Siemens Sitor Fuse link, slotted blade contacts, NH1, 1000V, 450A

Product Overview

The Siemens 3NE3233 is a high-performance SITOR semiconductor protection fuse designed for the most demanding applications requiring ultra-fast and reliable protection. This NH1 size fuse link features slotted blade contacts and provides exceptional overload and short circuit protection for power semiconductors, cables, wires, and power rails. Engineered specifically for critical semiconductor protection in industrial power electronic systems.

Key Features

• Operating Class: aR (partial-range semiconductor protection)
• Rated Current: 450 A
• Rated Voltage: 1000 V AC
• Fuse Size: NH1 according to IEC 60269-2
• Rated Switching Capacity: 100 kA
• Front Indicator: Visual fuse status indication for immediate fault detection
• Slotted Blade Contacts: Compatible with M10 screw fixing or NH fuse bases
• Ultra-Fast Acting: Extremely fast switch-off characteristic compared to conventional LV HRC fuses

Technical Specifications

• Product Family: LV HRC Design
• Utilization Category: aR (partial-range semiconductor protection)
• Standard Compliance: IEC 60269-2, IEC 60269-4-1
• Fixing Centers: 110mm
• Overall Length: 135mm
• Body Dimensions: 73mm (L) x 52mm (W) x 63.5mm (H)
• Tag Width: 12.5mm
• Tag Type: Slotted, centered orientation
• Net Weight: 0.586 kg (1.292 lb)
• Country of Origin: Greece

SITOR Fuse System Benefits

• Extremely Fast-Acting: Ultra-fast switch-off characteristic specifically designed for semiconductor protection
• Reliable Protection: Power semiconductors are reliably protected even in short-circuit conditions
• Precision Characteristics: Siemens quality standard ensures exceptional characteristic curve accuracy
• Worldwide Approvals: Approved in accordance with IEC and UL standards, with CCC approval for global use
• Versatile Installation: Compatible with LV HRC fuse bases, fuse switch disconnectors, and switch disconnectors with fuses

Applications Critical semiconductor protection in:

• Frequency converters with fuses in input circuits and DC links
• UPS systems and uninterruptible power supplies
• Soft starters for motors
• Power electronic equipment and drives
• Industrial automation systems
• Variable frequency drives (VFDs)
• DC motor drives and controls
• Power conversion systems

Installation & Compatibility

• Compatible with NH fuse bases and load-break switches
• M10 screw fixing capability for secure mounting
• Slotted blade contact design for reliable connections
• Suitable for installation in LV HRC fuse bases
• Compatible with fuse switch disconnectors

Environmental & Compliance

• RoHS Compliant: Since 07/01/2006
• WEEE Directive: Take-back obligation applicable
• REACH Regulation: No SVHC substances currently identified
• Export Control: AL: N / ECCN: N
• EAN: 4011209004825
• Returnable Product: Yes

Product Classification

• eClass: 27-14-20-05
• ETIM: EC000055
• UNSPSC: 39-12-16-28

Packaging Information

• Packaging Dimensions: 7.008 x 7.874 x 3.346 inches (178 x 200 x 85 mm)
• Packaging Quantity: 1 piece

Ordering Information

• Article Number: 3NE3233
• Product Lifecycle: PM300: Active Product
• Product Group: 5540
• Group Code: P310

Download existing graphical data for this product:

Product Datasheet (PDF)

Product Catalog - Ordering Data Overview

SENTRON SITOR Semiconductor Fuses Family

LV HRC Design Fuses Category

Technical Support and Documentation

Fuse Systems Configuration Manual

Fuse Systems Operation Manual

Siemens Fuse Catalog