Ferraz TR20R Fuse

Ferraz TR20R Fuse, TR, 20A, 250VAC, for Square D AC Disconnect

American Power Fuses
TRI-ONIC®
TR and TRS (Class RK5 TD)

Tri-onic® SmartSpot® fuses now provide an optional visual open fuse indicator. With advanced material technology added to the existing product line the TR current-limiting time-delay fuses are engineered for overcurrent protection of motors and transformers, service entrance equipment, feeder and branch circuits. Tri-Onic fuse's proven time-delay characteristic safely handles harmless starting currents and inrush currents associated with today's motors and transformers.

Features/Benefits

• Solid State SmartSpot Indicator
• Time delay for motor start-ups and transformer inrush currents without nuisance opening
• Current limiting for low peak let-thru current
• Rejection-style design prevents replacement errors (when used with recommended fuse blocks)
• Easy-to-read label for quick recognition and replacement
• Metal-embossed date and catalog number for traceability and lasting identification
• Fiberglass body provides dimensional stability in harsh industrial settings
• Brass end-caps (blade-style) for cooler operation and superior performance
• High-grade silica filler ensures fast arc quenching and high current limitation

Ratings

TR
AC: 1/10 to 600A  250VAC, 200kA I.R.
DC: 1/10 to 2 8/10A and 35 to 400A, 250VD, 20 A.I.R
3 to 30A & 450 to 600A,
160VDC, 20kA I.R.

TRS
AC: 1/10 to 600A, 600VAC, 200kA I.R.
DC: 1/10 to 12A, 600VDC, 20kA I.R.
70 to 600A, 600VDC, 100kA I.R.
15 to 60A, 300VDC, 20kA I.R.

Highlights

• Time Delay
• Current Limiting
• AC & DC Rated

Applications

• Motor Circuits
• Mains
• Feeders
• Branch Circuits
• Transformers
• Service Entrance Equipment
• General-purpose Protection

Approvals

T2989T2955
• UL Listed to Standard 248-12
• CSA Certified to Standard C22.2 No. 248.12
• DC Listed to UL Standard 198L