• 1PCS NEW FOR Ferraz Shawmut SC33AR69V13CTF A1046960 1250A 690V Fuse - KOEED
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KOEED

1PCS NEW FOR Ferraz Shawmut SC33AR69V13CTF A1046960 1250A 690V Fuse

1PCS NEW FOR Ferraz Shawmut SC33AR69V13CTF A1046960 1250A 690V Fuse

$711.64 USD
$711.64 USD $711.64 USD
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MPN SC33AR69V13CTF A1046960
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Engineer's Quick Brief

  • Ultra-Fast Semiconductor Protection: Designed specifically as a square body PSC high-speed fuse to safeguard heavy-duty rectifiers, VFDs, and power converters against catastrophic short-circuit clearing events.
  • Extreme Interrupting Rating: Engineered for direct high-capacity industrial grid deployment, safely managing severe sub-millisecond faults under 690V AC operational limits.
  • Minimized Power Dissipation: Built with pure silver fuse elements and superior structural thermal cooling metrics to guarantee reduced voltage drop and lower ambient heat generation inside tight electrical enclosures.

The Ferraz Shawmut SC33AR69V13CTF (global catalog tracking reference A1046960) is a high-performance, industrial-grade high-speed square body fuse built for the definitive defense of solid-state electronics. Rated at a robust current capacity of 1250A and a maximum working potential of 690V, this specialized semiconductor protection fuse limits let-through energy values ($I^2t$) to protect sensitive components like thyristors, IGBTs, and SCR arrays. Now manufactured under the premium Mersen umbrella, the SC33AR69V13CTF features reliable blade type or bolt-down terminal configurations, providing clean integration into low-latency electrical distribution networks.

Technical Specifications

Engineering Parameter Technical Classification Operational Value
Brand Manufacturer OEM Brand Heritage Ferraz Shawmut (Mersen)
Model Number Factory Catalog Part Identifier SC33AR69V13CTF
Smart Product Code Unique Material ID Reference A1046960
Body Size Configuration Physical Frame Scale Standard Size 33 Architecture
Rated Current ($I_n$) Continuous Thermal Amperage Capacity 1250A
Rated Voltage ($U_n$) Maximum Dielectric Arc Limit 690V AC
Fuse Class Utilization Operational Tripping Slopes Category aR (Partial Range High-Speed Semiconductor Protection)
Terminal Style Electrical Interface Integration Type Flush-end blade tracking / End-mounting configuration style
Interrupting Rating (Breaking Capacity) Maximum Safely Cleared Fault Current 200 kA at 690V AC (Standard Operational Boundary)
Body Material Matrix Structural Enclosure Substrate High-strength ceramic body filled with high-purity quartz sand

Application Matrix

Target Industrial System Deployment Purpose Engineering Value Delivered
High-Power Variable Frequency Drives (VFD) DC bus short-circuit isolation Fast sub-millisecond reaction prevents costly downstream inverter IGBT bridge damage during overcurrent spikes.
Industrial DC Rectifiers Solid-state power device protection Ensures isolation of localized component failure modes before faults can propagate into multi-phase industrial transformers.
UPS Systems & Soft Starters Critical grid interface shielding Maintains precise low thermal let-through energy thresholds ($I^2t$) to shield delicate silicone control paths.

Koeed B2B Tool: High-Speed Fuse Thermal Derating Calibrator

High-speed aR semiconductor fuses operate in demanding closed enclosures. Use this technical configuration utility to calculate the corrected operational continuous current limit based on environmental factors like ambient temperature and cooling air speed velocity inside your power panel.

Maximum Continuous Safe Operating Current ($I_{ob}$):
1187.5 A
Calculated using standardized thermal equations under standard IEC enclosures.

Troubleshooting & FAQ

Q1: Can an aR class high-speed fuse like the SC33AR69V13CTF be used for standard motor branch circuit overload shielding?

No. Fuses marked with an **aR** classification provide partial-range protection optimized solely for short-circuit faults inside high-speed semiconductor environments. They cannot manage sustained low-level thermal overloads. For standard line-level installations, integrate an autonomous thermal overload relay or combine with a gG/gM class distribution fuse network.

Q2: Why must high-speed semiconductor fuses be torque-checked during panel maintenance?

Because semiconductor protection involves extremely high running currents up to 1250A. Any microscopic air gap or loose mounting bolt on the Size 33 flush-end terminals introduces parasitic contact resistance. This localized resistance acts as a heater, inducing premature element aging, nuisance trippings, and accelerated thermal fatigue.

Q3: What causes a high-speed square body fuse to disfigure or show signs of external blackening?

This point points toward heavy arc energy dissipation inside the chamber during high-power short circuit extraction. The specialized high-purity quartz sand filling vaporizes to absorb the thermal energy and safely extinguish the electrical arc plasma. If external ceramic cracking or burning is visible, inspect all adjacent power semiconductor components for failure modes before mounting a replacement unit.

Cross-Reference Guide

When executing maintenance cross-referencing or designing upgrade specifications, the following models feature corresponding form factors and electrical compatibility parameters:

  • Mersen / Ferraz Shawmut Legacy Reference: Replaces catalog part numbers matching the format PC33UD69V1250TF or specific variants within the A1046960 high-speed engineering ledger.
  • Industry Competitor Alternates: Direct functional physical alignment with Size 3 high-speed square body flush-end fuses from Bussmann (such as 170M6416 or equivalent 1250A 690V AC series ratings). Always cross-check the let-through $I^2t$ parameters prior to hot-swapping operational industrial panels.

