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5SU1353-1KK20
RCBO, 4.5 kA, 1-pole+N, type AC, 30 mA, C char, In: 20 A, Un AC: 230 V, use of these devices is not permitted in all countries. Observe national installation regulations!
- Stock status:
- Call for availability
- Manufacturer:
- Siemens
- Product code:
- 5SU1353-1KK20
Main documents
- Product datasheet
- Instruction sheet
- Catalogue
Related products
| Product | |
| Article Number (Market Facing Number) | 5SU1353-1KK20 |
| Product Description | RCBO, 4.5 kA, 1-pole+N, type AC, 30 mA, C char, In: 20 A, Un AC: 230 V, use of these devices is not permitted in all countries. Observe national installation regulations! |
| Product family | Not available |
| Product Lifecycle (PLM) | PM300:Active Product |
| Price data | |
| Region Specific PriceGroup / Headquarter Price Group | 11D / 1BB |
| List Price | Show prices |
| Customer Price | Show prices |
| Surcharge for Raw Materials | None |
| Metal Factor | None |
| Additional Product Information | |||
| EAN | 4001869306377 | ||
| UPC | Not available | ||
| Commodity Code | 85362010 | ||
| LKZ_FDB/ CatalogID | LV10.1 | ||
| Product Group | 5515 | ||
| Group Code | P310 | ||
| Country of origin | Romania | ||
| Compliance with the substance restrictions according to RoHS directive | Since: 01.06.2006 | ||
| 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 | eb27b5e0-350c-4bd4-a2dc-ac7e3d1ab025 | ||
Product Description
5SU1353-1KK20
The Siemens 5SU1353-1KK20 is a 1-pole + Neutral Residual Current Operated Circuit Breaker with Overcurrent Protection (RCBO) that combines protection against earth leakage currents and overcurrent faults such as overloads and short circuits in a single, compact unit. It is designed for use in single-phase 230V systems, offering efficient safety in circuits with moderate inrush currents, thanks to its C-characteristic tripping curve.
This device provides Type AC residual current protection, meaning it detects pure alternating current (AC) leakage. It is suitable for a wide range of residential and commercial applications but must be installed in accordance with local electrical codes.
> ⚠️ Important: The use of this device is not permitted in all countries. Always follow national installation regulations.
Key Features and Specification
- Rated Current (In): 20 A
- Rated Voltage (Un): 230 V AC
- Breaking Capacity: 4.5 kA
- Poles: 1P + N
- Tripping Curve: C Characteristic (moderate inrush current circuits)
- Residual Current Type: Type AC (detects pure AC leakage currents)
- Rated Residual Current: 30 mA
- Energy Limiting Class: 1
Technical Information
- Number: 5SU1353-1KK20
- EAN: 4001869306377
- Commodity Code: 85362010
- Catalog Reference: LV10.1
- Product Group: 5515
- Group Code: P310
- Lifecycle Status: PM300 – Active Product
Applications
- Designed for use in residential and commercial single-phase installations
- Suitable for protecting socket outlets, lighting, and small motor-driven devices
- Helps ensure safety by preventing electric shock, fire risks, and equipment damage
- Ideal for circuits with devices that generate moderate switching surges
Summary:
The Siemens 5SU1353-1KK20 RCBO provides reliable and compact protection for 230V single-phase circuits. With a 20A current rating, 30 mA earth leakage detection, and C-curve tripping, it ensures comprehensive safety for both users and equipment. It is a practical choice for general-purpose circuits, though compliance with local installation laws is essential due to restrictions in certain regions.
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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