The Siemens 3KL8221-3TJ00 is a high-performance SENTRON 3KL8 Switch Disconnector Fuse (SDF) designed for reliable switching, isolation, and protection of low-voltage power distribution systems. This 125A TPN (3 Pole + Neutral) switch disconnector fuse is suitable for BS Type HRC Fuse Links and provides dependable overload and short-circuit protection in industrial and commercial electrical installations. Its rugged open-execution design ensures safe operation, easy maintenance, and long service life in LT panels, motor control centers, and distribution boards. Engineered according to IEC/IS standards, it delivers high operational safety and efficient power control in demanding applications.
• Siemens SENTRON 3KL8 Series Switch Disconnector Fuse
• Part Number: 3KL8221-3TJ00
• TPN (3 Pole + Neutral) configuration
• Rated Current: 125A
• Suitable for BS Type HRC Fuse Links
• Open Execution design for industrial applications
• Reliable load switching and circuit isolation
• Provides overload and short-circuit protection
• Fixed drive operating mechanism
• High mechanical and electrical endurance
• Compact and robust construction
• Suitable for power distribution and motor protection systems
• Easy panel mounting and maintenance
• Designed as per IEC / IS 60947 standards
• Ideal for LT panels, MCC panels, and distribution boards
• Ensures operational safety and dependable performance
| Parameter | Specification |
|---|---|
| Product Series | Siemens SENTRON 3KL8 |
| Part Number | 3KL8221-3TJ00 |
| Product Type | Switch Disconnector Fuse (SDF) |
| Number of Poles | TPN (3 Pole + Neutral) |
| Rated Current | 125A |
| Rated Operational Voltage | 690V AC |
| Frequency | 50 Hz |
| Fuse Type | BS Type HRC Fuse |
| Execution Type | Open Execution |
| Operating Mechanism | Fixed Drive |
| Mounting Type | Panel Mounting |
| Switching Function | Load Switching & Isolation |
| Protection Function | Overload & Short Circuit Protection |
| Terminal Type | Screw Terminal Connection |
| Standard Compliance | IEC / IS 60947 |
| Degree of Protection | IP00 (Open Execution) |
| Material | Industrial Grade Thermoplastic & Metal Components |
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