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5SB251
DIAZED fuse link 500 V for cable and line protection gG, Size DII, E27, 10A
- Stock status:
- Call for availability
- Manufacturer:
- Siemens
- Product code:
- 5SB251
Main documents
- Product datasheet
- Instruction sheet
- Catalogue
Related products
| Product | |
| Article Number | 5SB251 |
| Product Description | DIAZED fuse link 500 V for cable and line protection gG, Size DII, E27, 10A |
| Product family | SENTRON DIAZED Fuse Systems |
| Product Lifecycle (PLM) | PM300:Active Product |
| Price data | |
| Price Group | 13I |
| List Price | Show prices |
| Customer Price | Show prices |
| Surcharge for Raw Material | see also metal factor (further details are available on the help page) |
| Metal Factor | L-P—– |
| Additional Product Information | ||
| EAN | 4001869002361 | |
| UPC | Not available | |
| Commodity Code | 85361010 | |
| LKZ_FDB/ CatalogID | LV10.1 | |
| Product Group | 5535 | |
| Group Code | P310 | |
| Country of origin | Poland | |
| Compliance with the substance restrictions according to RoHS directive | Since: 01.06.2006 | |
| 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
Siemens
Siemens, a global leader in the electrical and industrial automation sectors, is renowned for its high-quality products and solutions, ranging from electrical equipment and automation systems to energy management and telecommunications technologies.
With a strong focus on innovation, Siemens provides cutting-edge solutions that enhance operational efficiency, sustainability, and productivity across various industries. From advanced circuit breakers and switchgear to smart grid solutions, Siemens continues to shape the future of technology, delivering reliable and energy-efficient products that meet the evolving needs of businesses and industries worldwide.
Siemens Miniature Circuit Breakers (MCBs) from the SENTRON portfolio provide essential circuit protection for residential, commercial, and industrial applications. They are designed to automatically disconnect electrical circuits in the event of overload or short circuit, preventing damage to wires, cables, and connected devices.
As electrical demands increase, Siemens MCBs ensure safe and efficient power distribution, reducing the risk of downtime and costly equipment failures.
Circuit Protection & Surge Protection
Siemens Surge Protection Devices (SPDs) safeguard electrical systems from voltage spikes, lightning strikes, and transient overvoltages that can damage sensitive equipment. Part of the SENTRON portfolio, Siemens SPDs ensure reliable protection for residential, commercial, and industrial applications. These devices divert excess voltage safely to the ground, preventing disruptions and extending the lifespan of electrical components.
With Siemens SPD solutions, businesses and homeowners can prevent costly downtime, reduce equipment failures, and enhance electrical safety. Protect your power network with Siemens Surge Protection Devices – ensuring stable and secure electrical performance!
5SB251
The Siemens 5SB251 is a DIAZED fuse link designed for cable and line protection in electrical installations. This gG-type fuse ensures reliable overload and short-circuit protection, making it ideal for industrial, commercial, and residential applications. With a current rating of 10 A and a voltage rating of 500 V, it provides secure and efficient circuit protection in various electrical systems.
Key Features and Specification
- Voltage Rating: 500 V
- Fuse Type: gG (general-purpose fuse for overload and short-circuit protection)
- Size: DII
- Socket Type: E27
- Current Rating: 10 A
Applications:
- Cable and Line Protection
- Short Circuit and Overload Protection
- Industrial, Commercial, and Residential Electrical Systems
- Power Distribution Networks
- Fuse Panels and Circuit Protection Systems
Product Details:
- Product Family: SENTRON DIAZED Fuse Systems
- Lifecycle Status: PM300 – Active Product
Summary:
The Siemens 5SB251 is a 10 A DIAZED fuse link designed for cable and line protection in electrical systems. Its gG classification ensures protection against overloads and short circuits, making it an essential component in industrial, commercial, and residential electrical installations. With a 500 V rating, DII size, and E27 socket, this fuse link is a highly reliable and efficient solution for power distribution safety.
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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