Ferraz Shawmut ATQR6 Time Delay Fuse

Ferraz Shawmut ATQR6 Time Delay Fuse Time Delay Fuse – Advanced Protection for Control Transformers

The Ferraz Shawmut ATQR6 Time Delay Fuse Time Delay Fuse (engineered by industry-leader Mersen under the celebrated Amp-Trap 2000® brand, part number T212698) is a high-performance, industrial-grade 6 A cartridge fuse. Belonging to the strictly certified UL Class CC family, this small-dimension fuse is uniquely optimized to protect control transformers, solenoids, and similar inductive loads. It introduces a specialized time-delay characteristic specifically calibrated to withstand the massive, brief magnetic inrush currents typical of transformer power-ups without causing nuisance trips.

As seen in the product image, the Ferraz Shawmut ATQR6 Time Delay Fuse Time Delay Fuse features a highly durable, non-conductive cylindrical body terminating in heavy-duty metallic ferrule caps. The bottom terminal cap incorporates a specialized physical rejection tip. This design ensures absolute compliance with National Electrical Code (NEC) guidelines by physically preventing the accidental installation of lower-rated or standard midget-class fuses into dedicated Class CC fuse blocks, maintaining your system’s engineered level of overcurrent protection.

Key Features of the Ferraz Shawmut ATQR6 Time Delay Fuse Time Delay Fuse

• Optimized Time-Delay Curve: Specifically formulated to absorb high-magnitude transient currents from control transformers and inductive coils, preventing premature or unnecessary blowing.

• Superior Current Limitation: Drastically reduces downstream component stress by quickly extinguishing high fault currents well before they reach their peak destructive potential.

• Physical Rejection End Cap: Outfitted with a standard button rejection tip that guarantees exact fitment in safety-compliant Class CC fuse holders while blocking unsafe field substitutions.

• High-Capacity Interrupting Rating: Safely manages and clears extreme electrical faults up to 200 kA AC, ensuring a massive buffer of safety for complex commercial and industrial electrical distribution boards.

• Fiberglass/Ceramic Insulating Body: Formulated from high-grade materials that provide outstanding dimensional stability and prevent internal tracking in high-vibration or humid factory environments.

Common Applications and Industrial Usage

Thanks to its space-saving form factor and excellent inductive-load tolerance, the Ferraz Shawmut ATQR6 Time Delay Fuse Time Delay Fuse is a trusted standard across automation control assemblies:

• Control Transformers: Safely handles the intense initial magnetic rush common to industrial control circuit transformers (CCATs).

• Solenoids and Contactor Coils: Protects inductive control circuit components that experience high-current peaks when moving mechanically.

• Industrial Control Panels (ICPs): Frequently installed in DIN-rail mounted modular fuse blocks to shield PLCs, input modules, and auxiliary power supplies.

• HVAC Control Circuits: Deployed across commercial heating, ventilation, and cooling electrical layouts to isolate individual control failures.

• Motor Control Centers (MCCs): Safeguards the control-side power lines running into heavy motor-starting equipment.

Technical Specifications

The operational and regulatory metrics of the Ferraz Shawmut ATQR6 Time Delay Fuse Time Delay Fuse are precisely defined to meet strict global benchmarks:

Installation and Safety Guidelines

Warning: Industrial control panels carry lethal high-voltage currents. Always completely de-energize and lock out the main power feed before conducting visual inspections, testing, or replacing a fuse link.

• Verify Holder Clamping: Install the fuse exclusively into dedicated Class CC fuse clips or modular finger-safe holders designed to accept the safety rejection tip.

• Never Bypass Safety Features: Do not grind down, shave, or modify the rejection tip button to force the fuse into a standard midget holder. Altering factory safety dimensions violates electrical codes and endangers equipment.

• Perform System Coordination: When executing routine field maintenance on multi-phase circuits, verify that adjacent fuses share matching current curves to maintain balanced phase parameters.

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.