Product Description

Siemens 5SL5406-7RC MCB DC 1000V 6A 4-Pole C Characteristic 10kA

The Siemens 5SL5406-7RC is a SENTRON 5SL5 miniature circuit breaker (MCB) specifically designed for DC electrical applications where reliable protection against overload and short-circuit conditions is required. This model features a 6 A rated current, 4-pole configuration, C tripping characteristic and 10 kA short-circuit breaking capacity. Siemens product listings specify the 5SL5 DC range for 4-pole applications with up to 880 V DC rated operating voltage, with a maximum operational voltage of 1000 V DC.

The Siemens 5SL5406-7RC 6A 4-pole DC MCB is developed for applications where standard AC MCBs are not appropriate and dedicated DC circuit protection is required. Its design is especially relevant to modern DC power systems, including solar photovoltaic installations, DC distribution systems, battery applications and industrial DC circuits, when the system voltage and protection arrangement are correctly matched to the breaker.

A major advantage of this Siemens MCB is its 4-pole configuration for DC applications. DC fault interruption requires appropriate switching and arc-extinguishing arrangements, and this dedicated 5SL5 DC range is designed for such applications. The four-pole arrangement can be used according to the Siemens-approved connection configuration for the required DC system voltage.

The C characteristic provides a defined tripping response suitable for selected DC circuits with moderate starting or transient currents. The 6 A rating makes this particular model appropriate for relatively low-current DC circuits, control supplies, auxiliary systems and other compatible applications.

The 10 kA breaking capacity provides the specified short-circuit interruption capability for the applicable DC protection arrangement. For high-voltage DC applications, the correct pole connection and system configuration are critical, so the Siemens connection diagram and application instructions should be followed before commissioning. Siemens' price-list documentation specifically notes that connection details should be obtained from Siemens for these DC MCBs.

Key Features

• Siemens 5SL5406-7RC
• SENTRON 5SL5 series DC miniature circuit breaker
• Rated current: 6 A
• 4-pole (4P) configuration
• C tripping characteristic
• 10 kA short-circuit breaking capacity
• Designed specifically for DC circuit protection
• Maximum operational voltage: 1000 V DC
• 4-pole DC range specified for up to 880 V DC
• Suitable for overload protection
• Suitable for short-circuit protection
• Suitable for solar PV and DC distribution applications
• Suitable for battery and energy-storage-related circuits
• Suitable for industrial DC control and auxiliary circuits
• Suitable for OEM electrical equipment
• Designed for professional electrical protection systems

Applications

The Siemens 5SL5406-7RC 6A 4-pole C curve DC MCB can be considered for:

• Solar photovoltaic DC systems
• PV string and DC distribution protection
• Battery systems
• Energy storage systems
• DC control panels
• Industrial DC circuits
• DC auxiliary circuits
• Telecom and power electronics installations
• Industrial automation systems
• OEM DC electrical equipment
• DC switchboards
• Renewable energy installations
• Electrical control cabinets
• Industrial infrastructure
• Suitable high-voltage DC protection applications

Benefits

The Siemens 5SL5406-7RC provides a dedicated circuit protection solution for DC electrical systems, offering protection against overload and short-circuit conditions in applications where DC-specific interruption characteristics are required.

Its 4-pole DC construction is particularly important for high-voltage DC installations because the proper pole arrangement and connection configuration are part of achieving the device's specified interruption capability. This makes it more suitable for dedicated DC applications than simply selecting a conventional AC MCB based only on current rating.

With a 6 A rated current, the 5SL5406-7RC is appropriate for suitably designed low-current DC circuits. It can be considered for control circuits, auxiliary power supplies, PV-related circuits, battery systems, industrial DC equipment and other applications where the current requirement falls within the MCB rating.

The C tripping characteristic provides a defined response for circuits where moderate starting or transient currents may occur. The correct characteristic should be selected according to the connected equipment and expected operating current.

The 10 kA breaking capacity provides substantial short-circuit interruption capability for the applicable DC configuration. This can be especially important in DC systems where fault currents from batteries, PV arrays or other DC sources can remain sustained and require appropriately rated protective equipment.

The device's maximum operational voltage of 1000 V DC makes the 5SL5 DC family relevant to modern high-voltage DC applications. Siemens documentation identifies the 5SL5 family as 4-pole DC MCBs with 880 V DC operating voltage and maximum operational voltage of 1000 V DC.

For solar EPC companies, panel builders, renewable-energy integrators, OEMs and industrial electrical contractors, the Siemens 5SL5406-7RC can be considered where a compact, modular and dedicated DC circuit-breaker solution is required.

The Siemens 6A 4P C curve DC 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 renewable-energy locations across India.

For high-voltage DC installations, always confirm the actual operating voltage, pole configuration, polarity, connection arrangement, prospective short-circuit current and Siemens-approved wiring diagram before installation.

Why Buy Siemens 5SL5406-7RC from SB Smart?

SB Smart supplies Siemens industrial electrical, automation, renewable-energy and circuit protection products for OEMs, panel builders, solar EPCs, electrical contractors, system integrators and industrial maintenance teams across India.

The Siemens 5SL5406-7RC 6A 4P DC MCB is suitable for customers looking for Siemens DC circuit protection products for solar PV, battery systems, industrial DC distribution, control panels and electrical equipment.

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 and renewable-energy markets across India.

FAQs

1. What is Siemens 5SL5406-7RC?
It is a Siemens SENTRON 5SL5 DC miniature circuit breaker rated 6 A, 4-pole, C characteristic and 10 kA breaking capacity.

2. What is the rated current?
The rated current is 6 A.

3. Is this MCB designed for DC applications?
Yes. The 5SL5 DC range is specifically designed for DC circuit protection.

4. What is the maximum operational voltage?
The Siemens 5SL5 4-pole DC range is specified with a maximum operational voltage of 1000 V DC; the associated range is listed for 880 V DC operation.

5. What is the breaking capacity?
The specified breaking capacity is 10 kA according to the Siemens 5SL5 DC product range documentation.

6. How many poles does the 5SL5406-7RC have?
It is a 4-pole (4P) DC miniature circuit breaker.

7. Where can this Siemens DC MCB be used?
It can be considered for suitable solar PV systems, battery installations, DC distribution, industrial DC control panels, automation equipment and OEM electrical applications.

8. Is the connection arrangement important for 1000 V DC applications?
Yes. For high-voltage DC applications, the correct pole connection and wiring configuration are critical. Siemens documentation specifically indicates that connection details should be followed for this DC range.