ECSR25 - 25Amp Fuse

ECSR25 - 25Amp Fuse

Designed for heavy‑duty electrical environments, the ECSR25 delivers dependable circuit protection in demanding commercial and industrial systems. With a 25‑amp current rating and 600 V AC capacity, this Class RK5 fuse offers a dual‑element design that handles both sustained overloads and sudden short circuits. Its time‑delay feature—tested to tolerate up to 500% of rated current for 10 seconds—makes it ideal for equipment prone to high inrush currents, such as motors and transformers. Capable of clearing fault currents up to 200,000 amps, the ECSR25 is built to respond reliably under severe fault conditions.

Key Features and Benefits

• Time‑Delay Dual‑Element Design: Combines slow‑blow overload protection with fast short‑circuit response, helping you avoid unnecessary disruptions and reducing downtime.
• Silver‑Plated Fuse Caps: Provide excellent conductivity while minimizing heat buildup; their corrosion‑resistant finish ensures a long service life even in demanding environments.
• Ferrule End Configuration: Fits standard fuse holders and makes replacements quick and safe, ideal for maintenance‑heavy facilities.
• High Interrupt Capacity: With the ability to safely interrupt up to 200 kAIC, it offers strong protection even under extreme fault conditions.
• High Inrush Tolerance: The time‑delay feature allows temporary surges during motor or transformer startup without tripping, ensuring stable operation.

Technical Specifications

• Catalog Number: ECSR25
• Voltage Rating: 600 V AC
• Current Rating: 25 Amps
• Interrupt Capacity: 200,000 Amps (200 kAIC)
• Response Time: 10 seconds at 500% overload
• Dimensions: 11.63 in length × 2.34 in diameter
• Weight: Approx. 2.35 lb
• End Type: Ferrule × Ferrule
• Fuse Indicator: Non‑indicating

Material Compliance and Certifications

• Certifications: UL Listed, CSA Certified, CE Marked
• Standards: Complies with UL 248‑12 and CSA C22.2 specifications
• Environmental: RoHS‑compliant, ensuring materials meet modern environmental and safety requirements

Where It Works Best

• The ECSR25 excels in applications that demand reliable protection with minimal maintenance — including HVAC systems, motor starters, industrial machinery, and power distribution panels. Its ability to handle high inrush currents makes it especially suitable for systems with frequent motor or transformer startups. If you’re managing installations in factories, commercial buildings, or industrial plants where longevity and consistent performance are critical, the ECSR25 is an excellent fit.