Product Description

Siemens 5SL7340-8RC MCB 40A 3-Pole D Characteristic 10kA

The Siemens 5SL7340-8RC is a SENTRON 5SL7 miniature circuit breaker (MCB) designed to provide reliable protection against overload and short-circuit conditions in electrical installations. This MCB is rated at 40 A, features a 3-pole configuration, D tripping characteristic, 415 V rated voltage, and a 10 kA breaking capacity according to the product designation. The 5SL7 family is designed for professional electrical protection and distribution applications.

The Siemens 5SL7340-8RC 40A 3-pole MCB is suitable for circuits where dependable overcurrent protection is required and where connected equipment may experience higher starting or inrush currents. Its D characteristic makes it suitable for selected applications involving motors, transformers, inductive loads and other equipment with higher startup-current requirements.

The 3-pole construction makes this MCB suitable for compatible three-phase electrical systems where coordinated protection and switching of three poles is required. It can be incorporated into electrical distribution boards, industrial control panels, machinery panels, automation systems and commercial electrical installations.

The 40 A rated current makes the 5SL7340-8RC suitable for appropriately designed medium-current circuits. The MCB should be selected according to the connected load, conductor capacity, operating conditions and overall protection requirements.

The 415 V rating supports use in compatible three-phase electrical distribution systems. Its D tripping characteristic is an important selection factor because it is intended for suitable circuits with higher starting or transient currents.

The 5SL7 series is used across industrial and commercial electrical applications and can be considered by panel builders, OEMs, electrical contractors, system integrators and maintenance teams looking for Siemens circuit protection products.

Key Features

• Siemens 5SL7340-8RC
• SENTRON 5SL7 series MCB
• Rated current: 40 A
• Rated voltage: 415 V
• 3-pole (3P) configuration
• D tripping characteristic
• 10 kA short-circuit breaking capacity
• Designed for overload protection
• Designed for short-circuit protection
• Suitable for selected high-inrush-current applications
• Suitable for compatible three-phase systems
• Suitable for industrial control panels
• Suitable for electrical distribution boards
• Suitable for machinery applications
• Suitable for OEM electrical equipment
• Suitable for commercial and industrial installations

Applications

The Siemens 5SL7340-8RC 40A 3-pole D curve MCB can be considered for:

• Three-phase electrical distribution
• Industrial distribution boards
• Commercial electrical panels
• Industrial control panels
• Machinery control panels
• Motor-related circuits
• Transformer-related circuits
• Inductive load applications
• Industrial automation systems
• Manufacturing facilities
• Electrical switchboards
• OEM electrical panels
• Machinery installations
• Power distribution systems
• Industrial infrastructure

Benefits

The Siemens 5SL7340-8RC provides dependable circuit protection for applications requiring a 40 A, 3-pole MCB with D characteristic. The D curve is suitable for selected circuits where connected equipment produces higher starting or inrush currents during normal operation.

This makes the MCB particularly relevant to appropriately designed applications involving motors, transformers, inductive equipment and other loads with higher startup currents. Selecting the correct tripping characteristic can help reduce unwanted tripping while maintaining the required circuit protection.

The 3-pole configuration provides coordinated protection and switching for compatible three-phase circuits. This makes the device convenient for integration into industrial distribution boards, electrical switchboards, machinery panels and control cabinets.

With a 40 A rated current, the 5SL7340-8RC can be used for suitably designed medium-current circuits where the load and conductor capacity are properly matched to the protective device. Correct sizing is important for reliable protection and system performance.

The 415 V rating allows the MCB to be used in compatible electrical distribution systems within its specified operating range. Its compact modular format is suitable for organized installation in distribution boards and control panels.

The Siemens SENTRON 5SL7 series is well suited to professional electrical protection applications, making the 5SL7340-8RC a practical option for OEM panels, industrial machinery, automation systems, commercial installations and electrical distribution projects.

The Siemens 40A 3P D curve 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 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.

Why Buy Siemens 5SL7340-8RC from SB Smart?

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 5SL7340-8RC 40A 3P D characteristic 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.

FAQs

1. What is Siemens 5SL7340-8RC?
It is a Siemens SENTRON 5SL7 miniature circuit breaker rated 40 A, 3-pole, D characteristic and 10 kA breaking capacity.

2. What is the rated current?
The rated current is 40 A.

3. How many poles does this MCB have?
The 5SL7340-8RC is a 3-pole (3P) miniature circuit breaker.

4. What is the tripping characteristic?
It has a D tripping characteristic, suitable for selected circuits with higher starting or inrush currents.

5. What is the breaking capacity?
The product designation specifies a 10 kA breaking capacity.

6. What is the rated voltage?
The rated voltage is 415 V.

7. Where can this MCB be used?
It can be considered for suitable three-phase distribution systems, industrial control panels, machinery, motor-related circuits, transformer applications, commercial installations and OEM equipment.

8. Why choose a D-characteristic MCB?
A D-characteristic MCB is suitable for selected loads with comparatively higher starting or inrush currents. Final selection should always be based on the actual equipment, conductor rating and complete electrical protection design.