Mersen ATQ-14 Midget Time-Delay Fuse, 500VAC Ferrule

Mersen ATQ-14 Midget Time-Delay Fuse, 500VAC Ferrule

The Mersen ATQ-14 Midget Time-Delay Fuse (Amp-Trap®) is rated 500VAC with ferrule terminals, offered on this page across selectable Motor FLA ratings from 0.25A to 6.25A (0.25A, 0.8A, 1.125A, 1.4A, 1.6A, 2.25A, 2.5A, 6.25A) so electricians can match a compact, reliable fuse to the exact motor full-load amperage on the circuit. Each fuse in this family carries a 10 kA AC max interrupt rating and is designed for use where the available short circuit current does not exceed 10,000A. This series is intended for supplemental protection only and is not for Branch Circuit Protection.

Key Features

• Motor FLA Ratings: Select from 0.25A, 0.8A, 1.125A, 1.4A, 1.6A, 2.25A, 2.5A, or 6.25A to match the specific motor full-load amperage of the protected circuit.
• Ferrule Terminals: Tin-plated copper ferrule connections for dependable, low-resistance clip-mount installation across the entire ATQ-14 family.
• Time-Delay Characteristic: Time-delay speed rating helps ride through momentary motor inrush without nuisance opening, shared by every rating in this family.
• Voltage Rating: Rated 500V AC per UL for use in AC circuits, regardless of the Motor FLA rating selected.
• Interrupt Rating: 10 kA AC max I.R./breaking capacity (I1) for supplemental protection where available fault current is at or below 10,000A.
• Frequency: Rated for 50/60 Hz systems.
• Body/Insulating Material: GMG body construction for durable insulation and mechanical strength.
• Fuse Class: Midget class fuse, clip-mounted, common to all Motor FLA options in this family.

Certifications & Compliance

• RoHS Compliant

Technical Specifications

• ROHS Compliant: Yes
• AC or DC: AC
• Body/Insulating Material: GMG
• Connection/Terminal Type: Ferrule
• Mounting: Clip
• Connection/Terminal Material: Tin-Plated Copper
• AC Max I.R./Breaking Capacity: I1: 10 kA
• Frequency (Hz): 50/60 Hz
• Speed/Characteristic: Time Delay
• Rated voltage AC UL: 500 V
• Fuse Class: Midget
• Motor FLA Options: 0.25A, 0.8A, 1.125A, 1.4A, 1.6A, 2.25A, 2.5A, 6.25A

Typical Applications

• Motor Circuit Supplemental Protection Sized to Motor FLA
• Commercial and Industrial Electrical Panels
• Equipment Protection Where Available Fault Current Does Not Exceed 10,000A
• Motor Control Centers and Machine Tool Circuits
• Lighting and Appliance Circuit Supplemental Protection

Why Mersen?

Mersen's Amp-Trap® ATQ-14 Midget fuses combine a rugged GMG body, tin-plated copper ferrule terminals, and a 10 kA interrupt rating to deliver dependable, RoHS-compliant supplemental protection across a full range of Motor FLA ratings for professional electrical work. The shared time-delay characteristic and 500VAC UL rating make this family a trusted choice when specifying compact, code-aware overcurrent protection sized precisely to motor full-load amperage.