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5SV4345-0
residual current operated circuit breaker, 4-pole, type AC, In: 125 A, 30 mA, Un AC: 400 V, use of these devices is not permitted in all countries. Observe national installation regulations!
- Stock status:
- Call for availability
- Manufacturer:
- Siemens
- Product code:
- 5SV4345-0
Main documents
- Product datasheet
- Instruction sheet
- Catalogue
Related products
| Product | |
| Article Number (Market Facing Number) | 5SV4345-0 |
| Product Description | residual current operated circuit breaker, 4-pole, type AC, In: 125 A, 30 mA, Un AC: 400 V, use of these devices is not permitted in all countries. Observe national installation regulations! |
| Product family | RCCBs |
| Product Lifecycle (PLM) | PM300:Active Product |
| Price data | |
| Region Specific PriceGroup / Headquarter Price Group | 11C / 1AI |
| List Price | Show prices |
| Customer Price | Show prices |
| Surcharge for Raw Materials | None |
| Metal Factor | None |
| Additional Product Information | ||
| EAN | 4047624418367 | |
| UPC | Not available | |
| Commodity Code | 85362090 | |
| LKZ_FDB/ CatalogID | LV10 | |
| Product Group | 5510 | |
| Group Code | P310 | |
| Country of origin | Slovenia | |
| Compliance with the substance restrictions according to RoHS directive | Since: 02.06.2023 | |
| 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
5SV4345-0
The Siemens 5SV4345-0 is a 4-pole Residual Current Operated Circuit Breaker (RCCB) designed to protect electrical installations against the dangers of electric shock and fire caused by earth leakage currents. With a 125A rated current and 30mA residual sensitivity, it provides high-capacity protection suitable for demanding applications. This RCCB operates on 400 V AC systems and uses Type AC sensitivity, detecting sinusoidal AC leakage currents.
⚠️ Important Note: The use of Type AC RCCBs is not permitted in all countries. Installers must observe and comply with national installation regulations before use.
Key Features and Specification
- Rated Current (In): 125 A
- Rated Voltage (Un): 400 V AC
- Poles: 4-Pole (Three-phase + Neutral)
- Residual Current Type: Type AC (detects sinusoidal AC leakage currents only)
- Rated Residual Current (IΔn): 30 mA
- Product Type: RCCB – Residual Current Circuit Breaker
- Tripping Mechanism: Electromechanical
- Mounting: DIN rail
Technical Information
- Number: 5SV4345-0
- EAN: 4047624418367
- Commodity Code: 85362090
- Catalog Reference: LV10
- Product Group: 5510
- Group Code: P310
- Lifecycle Status: PM300 – Active Product
Applications
- Provides residual current protection in high-capacity circuits up to 125 A
- Suitable for residential, commercial, and industrial installations where Type AC devices are permitted
- Offers enhanced personal protection with 30 mA sensitivity, reducing risk of electric shock
- Must be installed in compliance with local/national electrical regulations
Summary:
The Siemens 5SV4345-0 RCCB is a robust 125A, 4-pole protective device with 30mA sensitivity, ideal for preventing electric shocks and fire hazards caused by earth leakage currents. As a Type AC device, it is restricted in some countries—compliance with national installation standards is mandatory. For projects requiring a high-capacity RCCB, this unit delivers reliable protection in permitted applications.
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 is an RCBO used?
✅ RCBOs (Residual Current Circuit Breakers with Overcurrent protection) are commonly used in various residential, commercial, and industrial applications. Typical use cases include power distribution boards, emergency lighting circuits, HVAC (Heating, Ventilation, and Air Conditioning) systems, socket outlets, and swimming pool equipment. RCBOs are ideal for protecting individual circuits where both earth fault and overcurrent protection are required.
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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