Bussmann TCF20RNW Eaton TCF Series Class CF Time-Delay Fuse, 20A, 690V

Bussmann TCF20RNW Eaton TCF Series Class CF Time-Delay Fuse, 20A, 690V, 50kAIC

The Bussmann TCF20RNW is a genuine Eaton series TCF Class CF time-delay fuse rated 20 A at 690 V, engineered for chassis mounting on a standard 35 mm DIN rail. Built with a glass-filled PES body in black, this non-indicating, blade-end fuse carries a 50 kAIC interrupt rating and a time-delay characteristic of 10 seconds at 500% overload, making it well suited for demanding 50 Hz and 60 Hz industrial control panels and power distribution circuits where dependable dual-frequency, dual-standard performance is required. As a standard Class CF device, it is designed as a direct fit for compatible fuse holders and blocks already specified for this fuse class.

Key Features

• Amp Rating: 20 A blade-end fuse sized for standard Class CF fuse holders and disconnect blocks.
• Voltage Rating: 690 V rating supports use in higher-voltage industrial control and distribution circuits.
• Interrupt Rating: 50 kAIC short-circuit current rating for demanding fault-current environments.
• Time-Delay Characteristic: Opens in 10 seconds at 500% of rated current, riding through momentary motor and transformer inrush without nuisance opening.
• Durable Construction: Glass-filled PES body resists heat and mechanical stress for long service life in panel environments.
• Chassis Mounting: Chassis-mount, blade-end design fits a standard 35 mm DIN rail for fast, standardized panel installation.
• Frequency Rating: Dual-rated for both 50 Hz and 60 Hz applications, with a black, non-indicating housing for standard panel builds.
• Dimensions: Compact 1.88 x 0.75 x 1.75 in body fits standard Class CF fuse blocks and holders without modification.

Technical Specifications

• Refer to manufacturer documentation for complete technical specifications.

Typical Applications

• Industrial Control Panels and Motor Control Centers
• DIN-Rail Mounted Fuse Blocks and Disconnect Assemblies
• Class CF Fuse Holders and Chassis-Mount Assemblies
• Power Distribution Circuits Requiring Time-Delay Protection
• OEM Equipment and Panel Builder Assemblies
• Renovation and New Construction Panel Upgrades

Why Bussmann?

Bussmann by Eaton is a recognized name in circuit protection, and the TCF20RNW reflects that standard with a glass-filled PES chassis, a 50 kAIC interrupt rating, and a time-delay design built for demanding industrial duty. Its dual 50 Hz/60 Hz rating and standard 35 mm DIN rail, blade-end format make it a dependable, code-compliant choice for panel builders and maintenance teams standardizing on Class CF fuse installations. Choosing the genuine Bussmann TCF20RNW helps ensure consistent fit, rated performance, and long-term reliability across your Class CF fuse and chassis assemblies.