The Siemens 5SL7340-7RC is a SENTRON 5SL7 miniature circuit breaker (MCB) designed to provide reliable protection against overload and short-circuit conditions in electrical installations. This MCB features a 40 A rated current, 3-pole configuration, C tripping characteristic, 415 V supply voltage and 15 kA short-circuit breaking capacity. The available product datasheet confirms the 3-pole design, C characteristic, 40 A rating and 15 kA breaking capacity.
The Siemens 5SL7340-7RC 40A 3-pole MCB is suitable for electrical circuits requiring dependable overcurrent protection with a C tripping characteristic. The C curve is commonly selected for general-purpose circuits where moderate starting or inrush currents can occur, making this MCB suitable for a broad range of industrial, commercial and distribution applications.
Its 3-pole configuration makes the device suitable for compatible three-phase electrical systems where coordinated protection and switching of three poles is required. It can be integrated into distribution boards, industrial control panels, machinery panels, electrical switchboards and OEM electrical assemblies.
The 15 kA short-circuit breaking capacity provides a high specified fault-interruption capability for installations where the prospective short-circuit current requires a protective device with this rating. The datasheet specifies 15 kA breaking capacity according to both EN 60898 and IEC 60947-2.
With a 40 A rated current, the 5SL7340-7RC is suitable for appropriately designed medium-current circuits. The connected load, conductor capacity, operating conditions and prospective fault current should all be considered when selecting the MCB.
The 415 V supply rating makes it suitable for compatible three-phase electrical distribution systems. The product documentation also indicates operation at 50/60 Hz and a maximum operating voltage of 440 V for multi-phase operation.
As part of the Siemens SENTRON 5SL7 family, this MCB is suitable for professional circuit protection applications and can be considered by panel builders, OEMs, electrical contractors, system integrators and industrial maintenance teams.
The Siemens 5SL7340-7RC 40A 3-pole C curve MCB can be considered for:
The Siemens 5SL7340-7RC provides dependable circuit protection for applications requiring a 40 A, 3-pole MCB with C characteristic. Its C tripping characteristic offers a practical solution for many general-purpose electrical circuits where moderate starting or inrush currents can occur.
This makes the device suitable for appropriately designed distribution, control, machinery and equipment circuits where the C characteristic matches the load profile. Correct selection of the tripping curve helps provide reliable protection while reducing the possibility of nuisance tripping during normal equipment operation.
The 15 kA breaking capacity provides a high specified short-circuit interruption capability. This is especially relevant for electrical installations where the calculated prospective short-circuit current requires a protective device with a higher fault-interruption rating. The actual fault level should always be verified before installation.
The 3-pole construction provides coordinated protection and switching for compatible three-phase circuits. This makes the MCB convenient for integration into distribution boards, industrial control cabinets, machinery panels and electrical switchboards.
The 40 A current rating makes the 5SL7340-7RC suitable for appropriately designed medium-current circuits. Correct coordination between the MCB, cable size, connected load and upstream/downstream protective devices is essential for effective circuit protection.
The 415 V supply rating supports use in compatible three-phase electrical systems. The documented operating range also allows multi-phase operation up to 440 V, while the device is specified for 50/60 Hz applications.
The product is also designed with features such as touch protection, sealability and halogen-free construction, according to the available datasheet.
The Siemens 40A 3P C curve 15 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, prospective short-circuit current, system voltage 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 5SL7340-7RC 40A 3P C characteristic 15 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 Indian industrial markets.
1. What is Siemens 5SL7340-7RC?
It is a Siemens SENTRON 5SL7 miniature circuit breaker rated 40 A, 3-pole, C characteristic, 415 V and 15 kA breaking capacity.
2. What is the rated current?
The rated current is 40 A.
3. How many poles does this MCB have?
The 5SL7340-7RC is a 3-pole (3P) miniature circuit breaker.
4. What is the tripping characteristic?
It has a C tripping characteristic, generally suited to general-purpose circuits with moderate starting or inrush currents.
5. What is the breaking capacity?
The specified short-circuit breaking capacity is 15 kA according to the available product datasheet.
6. What is the supply voltage?
The specified supply voltage is 415 V AC.
7. Where can this MCB be used?
It can be considered for suitable three-phase distribution systems, industrial control panels, machinery panels, commercial installations, OEM equipment and electrical switchboards.
8. What is the advantage of a 3-pole MCB?
A 3-pole MCB provides coordinated protection and switching for compatible three-phase circuits, making it suitable for many industrial and commercial distribution applications
|
Parameter |
Specification |
|
Product Series |
Siemens SENTRON 5SL7 |
|
Part Number |
5SL7340-7RC |
|
Product Type |
Miniature Circuit Breaker (MCB) |
|
Number of Poles |
3P |
|
Rated Current |
40A |
|
Tripping Characteristic |
C Curve |
|
Rated Voltage |
415V AC |
|
Rated Insulation Voltage |
440V |
|
Breaking Capacity |
15kA |
|
Frequency |
50/60 Hz |
|
Mounting Type |
DIN Rail |
|
Terminal Type |
Screw terminal |
|
Protection Class |
IP20 |
|
Overvoltage Category |
III |
|
Pollution Degree |
2 |
|
Mechanical Life |
10,000 operating cycles |
|
Standard Compliance |
IEC 60898-1 / IEC 60947-2 |
|
Application |
Distribution boards, industrial panels, feeder protection |
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