Mersen OT250 Fuse – Class K5 – 250A – 250VAC/250VDC – Fast-Acting Blade Fuse (Amp-Trap® OT Series)

The Mersen OT250 is a Class K5 fast-acting fuse designed for reliable overcurrent and short-circuit protection in low-voltage industrial and commercial power systems. Rated at 250 Amps, this Amp-Trap® fuse provides rapid interruption of fault currents to protect conductors and electrical equipment from damage. With voltage ratings of 250VAC and 250VDC, it is suitable for general-purpose distribution systems where fast fault clearing and dependable protection are required.

Voltage and Rating

• Current Rating: 250 Amps
• Voltage Rating: 250VAC / 250VDC
• Frequency: 50/60 Hz
• Fuse Class: Class K5
• Fuse Type: Fast-Acting (Fast-Blow)

Key Specifications

• Product Type: Industrial Fast-Acting Fuse
• Series: Amp-Trap® OT
• Part Number: OT250
• Manufacturer: Mersen
• Mounting Style: Blade
• Response Type: Fast-acting for immediate fault interruption
• Performance Class: Class K5 high interrupting capacity

Technical Specifications

• Protection Type: Overcurrent and short-circuit protection for industrial circuits
• Application Suitability: Distribution panels, feeders, motor circuits, and general industrial equipment
• Coordination Type: Designed for reliable coordination in low-voltage systems
• Construction Features: High interrupting rating, fast response time, and compact blade design
• System Integration: Suitable for AC and DC systems up to rated voltage limits

Standards and Approvals

• UL Listed
• CSA Certified
• Class K5 industrial fuse standard compliant
• IEC equivalent industrial protection standards (where applicable)

Product Data

• Manufacturer: Mersen
• Series: Amp-Trap® OT
• Part Number: OT250
• EAN/UPC: 782001700423

Applications

• Industrial power distribution systems
• Motor control panels
• Electrical feeders and branch circuits
• HVAC systems and compressors
• General-purpose machinery protection
• Commercial electrical installations
• Low-voltage industrial applications

Returns are easy

You may return items within 30 days of delivery for a refund.

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