Description
The Ferraz Shawmut TRS30R is a 30A Tri-Onic time-delay fuse from Mersen’s TRS-R series. It provides current-limiting overcurrent protection for compatible industrial electrical systems, including motor and transformer circuits.
Its time-delay characteristic helps accommodate normal startup currents and transformer inrush, reducing unnecessary fuse operation under suitable operating conditions. The Class RK5 design is intended for use with compatible fuse holders and protection equipment.
Technical Specifications
| Specification | Details |
|---|---|
| Brand | Ferraz Shawmut / Mersen |
| Series | Tri-Onic TRS-R |
| Model | TRS30R |
| Rated Current | 30A |
| Rated Voltage | 600V AC |
| Rated DC Voltage | 300V DC |
| Fuse Class | Class RK5 |
| Operating Characteristic | Time-Delay |
| Protection Type | Current-Limiting |
| Interrupting Rating | 200kA AC / 20kA DC, Subject to the Manufacturer’s Specified Conditions |
| Connection | Ferrule Ends |
| Construction | Cylindrical Fuse Body |
| Mounting | Compatible Class RK5 Fuse Holder |
| Standards | UL 248-12 and CSA C22.2 No. 248.12, According to Manufacturer Documentation |
Key Features
– 30A current rating for compatible circuits
– 600V AC and 300V DC ratings
– Class RK5 time-delay performance
– Current-limiting protection against overcurrent faults
– Helps accommodate normal motor-starting and transformer-inrush currents
– Ferrule-end construction for compatible fuse holders
Typical Applications
The TRS30R may be suitable for the following applications when correctly specified:
– Motor circuit protection
– Transformer protection
– Industrial feeder circuits
– Branch circuits
– Service entrance equipment
– General industrial electrical equipment
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