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Siemens 3NW7221 SENTRON Cylindrical Fuse Holder

Siemens SENTRON 2-pole cylindrical fuse holder, 22x58mm.

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ManufacturerSiemens

Part number3NW7221

Type Cylindrical Fuse Holder

Manufacturer Siemens

Series SENTRON

Part Number 3NW7221

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SENTRON Series Cylindrical Fuse Type 2-Pole Configuration 100A Current Rating 690V AC Voltage Rating Heavy-Duty Design

Product description

The Siemens 3NW7221 is a robust SENTRON series cylindrical fuse holder designed for 22x58mm fuses. This 2-pole unit is rated for a substantial 100 Amperes and a maximum AC voltage of 690 Volts, providing reliable overcurrent protection for higher power applications.

This fuse holder is engineered for use in heavy-duty industrial environments, such as main power distribution boards, large motor circuits, and critical infrastructure protection. Its durable construction ensures longevity and safety in demanding operational conditions.

Stanlo Automation, your veteran-owned source for surplus industrial parts, offers the Siemens 3NW7221. We ensure you get the components you need to maintain and optimize your automation systems.

Technical specifications

Type	Cylindrical Fuse Holder
Manufacturer	Siemens
Series	SENTRON
Part Number	3NW7221
Poles	2
Fuse Size	22x58 mm
Rated Current (In)	100 A
Rated Voltage (Un AC)	690 V

Common applications

Power Distribution Boards

Industrial Machinery

High Power Circuits

Electrical Infrastructure

Manufacturing Facilities

Control Systems

Compatible systems

Industrial electrical systems Control cabinets Power distribution units

Also known as

Siemens 3NW7221 Fuse Holder SENTRON 22x58 Fuse Holder Siemens 2-Pole Heavy Duty Fuse Holder

Replaces / compatible with

Provides high-current overcurrent protection for 22x58mm fuses in 2-pole configurations within industrial electrical systems.

Technical note

Expert tip

Ensure adequate ventilation around the 3NW7221 fuse holder when operating at its full 100A rating to prevent overheating.

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Frequently asked questions

What fuse size does the Siemens 3NW7221 support?

The Siemens 3NW7221 SENTRON fuse holder is designed to accommodate 22x58mm cylindrical fuses. This size is suitable for applications requiring higher current and voltage ratings.