The Siemens 5SL6120-6RC is a SENTRON 5SL6 miniature circuit breaker (MCB) designed to provide reliable protection against overload and short-circuit conditions in suitable electrical installations. This Siemens MCB features a 20 A rated current, 1-pole configuration, B tripping characteristic and 7.5 kA short-circuit breaking capacity, making it suitable for appropriately designed industrial, commercial and electrical distribution applications.
The Siemens 5SL6120-6RC 20A 1-pole MCB is designed for individual electrical circuits where dependable overcurrent protection is required in a compact modular format. Its B tripping characteristic is generally suitable for circuits with relatively low starting or inrush currents. This makes it a practical choice for general-purpose distribution circuits, resistive loads, control circuits, auxiliary applications and other compatible electrical equipment.
The 1-pole configuration provides a compact solution for individual circuit protection. It can be integrated into electrical distribution boards, industrial control panels, automation cabinets, machinery control panels and OEM electrical assemblies where dedicated circuit protection is required.
With a 20 A rated current, the 5SL6120-6RC is suitable for appropriately designed low-to-medium current circuits. Proper coordination between the MCB rating, connected load, conductor capacity and upstream and downstream protective devices is important for reliable electrical operation.
The 7.5 kA short-circuit breaking capacity provides the specified fault-interruption capability for suitable installations. The prospective short-circuit current at the installation point should always be assessed before selecting the MCB to confirm that its breaking capacity is adequate for the electrical system.
As part of the Siemens SENTRON 5SL6 series, the 5SL6120-6RC provides a compact and professional circuit protection solution for electrical installations. It can be considered by panel builders, OEMs, electrical contractors, system integrators, automation professionals and industrial maintenance teams.
The Siemens 5SL6120-6RC 20A 1-pole B curve MCB can be considered for:
The Siemens 5SL6120-6RC provides dependable circuit protection for applications requiring a 20 A, 1-pole MCB with B characteristic and 7.5 kA breaking capacity. Its compact 1-pole design makes it suitable for protecting individual circuits while helping maintain an organized and space-efficient electrical panel layout.
The B tripping characteristic is generally selected for circuits where the expected starting or inrush current is relatively low. This makes the MCB suitable for appropriately designed general distribution, resistive-load, control and auxiliary circuits where the B curve matches the connected equipment.
The 7.5 kA breaking capacity provides the specified capability to interrupt suitable short-circuit fault currents within the applicable ratings of the device. Proper assessment of the prospective short-circuit current is important to confirm that the selected MCB is suitable for the intended installation.
The 1-pole construction offers an efficient solution for individual circuit protection in distribution boards, automation panels, control cabinets, machinery systems and OEM electrical assemblies. Its modular format helps panel builders maintain a clean and organized protection arrangement.
The 20 A rated current makes the 5SL6120-6RC suitable for appropriately designed low-to-medium current individual circuits. Correct coordination between the MCB rating, conductor capacity and connected load helps provide effective protection against overload and short-circuit conditions.
The B characteristic is particularly appropriate for loads with comparatively low inrush currents. For equipment that generates significantly higher starting currents, such as certain motors or transformers, another tripping characteristic may be more suitable depending on the application and protection design.
The Siemens SENTRON 5SL6 series provides a practical modular solution for professional electrical protection. The 5SL6120-6RC can be considered for OEM panels, industrial automation systems, machinery control applications, distribution boards and commercial electrical installations.
The Siemens 20A 1P B curve 7.5 kA MCB can be considered for suitable projects across Faridabad, Delhi NCR, Noida, Gurgaon/Gurugram, Ghaziabad, Punjab, Mumbai, Pune, Ahmedabad, Hyderabad, Bengaluru/Bangalore, Chennai, Kolkata, Jaipur, Chandigarh, Ludhiana and other major industrial and commercial locations across India.
Always verify the connected load, conductor rating, system voltage, prospective short-circuit current and coordination with upstream and downstream protective devices before installation.
SB Smart supplies Siemens industrial electrical, automation and circuit protection products for OEMs, panel builders, electrical contractors, system integrators and industrial maintenance teams across India.
The Siemens 5SL6120-6RC 20A 1P B characteristic 7.5 kA MCB is suitable for customers looking for Siemens circuit protection products for industrial, commercial, machinery, automation and electrical distribution applications.
SB Smart supports sourcing requirements across Faridabad, Delhi NCR, Noida, Gurgaon/Gurugram, Mumbai, Pune, Ahmedabad, Hyderabad, Bengaluru/Bangalore, Chennai, Kolkata, Chandigarh, Ludhiana and other major industrial markets across India.
1. What is Siemens 5SL6120-6RC?
It is a Siemens SENTRON 5SL6 miniature circuit breaker rated 20 A, 1-pole, B characteristic and 7.5 kA breaking capacity.
2. What is the rated current?
The rated current is 20 A.
3. How many poles does this MCB have?
The 5SL6120-6RC is a 1-pole (1P) miniature circuit breaker.
4. What is the tripping characteristic?
It has a B tripping characteristic, generally suitable for circuits with relatively low starting or inrush currents.
5. What is the breaking capacity?
The specified short-circuit breaking capacity is 7.5 kA.
6. Where can the Siemens 5SL6120-6RC be used?
It can be considered for suitable individual circuit protection, electrical distribution boards, industrial control panels, automation systems, OEM equipment, machinery and commercial electrical installations.
7. What is the advantage of a B-characteristic MCB?
A B-characteristic MCB is generally suitable for circuits with comparatively low inrush currents, including many general distribution and resistive-load applications. Final selection should always be based on the actual equipment and complete protection design.
8. Is this MCB suitable for industrial applications?
Yes, it can be considered for suitable industrial applications where its 20 A rating, 1-pole configuration, B characteristic and 7.5 kA breaking capacity meet the electrical system requirements.
| Parameter | Specification |
|---|---|
| Product Series | Siemens SENTRON 5SL6 |
| Part Number | 5SL6120-6RC |
| Product Type | Miniature Circuit Breaker (MCB) |
| Number of Poles | 1 Pole (SP) |
| Rated Current | 20A |
| Tripping Characteristic | B Curve |
| Rated Operational Voltage | 230/400V AC |
| Rated DC Voltage | 72V DC |
| Short Circuit Breaking Capacity | 6kA |
| Frequency | 50/60 Hz |
| Mounting Type | DIN Rail Mounting |
| Terminal Type | Screw Terminal |
| Degree of Protection | IP20 |
| Width | 18 mm |
| Height | 90 mm |
| Depth | 76 mm |
| Connection Capacity | 0.75 – 25 mm² |
| Operating Temperature | -25°C to +45°C |
| Mechanical Life | Up to 20,000 Operations |
| Standard Compliance | IEC / EN 60898-1 |
| Material | Industrial Grade Thermoplastic |
| Application | Distribution Boards, Lighting Circuits, Control Panels, Industrial & Commercial Power Distribution |
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