FERRAZ SHAWMUT TIME DELAY FUSE ATDR15

FERRAZ SHAWMUT TIME DELAY FUSE ATDR15 – Amp-Trap 2000® Class CC Small-Dimension Power Fuse

The FERRAZ SHAWMUT TIME DELAY FUSE ATDR15 (manufactured under Mersen / Ferraz Shawmut, part number ATDR15 / V211135) is an industrial-grade Class CC time-delay power cartridge fuse. Specifically engineered to deliver “Type 2 No-Damage” protection for branch circuits and small motor loads, the FERRAZ SHAWMUT TIME DELAY FUSE ATDR15 absorbs startup inrush currents while protecting sensitive automation controls from severe fault currents.

As shown in the product image, the fuse features a high-grade glass melamine/fiberglass casing fitted with tin-plated copper ferrule end caps and an iconic Class CC rejection tip. With a $15text{ A}$ continuous rating at $600text{ VAC}$ / $300text{ VDC}$ , it delivers current-limiting protection within standard $10 times 38text{ mm}$ ( $13/32text{"} times 1text{-}1/2text{"}$ ) panel footprints.

Key Features of the FERRAZ SHAWMUT TIME DELAY FUSE ATDR15

Best-in-Class Motor Cycling Time-Delay: Engineered with time-delay characteristics optimized for motor starting currents, preventing nuisance openings during frequent motor start/stop cycles.
High-Level Current Limitation: Operates fast under short-circuit conditions to limit peak let-through current and cut fault energy, reducing downstream equipment damage.
Rejection-Style Class CC Feature: Incorporates a rejection tip on the end cap that prevents insertion of non-current-limiting or lower-rated midget fuses into Class CC fuse blocks.
Massive Interrupting Rating (200kA AIR): Rated for a $200,000text{ A RMS}$ symmetrical interrupting rating at $600text{ VAC}$ and $100,000text{ A}$ at $300text{ VDC}$ .
Harsh-Environment Construction: Built with a dimensionally stable fiberglass/melamine body filled with high-grade silica for rapid arc quenching.
Safety & Regulatory Compliance: Fully certified to UL 248-4 (Class CC), CSA C22.2 No. 248.4, CE, and RoHS standards.

Common Applications and Industrial Usage

The current-limiting and time-delay characteristics of the FERRAZ SHAWMUT TIME DELAY FUSE ATDR15 make it suitable across industrial control panels:

Small Motor Branch Circuit Protection: Provides branch protection for small single-phase and three-phase motors prone to heavy startup current inrush.
Contactors & Motor Starters: Protects motor starters, magnetic contactors, and solid-state relays from fault currents.
Control Transformers & Power Supplies: Absorbs initial magnetizing currents when energizing control transformers and DC power supplies.
HVAC, Heating & General Lighting Loads: Shields rooftop HVAC fans, electric heating elements, and industrial lighting branch circuits.

Technical Specifications

The electrical limits, physical parameters, and cross-references for the FERRAZ SHAWMUT TIME DELAY FUSE ATDR15 comply with UL Class CC standards:

Parameter Specification	Technical Details & Operational Values
Component Classification	Amp-Trap 2000® Class CC Time-Delay Power Fuse
Primary Target Keyword	FERRAZ SHAWMUT TIME DELAY FUSE ATDR15
Manufacturer / Catalog No.	Mersen (Ferraz Shawmut) `ATDR15` / `V211135`
Amperage Rating	$15text{ A}$
Voltage Ratings	$600text{ VAC} / 300text{ VDC}$
Interrupting Rating (AIR)	$200text{ kA RMS}$ @ $600text{ VAC}$ / $100text{ kA}$ @ $300text{ VDC}$
Time-Delay Speed	Time Delay / Slow-Blow (Motor Starting Characteristic)
Body Material / Terminal Caps	Glass Melamine / Fiberglass Body with Tin-Plated Copper Ferrules
Physical Dimensions	Diameter: $10.4text{ mm}$ ( $0.41text{"}$ ) $times$ Length: $38.1text{ mm}$ ( $1text{-}1/2text{"}$ )
Terminal Mount Style	Ferrule with Class CC Rejection Feature
Direct Cross-References	Bussmann `LP-CC-15`, Littelfuse `CCMR015`

Installation Guidelines and Best Practices

Safety Precaution: Always de-energize and lock out primary AC power sources prior to opening fuse holders or replacing cartridge fuses.

Holder Compatibility: Install only in UL-rated Class CC rejection fuse holders, such as Mersen UltraSafe™ USCC series DIN-rail holders or 303 series fuse blocks.

Sizing Guidelines: For small motor branch circuits, size ATDR fuses according to NEC motor tables (typically up to $175%text{--}225%$ of full-load motor amps).

Proper Inspection: Verify that the rejection tip sits fully into the rejection slot of the terminal block to maintain a proper electrical contact connection.

To review official class CC time-delay fuse curves, rejection dimensions, and complete Amp-Trap catalog specifications, consult the global Mersen Electrical Circuit Protection Directory.

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

FERRAZ SHAWMUT TIME DELAY FUSE ATDR15