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5SL4203-7
Miniature circuit breaker 400 V 10kA, 2-pole, C, 3A
- Stock status:
- In stock
- Manufacturer:
- Siemens
- Product code:
- 5SL4203-7
Main documents
- Product datasheet
- Instruction sheet
- Catalogue
| Product | |
| Article Number (Market Facing Number) | 5SL4203-7 |
| Product Description | Miniature circuit breaker 400 V 10kA, 2-pole, C, 3A |
| Product family | Basic Devices |
| Product Lifecycle (PLM) | PM300:Active Product |
| Price data | |
| Region Specific PriceGroup / Headquarter Price Group | 12B / 1AC |
| List Price | Show prices |
| Customer Price | Show prices |
| Surcharge for Raw Materials | None |
| Metal Factor | L-A—– |
| Additional Product Information | ||
| EAN | 4001869440293 | |
| UPC | Not available | |
| Commodity Code | 85362010 | |
| LKZ_FDB/ CatalogID | LV10.1 | |
| Product Group | 3805 | |
| Group Code | P310 | |
| Country of origin | Romania | |
| Compliance with the substance restrictions according to RoHS directive | Since: 01.06.2013 | |
| Product class | B: return restricted, please contact your Siemens partner/contact | |
| WEEE (2012/19/EU) Take-Back Obligation | Yes | |
| REACH Art. 33 Duty to inform according to the current list of candidates | ||
| SCIP number | Not available | |
Product Description
5SL4203-7
The Siemens 5SL4203-7 is a 2-pole Miniature Circuit Breaker (MCB) engineered for reliable protection of electrical installations against overloads and short circuits. With a rated current of 3 A and a C-type tripping characteristic, this MCB is ideal for protecting moderate inrush current circuits such as lighting, small motors, and control systems.
Key Features and Specification
- Rated Operating Voltage: 400 V AC
- Rated Current: 3 A
- Number of Poles: 2
- Tripping Characteristic: Type C (ideal for mixed resistive and inductive loads)
- Breaking Capacity: 10 kA (as per IEC 60898-1)
- Dual-pole switching for comprehensive protection
- Fast and reliable disconnection during fault conditions
- Type C tripping for use in commercial and light industrial applications
- Compact DIN rail-mounted design for easy integration into distribution boards
- High-quality build ensures long service life and dependable performance
Product Information
- Number: 5SL4203-7
- EAN: 4001869440293
- Commodity Code: 85362010
- Catalog ID: LV10.1
- Product Group: 3805
- Group Code: P310
- Lifecycle Status: PM300 – Active Product
Applications
- Residential and commercial electrical panels
- Circuit protection for small motor loads, lighting systems, and control circuits
- Safe current interruption in low to medium power applications
Summary:
The Siemens 5SL4203-7 delivers robust 3 A circuit protection with a 2-pole, Type C configuration and high 10 kA breaking capacity, ensuring safety and efficiency in modern electrical installations.
Frequently Asked Questions
What is the rule for installing an SPD?
✅ SPD (Surge Protection Device) connections should be as short as possible to minimize the voltage protection level (Up). The total length of connections to the network and earth should not exceed 50 cm to ensure effective surge protection.
How to Set Up a Surge Protector?
1.Turn off power at the circuit breaker.
2. Remove the old outlet.
3. Connect wires to the new surge-protected outlet per the manufacturer’s instructions.
4. Secure the outlet in the box and replace the cover plate.
5. Restore power and test the outlet.
What is the use of RCCB in Siemens?
✅ Siemens Residual Current Circuit Breakers (RCCBs) protect against electric shock by detecting leakage currents. If the leakage exceeds a set limit, the RCCB immediately disconnects the circuit, ensuring safety from direct or indirect contact with live components.
Where to Install RCCB?
✅ RCCBs should be installed in the distribution board (DB box) or circuit breaker panel to protect against current leakages caused by faulty wiring, ageing insulation, or defective appliances.
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