1 certified, Made in CZ and Germany

Features:

• Trusted Siemens quality for circuit protection and control

• Suitable for both industrial and commercial electrical installations

• IEC/EN certified for global standards and safety compliance

• Simple DIN rail mount for easy installation

• Each unit individually labeled for quick identification

Collector/Background Information:
Siemens 5SY and 5ST series parts are recognized for their durability and performance. These models are sought after for replacement, maintenance, or creating/expanding legacy electrical systems. They are ideal for panel builders, engineers, and collectors wanting reliable original Siemens hardware with worldwide certifications.