Schneider Electric 140CFU40000 | Wickmann 4A Fuse Kit

High-Current Protection: Schneider Electric 140CFU40000 Fuse Kit

Heavy-duty circuits require robust protection components. The Schneider Electric 140CFU40000 delivers ten 4-amp fast-acting fuses for demanding applications. 

Technical Specifications

Basic Identification

• Manufacturer: Schneider Electric
• Part Number: 140CFU40000
• Fuse Type: Wickmann Fast-Acting
• Quantity: 10 Pieces per Set

Electrical Ratings

• Current Rating: 4 A (Four Amperes)
• Voltage Rating: Up to 250 V AC
• Breaking Capacity: 35 A at 250 V AC
• Response Characteristic: Fast-Acting Protection

Physical Characteristics

• Standard Size: 5 × 20 mm Industry Standard
• Body Material: Durable Ceramic Construction
• Contact Ends: Metal Caps for Secure Connection
• Packaging: Protective Container Included

Environmental Specifications

• Operating Temperature: -25°C to 70°C (-13°F to 158°F)
• Storage Temperature: -40°C to 85°C (-40°F to 185°F)
• Storage Conditions: Dry Environment Recommended
• Environmental Rating: Suitable for Industrial Use

Key Features

Protection Performance

• High-Current Protection: 4A rating suits motor controls and power circuits
• Fast Response: Quickly interrupts fault currents to prevent damage
• Robust Construction: Ceramic body handles thermal stress effectively
• Reliable Operation: Consistent performance across temperature range

Practical Advantages

• Maintenance Ready: Ten fuses cover multiple modules or repeated needs
• Easy Compatibility: Standard size fits Quantum module fuse holders
• Bulk Value: Cost-effective solution for maintenance inventory
• Downtime Prevention: Immediate availability reduces system outages

Typical Applications

• Quantum high-power output module protection
• Motor starter control circuit fusing
• Heating element control circuit protection
• Power supply output circuit safeguarding
• Industrial lighting control protection
• General-purpose high-current circuit protection

Installation & Safety Guidance

Replacement Procedure

• De-energize circuit completely before fuse replacement
• Use insulated tools for added safety
• Verify correct fuse rating for the specific application
• Ensure proper seating in fuse holder contacts
• Document replacement in maintenance log

Storage Best Practices

• Store in original packaging until needed
• Keep in dry, controlled environment
• Protect from physical damage and contamination
• Clearly label storage location for quick access

Technical Questions

Q: What applications need 4A fuses?

A: High-current circuits like motor controls, heaters, solenoids, and power outputs typically require 4A protection.

Q: How does this differ from 0.063A fuses?

A: 4A fuses protect high-current circuits, while 0.063A fuses protect sensitive low-current analog circuits.

Q: What modules use 4A fuses?

A: Quantum modules with high-power outputs, such as certain digital output and power supply modules.

Q: Why ceramic instead of glass?

A: Ceramic provides better durability and heat dissipation for high-current applications in industrial settings.

Q: How many fuses should I keep on hand?

A: This 10-piece set provides ample spares for most maintenance programs, allowing multiple replacements.

Shipping Information

• Shipping Methods: FedEx Express, UPS Worldwide, DHL International
• Package Size: Compact, easy-to-ship dimensions
• Processing Time: Typically ships within 24 hours
• International Delivery: Worldwide shipping available

Safety Notice: Always replace fuses with identical ratings and types. Using incorrect fuses can create fire hazards or fail to provide proper protection. Investigate the cause of fuse failures before restoring power to prevent repeated incidents.

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