Product Description

Siemens 3NA78020RC HRC Fuse 4A 500V AC DIN Type

The Siemens 3NA78020RC HRC Fuse is a premium-quality low-voltage DIN-type fuse link designed to deliver reliable protection against overloads and short-circuit faults in industrial and commercial electrical systems. As a part of the highly trusted Siemens SENTRON 3NA series, this fuse is engineered to safeguard sensitive electrical circuits, automation systems, control panels, switchgear assemblies, and power distribution networks from potentially damaging fault currents.

Featuring a rated current of 4A, rated voltage of 500V AC, and an impressive 120kA short-circuit breaking capacity, the Siemens 3NA78020RC provides exceptional fault-clearing performance for critical low-current applications. Siemens SENTRON HRC fuse technology is widely used in industrial power distribution and control systems where dependable circuit protection and operational reliability are essential.

Available through SBSmart.in, the Siemens 3NA78020RC combines German engineering excellence with industrial-grade durability, making it an ideal choice for panel builders, OEMs, electrical contractors, automation integrators, and maintenance professionals across India.

Advanced Protection for Electrical Systems

Electrical installations are continuously exposed to overload conditions and short-circuit faults that can cause equipment failure, production losses, and costly downtime. The Siemens 3NA78020RC HRC Fuse is specifically designed to interrupt excessive currents rapidly before they can damage connected electrical equipment.

This fuse is suitable for protecting:

• Electrical Distribution Panels
• PLC Control Panels
• Industrial Switchboards
• Automation Systems
• Instrumentation Circuits
• Control Circuits
• Manufacturing Equipment
• Distribution Boards
• Utility Installations
• Commercial Electrical Systems

Its advanced current-limiting characteristics help reduce thermal and mechanical stress on electrical components, improving overall system reliability and extending equipment lifespan.

High Breaking Capacity for Maximum Safety

One of the most significant advantages of the Siemens 3NA78020RC is its 120kA short-circuit breaking capacity. This high rupturing capability allows the fuse to safely interrupt severe fault currents while maintaining system integrity and protecting valuable electrical assets.

The fuse delivers:

• Fast fault interruption
• Enhanced circuit protection
• Reduced equipment damage
• Improved workplace safety
• Lower maintenance costs
• Increased operational reliability

The Siemens 3NA series is specifically designed for low-voltage distribution and control applications requiring dependable overload and short-circuit protection. Similar products in the Siemens 3NA range are rated for 500V AC operation and feature a 120kA breaking capacity with DIN-type construction.

Compact NH000 DIN Design

The Siemens 3NA78020RC is manufactured in a compact NH000 (Size 000) DIN configuration, ensuring compatibility with standard DIN fuse bases and switch-fuse units commonly used in industrial electrical installations.

Key Features

• NH000 Size Construction
• Rated Current: 4A
• Rated Voltage: 500V AC
• Short-Circuit Breaking Capacity: 120kA
• Utilization Category: gG
• Combined Indicator
• Live Grip Lugs
• DIN Standard Compatibility
• High Current-Limiting Performance
• Low Power Losses
• Easy Installation and Replacement

Its compact footprint allows seamless integration into modern electrical panels while maintaining superior protection performance.

Applications of Siemens 3NA78020RC

The Siemens 3NA78020RC HRC Fuse is widely used in:

• Power Distribution Systems
• Electrical Switchboards
• PLC Panels
• MCC & PCC Panels
• Control Panels
• Industrial Automation Systems
• Manufacturing Plants
• Infrastructure Projects
• Commercial Buildings
• Process Industries
• Instrumentation Systems
• Renewable Energy Applications

Its versatility makes it suitable for a broad range of industrial and commercial electrical protection applications.

Why Buy Siemens 3NA78020RC from SBSmart?

SBSmart is a trusted supplier of industrial electrical products, automation solutions, and circuit protection devices. When purchasing the Siemens 3NA78020RC HRC Fuse from SBSmart, customers benefit from:

• Genuine Siemens products
• Competitive industrial pricing
• Fast order processing
• Expert technical support
• Reliable product availability
• Secure purchasing experience
• Professional customer assistance

Our commitment is to deliver authentic industrial products that meet the highest standards of quality, reliability, and safety.

Reliable Performance for Long-Term Protection

The Siemens 3NA78020RC HRC Fuse is engineered to provide dependable protection in demanding industrial environments. Its robust construction, excellent current-limiting characteristics, and high breaking capacity make it an ideal solution for protecting electrical systems against overloads and short-circuit faults.

For engineers, OEMs, maintenance professionals, and industrial operators, the Siemens 3NA78020RC offers a cost-effective and reliable protection solution that supports operational continuity, equipment safety, and long-term performance.

Choose the Siemens 3NA78020RC HRC Fuse from SBSmart and protect your electrical infrastructure with trusted Siemens SENTRON technology.