Siemens SENTRON MCB 40A, 2P, 415V AC – 5SL4240-7RC
The Siemens 5SL4240-7RC is a high-quality SENTRON miniature circuit breaker (MCB) designed to provide reliable protection against overload and short-circuit faults in low-voltage electrical distribution systems. It is widely used in industrial, commercial, and residential applications for protecting feeders, control panels, lighting, and socket circuits operating on 240/415V AC networks.
This 2-pole MCB features a C-curve tripping characteristic, making it suitable for general-purpose loads with moderate inrush currents such as motors, transformers, and mixed electrical circuits. With a 10kA breaking capacity, it ensures fast fault isolation and improved electrical safety.
Key Features:
• Siemens SENTRON 5SL series MCB
• Rated current: 40A
• 2-pole (2P) protection
• C-curve tripping characteristic
• Breaking capacity: 10kA
• Rated voltage: 240/415V AC
• DIN rail mounting for easy installation
• High performance overload & short-circuit protection
• Finger-safe terminal design
• Strong electrical and mechanical endurance
• Suitable for industrial and commercial distribution boards
• IEC/EN compliant construction
Technical Specifications
|
Parameter |
Specification |
|
Product Model |
5SL4240-7RC |
|
Brand |
Siemens |
|
Series |
SENTRON 5SL |
|
Type |
Miniature Circuit Breaker (MCB) |
|
Number of Poles |
2 Pole |
|
Rated Current |
40 A |
|
Rated Voltage |
240/415 V AC |
|
Frequency |
50/60 Hz |
|
Tripping Characteristic |
Curve C |
|
Breaking Capacity |
10 kA |
|
Insulation Voltage (Ui) |
440 V |
|
Impulse Withstand Voltage (Uimp) |
4 kV |
|
Energy Limitation Class |
3 |
|
Mounting Type |
DIN Rail |
|
Protection Class |
IP20 |
|
Mechanical Life |
10,000 operations |
|
Electrical Life |
4,000 operations |
|
Operating Temperature |
-25°C to +55°C |
|
Terminal Capacity |
0.75–25 mm² |
|
Standards |
IEC/EN 60898-1 |
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