About Koeed Automation

Expert Supply Solutions for Global Industrial Electronics

At Koeed.com, we are professional architects of the industrial electronics supply chain. We specialize in providing high-performance PLCs, HMIs, Servo Motors, Drives, and Converters to ensure that modern manufacturing operations remain efficient, reliable, and future-proof in 2026’s competitive landscape.

🛡️ Certified Quality

We source only 100% authentic industrial hardware from global category leaders. Every component undergoes a rigorous verification process to meet Industry 4.0 reliability standards.

⚙️ Engineering Domain

Our experts provide more than just parts; we offer technical insight. We assist in complex product selection and compatibility audits for both legacy system upgrades and new installations.

🌐 Rapid Global Logistics

Time is money in industrial automation. Our optimized supply network ensures that critical components reach your facility quickly, significantly reducing unplanned downtime and operational loss.

Strategic Global Portfolio: Siemens, Omron, FANUC, Schneider Electric, Mitsubishi, Yaskawa, Allen-Bradley, and other elite industrial brands.

Supporting your vision for a smarter, more efficient industrial future.

Special Reminder

Important

If you have any questions about product information and prices, please feel free to contact us by email or WhatsApp. We will respond quickly.

  • Business Days Only (Monday through Saturday)
  • It takes up to 10 days from the time of ordering (excluding Saturdays and Sundays) to the time of delivery to your designated location. Worldwide delivery.
  • Within 3 days after placing the order, we will send you photos and videos of the product via email or WhatsApp for confirmation

International shipping - items may be subject to customs processing depending on the item's customs value.
Sellers declare the item's customs value and must comply with customs declaration laws.
As the buyer, you should be aware of possible:

  • Delays from customs inspection.
  • Import duties and taxes which buyers must pay.
  • Brokerage fees payable at the point of delivery.

Shipping Policy

Global Delivery

We ship to customers all over the world. Our primary logistics providers are DHL, UPS, TNT, FedEx, and EMS.

Processing Time

All orders are processed within 72 hours of purchase. Please note that this applies to business days only.

Shipping Rates & Delivery Estimates

Shipping charges for your order will be calculated and displayed at checkout. Delivery estimates are within 7-14 days. Please note that these shipping times are only estimates and unfortunately, cannot be guaranteed.

Shipment Confirmation & Order Tracking

You will receive a Shipment Confirmation email once your order has shipped containing your tracking number(s). The tracking number will be active within 24 hours.

Customs, Duties, and Taxes

Please note, international shipping services do vary from country to country. To find out the exact services that are available, please put in your full address at checkout. Shipping internationally does mean that you may be required to pay customs and import taxes. All international customers are responsible for the customs rates within their own country. For further information, we recommend contacting your local customs office.

Damages

We take every reasonable precaution to ensure that products are not damaged. If the item is damaged in transit, please immediately contact us. We are not liable for any products damaged or lost during shipping. If you received your order damaged, please contact the shipment carrier to file a claim. Please save all packaging materials and damaged goods before filing a claim.

Force Majeure

When encountering with force majeure, the processing of orders will be delayed. Nevertheless, it is ensured that your order will be processed in a fast manner when weather permits.

Address Verification

Please verify you have the correct shipping address on your order PRIOR to making payment as this is the address we will ship to.

Return Policy

For more information, visit our Return Policy page.

International shipping - items may be subject to customs processing depending on the item's customs value.

Sellers declare the item's customs value and must comply with customs declaration laws.
As the buyer, you should be aware of possible:
• Delays from customs inspection.
• Import duties and taxes which buyers must pay.
• Brokerage fees payable at the point of delivery.

Contact Us

If you have any questions about your order, please contact us at moritta@koeed.com.

Return Policy

Return and Refund Policy

We want you to be completely satisfied with your purchase on our store. If for any reason you are not entirely satisfied, we're here to help!

Returns

You have a generous 30 calendar days to return an item from the date you received it. To be eligible for a return, ensure the item is in its original, unworn, and unused condition with tags and packaging intact. Retain your receipt or proof of purchase for eligibility. Please note that certain items are non-returnable like perishables, custom products, personal care goods, hazardous materials, flammable liquids, and gases. Reach out for clarifications on specific items.

Return Process

Commence the return process by reaching out to us at moritta@koeed.com. Upon approval, we will furnish you with a return shipping label and detailed instructions for dispatching your package. Unnotified returns will not be accepted.

Damages and Issues

Kindly review your order upon delivery. Notify us promptly if it arrives defective, damaged, or incorrect. We will address the matter swiftly.

Exchanges

Facilitate a swift exchange by returning the original item once approved and making a new purchase.

EU 14-Day Cooling Off Period

EU-bound shipments allow a 14-day cancellation or return period without justification. Conditions mirror standard returns.

Refunds

Upon receiving and inspecting your return, we’ll inform you of the refund status. Approved refunds are automatically processed within 10 business days via the initial payment method. Allow time for financial institutions to finalize the refund. For delays exceeding 15 business days post-approval, contact us at moritta@koeed.com.

Shipping

You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from your refund.

Contact Us

If you have any questions on how to return your item to us, feel free to contact us at moritta@koeed.com.

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