5ST3010
auxiliary switch, 1 NO+1 NC for miniature circuit breaker 5SL, 5SY, 5SP Incorporated switch 5TL1, RCBO 5SU1, FI 5SV (for 5SU1 handle coupler 5ST3805-1 is required)
- Stock status:
- Call for availability
- Manufacturer:
- Siemens
- Product code:
- 5ST3010
Main documents
- Product datasheet
- Instruction sheet
- Catalogue
Related products
| Product | |
| Article Number (Market Facing Number) | 5ST3010 |
| Product Description | auxiliary switch, 1 NO+1 NC for miniature circuit breaker 5SL, 5SY, 5SP Incorporated switch 5TL1, RCBO 5SU1, FI 5SV (for 5SU1 handle coupler 5ST3805-1 is required) |
| Product family | Additional Components |
| Product Lifecycle (PLM) | PM300:Active Product |
| Price data | |
| Region Specific PriceGroup / Headquarter Price Group | 11E / 1AD |
| List Price | Show prices |
| Customer Price | Show prices |
| Surcharge for Raw Materials | None |
| Metal Factor | L-O—– |
| Additional Product Information | ||
| EAN | 4001869187402 | |
| UPC | Not available | |
| Commodity Code | 85365080 | |
| LKZ_FDB/ CatalogID | LV10.1 | |
| Product Group | 5506 | |
| Group Code | P310 | |
| Country of origin | India | |
| Compliance with the substance restrictions according to RoHS directive | Since: 01.01.2006 | |
| Product class | A: Standard product which is a stock item could be returned within the returns guidelines/period. | |
| 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
5ST3010
The Siemens 5ST3010 is a high-quality auxiliary switch designed for reliable status indication and control in coordination with Siemens miniature circuit breakers and protective devices. It provides 1 normally open (NO) + 1 normally closed (NC) contact configuration and is compatible with the 5SL, 5SY, and 5SP miniature circuit breakers, as well as the 5TL1 incorporated switch, RCBO 5SU1, and FI 5SV residual current devices.
For use with the 5SU1 RCBO, a handle coupler (5ST3805-1) is required.

Key Features and Specification
- Product Code: 5ST3010
- Function: Auxiliary switch (1 NO + 1 NC)
- Compatible With: Miniature Circuit Breakers: 5SL, 5SY, 5SP
- Incorporated Switch: 5TL1
- RCBO: 5SU1 (requires handle coupler 5ST3805-1)
- FI (RCCB): 5SV
- Installation: Side mounting
- EAN: 4001869187402
- Commodity Code: 85365080
- Catalog ID: LV10.1
- Product Group: 5506
- Lifecycle Status: Active Product (PM300)

Applications
- Status signaling (ON/OFF/trip) for MCBs and RCDs
- Remote monitoring and control systems
- Integration with building automation or safety circuits
- Industrial, commercial, and residential panels
Summary:
The Siemens 5ST3010 auxiliary switch offers reliable signaling functionality with 1 NO + 1 NC contact and seamless compatibility with a wide range of Siemens protection devices. It’s a crucial accessory for enhancing system visibility and remote control capabilities in electrical installations.
Frequently Asked Questions
What is MCB protection?
✅ MCB (Miniature Circuit Breaker) protects against overloads and short circuits. Overload protection works via a bimetallic strip (thermal operation), while short-circuit protection uses a tripping coil (electromagnetic operation). This ensures electrical safety in homes, businesses, and industries.
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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