Switch disconnector fuse in SS Enclosure - 3KL8421-5UA00

Product Description

 Siemens Switch Disconnector Fuse in SS Enclosure – 3KL8421-5UA00

The Siemens 3KL8421-5UA00 is a SENTRON 3KL8 Switch Disconnector Fuse (SDF) designed for safe switching, isolation, and short-circuit protection in low-voltage power distribution systems. This model comes in a stainless steel (SS) enclosure execution, making it highly suitable for industrial, outdoor, and harsh environmental applications where corrosion resistance and long service life are required.

It is widely used in LT panels, MCC panels, feeder pillars, and heavy-duty distribution systems, where HRC fuse protection and safe manual isolation are essential for system reliability and operator safety.

Key Features:

• Siemens SENTRON 3KL8 series Switch Disconnector Fuse 

• Part Number: 3KL8421-5UA00 

• Stainless Steel (SS) enclosure execution 

• 3 Pole + Neutral (3P+N) configuration 

• Rated current: 630A 

• Suitable for DIN-type HRC fuse links 

• High short-circuit withstand capability 

• Safe load switching and reliable isolation function 

• Manual rotary operating mechanism 

• Clear ON/OFF position indication 

• Padlockable handle for LOTO safety 

• Robust SS enclosure for harsh industrial environments 

• Designed for LT / MCC / PCC panel applications 

• Complies with IEC 60947-3 standards