Name: Industrial Ferraz Shawmut ATQR30 Fuse | 30A Class CC
Availability: InStock

Ferraz Shawmut ATQR30 Fuse – High-Performance Amp-Trap 2000® Class CC Time-Delay Protection

The Ferraz Shawmut ATQR30 Fuse (engineered globally by Mersen under the item/reference code ATQR30 or F200864) is an industry-leading, small-dimension cartridge fuse certified to strict North American UL Class CC safety standards. Rated for a continuous current of $30\text{ A}$ , this current-limiting fuse is explicitly designed to safeguard control transformers, solenoids, and high-inrush inductive loads. By incorporating an advanced time-delay mechanism, it smoothly absorbs heavy, momentary surge currents during inductive startup cycles without nuisance opening, while offering high-speed isolation during short-circuit events.

As shown in the product image, the Ferraz Shawmut ATQR30 Fuse features a highly stable, non-conductive cylindrical body and tin-plated copper ferrule terminals. A crucial design element is the physical rejection tip button integrated into the bottom end cap. This safety profile satisfies National Electrical Code (NEC) guidelines by preventing standard, lower-rated midget-class fuses from being mistakenly installed into dedicated Class CC fuse blocks, ensuring that the circuit maintains its engineered level of protection.

Key Features of the Ferraz Shawmut ATQR30 Fuse

Specialized Time-Delay Curve: Intentionally calibrated to handle extreme inductive starting currents from small transformers and magnetic coils without tripping falsely.
Maximum Current Limitation: Halts massive short-circuit currents rapidly to minimize peak let-thru energy, limiting thermal and mechanical stress on downstream components.
Rejection-Style Form Factor: Utilizes a physical rejection button on the ferrule terminal to ensure proper replacement code enforcement across commercial electrical boards.
High breaking Capacity: Rated to safely quench extreme electrical faults up to $200\text{ kA}$ AC and $100\text{ kA}$ DC, creating an exceptional safety margin.
High-Grade Materials: Constructed with a rugged fiberglass insulating body and filled with high-purity silica sand to ensure dimensional stability and rapid arc suppression.

Common Applications and Industrial Usage

The space-saving size and excellent inrush handling of the Ferraz Shawmut ATQR30 Fuse make it a preferred standard within modern automated panels:

Control Circuit Transformers: Serves as the ultimate branch safety shield to absorb the intense magnetic inrush common to industrial control circuit transformers (CCATs).
Solenoid Valves and Inductive Coils: Safely cushions high-current starting pulses required to mechanically actuate heavy pneumatic or hydraulic valves.
Industrial Control Panels (ICPs): Installed across DIN-rail mounted finger-safe fuse modules to secure programmable logic controllers (PLCs), contactor coils, and micro-drives.
HVAC Distribution Equipment: Integrated throughout commercial heating, ventilating, and cooling system sub-panels to rapidly isolate localized faults.
Lighting and Resistive Heating Arrays: Protects secondary commercial power pathways against prolonged overloads and branch line cross-talk.

Technical Specifications

The electrical, mechanical, and regulatory properties of the Ferraz Shawmut ATQR30 Fuse are tightly controlled to satisfy international industrial performance benchmarks:

Parameter Specification	Technical Details & Operational Ratings
Component Classification	Cylindrical Class CC Rejection Cartridge Fuse
Primary Target Keyword	Ferraz Shawmut ATQR30 Fuse
Manufacturer Catalog / Ref Number	ATQR30 / F200864
Technology Series	Amp-Trap 2000®
Continuous Amperage Rating	$30\text{ Amperes}$
Voltage Rating (AC)	$600\text{ VAC}$
Voltage Rating (DC)	$300\text{ VDC}$
Interrupting Rating (AC Max I.R.)	$200\text{ kA}$ Symmetrical
Interrupting Rating (DC Max I.R.)	$100\text{ kA}$
Physical Dimensions ( $D \times L$ )	$10.4\text{ mm} \times 38.1\text{ mm}$ ( $13/32" \times 1-1/2"$ )
Terminal Cap Material / Design	Tin-Plated Copper Ferrule with Rejection Button
Compliance Certifications	UL Listed (Standard 248-4), CSA Certified (C22.2 No. 248.4), RoHS

Installation and Safety Guidelines

Warning: High-voltage industrial environments present serious electrical shock hazards. Always turn off, isolate, and lock out the primary upstream power feed before visually inspecting or replacing any fuse link.

Verify Holder Clip Alignment: Always snap the Ferraz Shawmut ATQR30 Fuse into dedicated Class CC open-style blocks or enclosed finger-safe holders (e.g., Mersen UltraSafe USCC series). Standard midget fuse blocks will not accept the safety rejection tip.

Never Modify Safety Layouts: Do not shave down, alter, or force the rejection tip button into incompatible fuse holder models. Doing so violates local electrical codes and risks severe equipment damage.

Track Maintenance Profiles: When repairing multi-phase electrical paths, it is a recommended industry practice to replace fuses as a complete system matching set to maintain balanced phase resistance.

To review official electrical safety declarations, time-current clearing curves, and complete low-voltage 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.