Bussmann 170M5712 – Fuse 630A 690V 2Fu/115 Ar Uc

Product Description for Bussmann 170M5712 Fuse

Overview
The Bussmann 170M5712 is a high-performance fuse designed for industrial and commercial electrical systems requiring robust overcurrent protection. Rated at 630A and 690V, this fuse delivers reliable circuit interruption under high-voltage conditions. With a breaking capacity of 115 kA at 690V (Uc), it ensures critical safety in demanding environments where fault currents are severe. The “2Fu” designation indicates compatibility with two-fuse assemblies, making it ideal for multi-unit installations.

Key Features

• High Current Rating: 630A capacity for heavy-duty applications.
• Voltage Resilience: 690V operational voltage (Uc) for medium-voltage systems.
• Ultra-High Breaking Capacity: 115 kA interruption rating at 690V, ensuring safety during extreme short circuits.
• Dual-Fuse Design (2Fu): Engineered for use in dual-fuse holders, optimizing space and redundancy.
• Industrial Compliance: Meets IEC 60269 standards for reliability and performance.
• Robust Construction: Precision-engineered for thermal stability, vibration resistance, and long service life.

Typical Applications

• Industrial motor control centers (MCCs)
• Power distribution panels and switchgear
• Renewable energy systems (e.g., solar/wind inverters)
• Heavy machinery, transformers, and UPS systems

Safety & Reliability
Crafted with Bussmann’s advanced quartz sand arc-quenching technology, this fuse minimizes arc energy during faults, protecting equipment and personnel. Its ceramic body ensures mechanical durability and resistance to thermal stress.

Ordering Information

• Model: 170M5712
• Rated Current: 630A
• Rated Voltage: 690V AC
• Breaking Capacity: 115 kA at 690V
• Mounting: Dual-fuse assembly (2Fu)

Why Choose Bussmann?
Trusted globally for over 100 years, Bussmann fuses combine cutting-edge engineering with uncompromising safety—ideal for mission-critical installations where downtime is not an option.

Note: Verify local electrical codes and compatibility before installation.