Siemens 3NA3136 NH1 Safety Fuse 160A 500V gG

The Siemens 3NA3136 is a high-performance NH1 size safety fuse engineered for robust industrial electrical protection. Rated for 160A and 500V, this device utilizes a gG characteristic, making it suitable for general-purpose protection against both short-circuits and overloads. Designed with non-insulated gripping lugs, this standard version ensures a secure and reliable connection within power distribution systems, contributing to the overall safety and operational stability of electrical infrastructure.

Advantages

This safety fuse offers exceptional reliability in demanding industrial environments. Its gG characteristic ensures a wide range of protection, effectively handling both low-level overloads and high-level short-circuit currents. The NH1 size is a standard industry format, allowing for seamless integration into existing fuse bases and switchgear. The robust construction of the Siemens 3NA3136 ensures long-term durability and consistent performance, minimizing the risk of unexpected downtime in critical power distribution networks.

Suitable for

• Industrial power distribution boards
• Protection of electrical cables and lines
• Switchgear and control gear assemblies
• General-purpose industrial electrical systems

When it may not be suitable

This fuse is not intended for applications requiring specialized characteristics such as aR (semiconductor protection) or gTr (transformer protection). It should not be used in environments where the voltage exceeds 500V or where the current requirements are significantly different from the 160A rating.

Key specifications

• Size: NH1
• Rated current: 160A
• Rated voltage: 500V AC
• Characteristic: gG (general purpose)
• Connection type: Non-insulated gripping lugs

How to use

The Siemens 3NA3136 must be installed by qualified personnel in accordance with local electrical safety regulations. Before installation, ensure that the power supply is disconnected and the circuit is de-energized. Insert the fuse into a compatible NH1 fuse base using appropriate insulated handling tools. Ensure that the gripping lugs are properly seated and that all connections are tightened to the manufacturer's specified torque to prevent overheating during operation.

What to consider before purchase

• Verify that the current and voltage ratings match your system requirements
• Ensure compatibility with your existing NH1 fuse base
• Check if your application requires insulated or non-insulated gripping lugs
• Confirm that the gG characteristic is appropriate for your specific load type

Usage recommendations

Always replace a blown fuse with one of the exact same type, rating, and characteristic to maintain the integrity of the protection system. Never attempt to repair or bypass a fuse.