The Siemens 3NE1820-0 is a genuine SITOR semiconductor protection fuse designed for high-speed protection of power semiconductor devices and electrical equipment. It features an NH000 fuse size, 80 A rated current, 690 V AC rated voltage, and gS operating class. Siemens specifies the fuse with blade contacts for installation in compatible LV HRC fuse bases and switch disconnectors.
This Siemens SITOR fuse provides reliable short-circuit and overcurrent protection in applications involving power semiconductors, converters, rectifiers, inverters, industrial drives and power electronic systems. The fuse has a 100 kA switching capacity according to IEC 60947-2, with a specified power loss of approximately 8 W at rated current.
The 3NE1820-0 is part of the Siemens SITOR / SENTRON low-voltage high-speed fuse range and is listed as an active product by Siemens. It has a net weight of approximately 0.130 kg and can be installed in any mounting position, with vertical mounting preferred.
Brand: Siemens
Product Family: SITOR
Part Number: 3NE1820-0
Product Type: Semiconductor Protection Fuse
Fuse Design: SITOR LV HRC Fuse Link
Rated Current: 80 A
Rated AC Voltage: 690 V AC
Rated DC Voltage: 250 V DC
Operating Class: gS
Fuse Size: NH000
Fuse System: NH
Connection Type: Blade Contacts
Contact Design: Silver-Plated Blade Contacts
Front Indicator: None
Breaking Capacity: 100 kA according to IEC 60947-2
Power Loss: Approx. 8 W
Mounting: LV HRC Fuse Bases / Switch Disconnectors
Net Weight: Approx. 0.130 kg
Mounting Position: Any; preferably vertical
Operating Temperature: -20°C to +50°C
Product Lifecycle: PM300 – Active Product
The Siemens 3NE1820-0 SITOR fuse is suitable for:
Semiconductor protection
Power semiconductor protection
Industrial drives
Variable frequency drives
Motor drive systems
Power converters
Frequency converters
Rectifier systems
Inverter applications
Industrial automation systems
Power electronic equipment
Electrical control panels
Industrial control cabinets
Machine automation systems
Power distribution equipment
Semiconductor switching equipment
Motor control systems
Industrial power supplies
Designed for semiconductor protection applications
High-speed SITOR fuse technology
80 A rated current
Suitable for systems up to 690 V AC
NH000 compact fuse size
gS operating class
100 kA switching capacity according to IEC 60947-2
Robust LV HRC fuse construction
Silver-plated blade contacts
Suitable for compatible Siemens fuse bases and switch disconnectors
Helps protect sensitive power electronic components against excessive current
Suitable for industrial drives and converter applications
Genuine Siemens replacement component
Suitable for industrial maintenance and OEM applications
The Siemens SITOR 3NE1820-0 is designed for applications where conventional general-purpose fuses may not provide the required protection for power semiconductor equipment. Its gS operating class, 80 A current rating and 690 V AC voltage rating make it suitable for demanding industrial power-electronic applications.
The fuse uses blade contacts in NH000 size, allowing installation in compatible low-voltage HRC fuse bases and switch disconnectors. Siemens specifies a 100 kA switching capacity according to IEC 60947-2, providing high short-circuit interruption capability for suitable systems.
It is particularly suitable for industrial drives, converters, rectifiers, inverters, motor-control systems, automation equipment and power semiconductor protection.
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Q1. What is Siemens 3NE1820-0?
The 3NE1820-0 is a Siemens SITOR semiconductor protection fuse with an 80 A rating and 690 V AC rated voltage.
Q2. What is the rated current of 3NE1820-0?
The rated current is 80 A.
Q3. What is the AC voltage rating?
The fuse is rated for 690 V AC.
Q4. What is the DC voltage rating?
The Siemens datasheet specifies 250 V DC for this fuse.
Q5. What is the operating class?
The operating class is gS.
Q6. What fuse size is used?
The 3NE1820-0 uses the NH000 fuse size.
Q7. What type of contacts does the fuse have?
It uses blade contacts, with Siemens specifying silver-plated switching contacts.
Q8. What is the breaking capacity?
Siemens specifies a 100 kA switching capacity according to IEC 60947-2.
Q9. Is 3NE1820-0 suitable for semiconductor protection?
Yes. It belongs to the Siemens SITOR fuse range intended for semiconductor protection applications.
Q10. Where can the fuse be installed?
It is designed for installation in compatible LV HRC fuse bases or switch disconnectors.
Q11. What is the power loss of the fuse?
The specified power loss is approximately 8 W at rated current.
Q12. What is the approximate weight?
The Siemens Industry Mall lists the net weight at approximately 0.130 kg.
Q13. What is the operating temperature range?
The specified operating ambient temperature range is approximately -20°C to +50°C.
Q14. Does the fuse have a front indicator?
The 3NE1820-0 is specified without a front indicator.
Q15. What applications use semiconductor protection fuses?
They are commonly used for protecting power semiconductors in converters, inverters, rectifiers, industrial drives and other power-electronic equipment.
Q16. Can 3NE1820-0 be used in industrial drives?
Yes, provided the fuse rating, protection requirements and installation arrangement match the drive manufacturer's specifications.
Q17. Is 3NE1820-0 a circuit breaker?
No. It is a fuse link, not a circuit breaker.
Q18. Is 3NE1820-0 an active Siemens product?
Yes. Siemens Industry Mall currently lists 3NE1820-0 as PM300: Active Product.
Q19. What is the Siemens product family?
It belongs to the SITOR range of Siemens low-voltage high-speed/semiconductor protection fuses.
Q20. Where can I buy Siemens 3NE1820-0 in India?
The Siemens SITOR 3NE1820-0 semiconductor protection fuse can be sourced from industrial electrical and automation suppliers, subject to current stock and availability.
| Specification | Details |
|---|---|
| Product Name | Siemens SITOR Semiconductor Fuse Link |
| Model Number | 3NE18200 |
| SKU | 3NE18200 |
| Brand | Siemens |
| Series | SITOR 3NE1 |
| Product Type | Semiconductor Protection Fuse |
| Fuse Size | NH1 |
| Rated Current | 200 A |
| Rated Voltage AC | 690 V AC |
| Operating Class | gS |
| Contact Type | Blade Contacts |
| Protection Type | Overload & Short-Circuit Protection |
| Application | Semiconductor & Power Electronics Protection |
| Mounting Type | NH Fuse Base Compatible |
| Standard | IEC 60269-2 |
| Suitable For | IGBT, Thyristor, SCR & Power Semiconductor Protection |
| Industry Applications | Drives, UPS, Inverters, Converters & Automation Systems |
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