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Siemens 3NW7121 SENTRON Cylindrical Fuse Holder

Siemens SENTRON 2-pole cylindrical fuse holder.

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ManufacturerSiemens

Part number3NW7121

Type Cylindrical Fuse Holder

Manufacturer Siemens

Series SENTRON

Part Number 3NW7121

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Veteran-owned

CAGE: 9NK75

SENTRON Series Cylindrical Fuse Type 2-Pole Configuration 50A Current Rating 690V AC Voltage Rating Robust Construction

Product description

The Siemens 3NW7121 is a SENTRON series cylindrical fuse holder designed for 14x51mm fuses. This 2-pole holder has a rated current of 50 Amperes and a maximum AC voltage rating of 690 Volts. It is engineered for reliable protection in various electrical applications.

This fuse holder is ideal for industrial control panels, power distribution systems, and machinery where overcurrent protection is critical. It is commonly used in manufacturing plants, automation systems, and renewable energy installations.

As a veteran-owned surplus parts distributor, Stanlo Automation offers the Siemens 3NW7121 with a commitment to quality and service. We provide access to essential automation components, ensuring your operations continue smoothly.

Technical specifications

Type	Cylindrical Fuse Holder
Manufacturer	Siemens
Series	SENTRON
Part Number	3NW7121
Poles	2
Fuse Size	14x51 mm
Rated Current (In)	50 A
Rated Voltage (Un AC)	690 V

Common applications

Industrial Control Panels

Power Distribution

Machinery Protection

Automation Systems

Manufacturing Plants

Electrical Infrastructure

Compatible systems

Industrial electrical systems Control cabinets Power distribution units

Also known as

Siemens 3NW7121 Fuse Holder SENTRON 14x51 Fuse Holder Siemens 2-Pole Fuse Holder

Replaces / compatible with

Designed to house cylindrical fuses for overcurrent protection. Compatible with standard 14x51mm fuses.

Technical note

Expert tip

Ensure proper fuse selection for the 14x51mm dimensions and 50A rating to guarantee effective circuit protection.

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Frequently asked questions

What is the maximum voltage rating for the Siemens 3NW7121 fuse holder?

The Siemens 3NW7121 SENTRON cylindrical fuse holder has a maximum AC voltage rating of 690 Volts. This ensures it can be safely used in high-voltage industrial applications.