The Siemens SENTRON Auxiliary Switch 5ST30100HG is a genuine accessory designed for miniature circuit breakers (MCBs) in accordance with UL 489 standards. Featuring 1 Normally Open (NO) contact and 1 Normally Closed (NC) contact, this MCB auxiliary switch provides reliable remote indication and status monitoring of circuit breaker operation in industrial, commercial, and electrical distribution systems. It is designed as a side-mounted accessory for compatible Siemens miniature circuit breakers, enabling efficient signaling for automation, monitoring, and control applications.
The 5ST30100HG auxiliary switch is widely used in electrical distribution boards, control panels, switchboards, motor control centers (MCC), industrial automation systems, OEM equipment, and building management systems (BMS). It allows operators to remotely monitor the ON/OFF status of miniature circuit breakers, helping improve operational safety, maintenance efficiency, and system reliability.
Manufactured to Siemens quality standards, the SENTRON auxiliary switch offers dependable performance, easy installation, and long service life. It is an ideal solution for panel builders, electrical contractors, OEMs, maintenance engineers, and industrial facilities requiring accurate breaker status indication.
At SB Smart, we supply genuine Siemens 5ST30100HG Auxiliary Switches with competitive pricing, expert technical support, bulk order assistance, and fast PAN India delivery.
Genuine Siemens SENTRON accessory
1 Normally Open (NO) and 1 Normally Closed (NC) contact
Designed for compatible Siemens miniature circuit breakers
Complies with UL 489 requirements
Reliable remote status indication
Easy installation and secure mounting
Long operational life
High-quality industrial construction
Suitable for automation and monitoring systems
Trusted Siemens performance and reliability
Electrical Distribution Boards
Industrial Control Panels
Motor Control Centers (MCC)
Power Distribution Systems
Building Management Systems (BMS)
Industrial Automation
OEM Control Panels
Commercial Electrical Installations
Switchboards
Manufacturing Plants
Infrastructure Projects
Utility Power Distribution
Enables remote monitoring of MCB status
Improves electrical system safety
Simplifies maintenance and troubleshooting
Enhances automation and control
Reliable switching performance
Easy integration into existing panels
Reduces downtime
Suitable for industrial and commercial applications
Long-lasting and maintenance-friendly design
100% Genuine Siemens Products
Competitive Prices
Expert Technical Support
Bulk Order Assistance
Fast PAN India Delivery
Secure Packaging
Trusted Industrial Electrical Supplier
GST Invoice Available
Responsive Customer Support
It is used for remote indication and monitoring of the operating status of compatible Siemens miniature circuit breakers in electrical and industrial control systems.
It is commonly installed in electrical distribution boards, MCC panels, control panels, switchboards, and industrial automation systems.
Yes. It is designed for industrial, commercial, and OEM electrical installations requiring reliable breaker status indication.
Yes. SB Smart supplies genuine Siemens SENTRON accessories with technical support and fast PAN India delivery.
Yes. We support bulk orders for panel builders, contractors, OEMs, and industrial projects.
| Parameter | Specification |
|---|---|
| Manufacturer | Siemens |
| Part Number | 5ST30100HG |
| Product Series | SENTRON 5ST3 |
| Product Type | Auxiliary Switch |
| Contact Configuration | 1 NO + 1 NC |
| Function | Remote ON/OFF Status Indication |
| Compatible Devices | UL 489 Miniature Circuit Breakers |
| Mounting Type | Side Mounted |
| Rated Insulation Voltage (Ui) | 440 V |
| Rated Impulse Withstand Voltage (Uimp) | 4 kV |
| Operating Voltage | Up to 480 V AC/DC |
| Control Voltage Type | AC/DC |
| Electrical Endurance | Approx. 6,000 Operating Cycles |
| Degree of Protection | IP20 |
| Conductor Size | 0.5–2.5 mm² (AWG 24–12) |
| Standards | UL 489, IEC Compliant |
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