Siemens SITOR Fuse link w/ blade contacts, NH00, 100A, gS, 690VAC, 250VDC Part number 3NE1021-0

Product Overview

The Siemens SITOR fuse link 3NE1021-0 is a high-performance NH00-size fuse designed for use in industrial low-voltage power distribution systems. It features blade contacts for easy installation, a rated current of 100 A, and rated voltages of up to 690 V AC and 250 V DC. With front indicator for fuse status and robust HRC (high-rupturing capacity) design, it provides reliable protection and easy maintenance in electrical switchgear.

Key Features

• Rated Current: 100 A continuous operation
• Size: NH00 fuse link size
• Rated Voltage: Up to 690 V AC / 250 V DC
• High Breaking Capacity: Designed for major fault current interruption
• Blade Contacts: Silver-plated for low resistance and reliable connection
• Front Indicator: Visual fuse status for maintenance convenience
• Compact Design: Suitable for distribution and motor control panels

Technical Specifications

• Product Series: SENTRON SITOR fuse links
• Rated Operational Current (AC): 100 A
• Rated Voltage (AC): 690 V
• Rated Voltage (DC): 250 V
• Size of Fuse System: NH00 (per DIN EN 60269-1)
• Operating Class: gS
• Rated Switching Capacity: up to 100 kA (per IEC 60947-2) depending on installation conditions
• Power Loss: 10 W maximum per pole at rated current
• Ambient Temperature (Operating): –20 °C to +50 °C
• Mounting Position: Any (preferably vertical for optimal performance)
• Weight: Approx. 205 g
• Country of Origin: Germany

Compliance & Certifications

• IEC 60947-2 compliant: Meets low-voltage switchgear and control gear standards
• CE Marking: Conforms to EU directives for electrical equipment
• RoHS Compliant: Free from hazardous substances in manufacturing
• UL/CSA Certification: (Where applicable; for international market compatibility)
• Product Class: Industrial HRC fuse link for use in switchgear

Applications

Ideal for protecting power distribution systems, motor feeders, switchboards and industrial control panels where fault current interruption and high reliability are required. Commonly used in manufacturing plants, utilities, machinery installations and commercial high-current equipment requiring NH00-size fuse links and fault protection.