Ferraz Shawmut ATDR30 Fuse

Ferraz Shawmut ATDR30 Time Delay Fuse

Ferraz Shawmut ATDR30 Time Delay Fuse – Premium Amp-Trap2000® Class CC Circuit Protection

The Ferraz Shawmut ATDR30 Time Delay Fuse (engineered by industry-leading circuit safety specialist Mersen under the Amp-Trap2000® banner, part number G216758) is a high-performance, industrial-grade cartridge fuse. As a premier component within the highly regulated UL Class CC family, this 30 A fuse is explicitly designed to safeguard small motors, control transformers, and demanding branch circuits. By integrating a highly precise time-delay mechanism, it easily handles extreme transient inrush currents while delivering instantaneous, current-limiting protection against catastrophic short circuits.

As illustrated in the product image, the Ferraz Shawmut ATDR30 Time Delay Fuse is encased in a premium, non-conductive cylindrical fiberglass body with robust metal ferrule end caps. The bottom terminal cap incorporates a specialized physical rejection tip button. This unique structural element ensures compliance with National Electrical Code (NEC) regulations by preventing the insertion of lesser-rated or standard midget-class fuses into a dedicated Class CC fuse block or disconnect switch, maintaining the intended level of system security.

Key Features of the Ferraz Shawmut ATDR30 Time Delay Fuse

• SmartTime-Delay Formulation: Specially engineered to tolerate heavy, temporary inductive inrush currents caused by motor startups and transformer energization, completely eliminating unnecessary nuisance tripping.

• Superior Current-Limiting Class CC Performance: Drastically reduces downstream component stress during short-circuit events by halting the fault current wave well before it reaches its destructive peak ($I_{peak}$).

• Physical Rejection Tip Configuration: Features a distinctive button-style end cap that guarantees exact mechanical fitment in safety-compliant Class CC fuse holders, preventing unsafe field substitutions.

• High-Capacity Interrupting Rating: Safely clears extreme electrical faults up to 200 kA AC and 100 kA DC, offering a massive buffer of protection for complex industrial grids.

• Rugged Fiberglass Construction: Built utilizing top-tier insulating materials that resist physical deformation and prevent internal tracking in highly humid or high-vibration factory settings.

Common Applications and Industrial Usage

Thanks to its compact size and outstanding inductive-load tolerance, the Ferraz Shawmut ATDR30 Time Delay Fuse is widely used in high-density industrial control enclosures:

• Small Motor Branch Circuits: Delivers space-saving, code-approved branch circuit defense for fractional-horsepower AC motors and small fans.

• Control Circuit Transformers: Safely buffers the severe magnetic inrush currents typical of industrial control transformers (CCATs).

• Industrial Control Panels (ICPs): Embedded within DIN-rail mounted fuse blocks to protect programmable logic controllers (PLCs), contactor coils, and auxiliary power nodes.

• HVAC Distribution Panels: Deployed across commercial heating, ventilation, and air conditioning electrical layouts to rapidly isolate localized electrical malfunctions.

• Lighting and Heating Controls: Acts as a primary current-limiting buffer for commercial lighting controllers and resistive heating arrays.

Technical Specifications

The electrical, mechanical, and regulatory standards of the Ferraz Shawmut ATDR30 Time Delay Fuse are tightly controlled to meet strict global benchmarks:

Installation and Safety Guidelines

Warning: Industrial power grids carry lethal high-voltage energy. Always de-energize and implement lock-out/tag-out procedures on the main upstream power feed before installing or replacing a fuse link.

• Verify Holder Clamping: Install the Ferraz Shawmut ATDR30 Time Delay Fuse exclusively into dedicated Class CC fuse clips or modular holders designed to receive the rejection tip button.

• Never Force Fitment: Do not shave down or modify the rejection tip to force the fuse into a standard midget-class fuse holder. Altering safety components voids certifications and introduces severe safety hazards.

• Ensure Matching Systems: When executing multi-phase maintenance, always replace fuses as matching sets to maintain uniform electrical resistance across all active lines.

To review official electrical safety declarations, time-current clearing curves, and complete component catalogs, check the global Mersen Electrical Power Protection Support Directory.

To request a fast commercial quote or evaluate real-time regional warehouse stock availability for bulk procurement needs, please connect with our sales branch via the Control Qatar Contact Page.