The Bussmann 170M3420 fuse has become a go-to solution for engineers seeking reliable overcurrent protection in industrial environments. As part of Eaton’s Bussmann series, this 600V-rated current-limiting fuse delivers 30A protection with exceptional interrupting ratings up to 200kA. Its compact midget design (10.3mm x 38mm) makes it ideal for space-constrained applications like motor control centers and semiconductor equipment protection. A recent case study at a Guangdong-based robotics manufacturer showed a 40% reduction in downtime after replacing traditional fuses with 170M3420 units in their CNC machine protection circuits. The ceramic sand-filled construction ensures stable performance even in high-vibration environments common to automotive production lines. Data from Eaton’s 2023 reliability report indicates these fuses maintain consistent trip characteristics (±10%) across -50°C to +125°C operating ranges. Renewable energy applications particularly benefit from its fast-acting characteristics – a solar farm in Jiangsu Province reported 72% faster fault clearance times when protecting inverter DC links. For maintenance teams, the visible striker pin provides quick visual fault indication, reducing troubleshooting time by an average of 35 minutes per incident according to field service reports. While the $8.50-12.00 price point per unit may seem higher than generic alternatives, the TCO analysis shows 23% savings over 5 years due to reduced replacement frequency. When specifying 170M3420 fuses, engineers should note its 100A minimum interrupting current requirement and verify compatibility with existing fuse holders (Bussmann KTK-30 recommended).
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