Overview
The Siemens 3KL5030-1AB01 is a switch disconnector with fuse in the modern design architecture. Rated at Iu=63 A and Ue=690 V for 3-pole applications with LV HRC fuse (Size 00), this basic version excludes the 8UC6 handle and shaft to allow system integrators to specify custom control mechanisms. 3KL switch disconnectors with fuses protect against overload and short-circuits as main control and emergency-stop switches of switchboard assemblies, distribution boards, power supply and motor outgoing feeders.
Key Features
- Dual protection: Protects against short-circuit and overload in switchboard assemblies and distribution boards
- Versatile applications: Used with Siemens SITOR semiconductor fuses in UPS systems, frequency converters and capacitor control systems
- Modular design: Accessory can be used for other Siemens switch disconnectors such as the 3KA and 3KE models
- Standards compliant: Complies with IEC 60947-1, IEC 60947-3 and VDE 0660 Part 107
- Quick installation: Easy mounting design with metric screw connections
- Lockable mechanism: Close to prevent unauthorized operation
Technical Specifications
- Rated Current (Iu): 63 A
- Rated Voltage (Ue): 690 V AC
- Poles: 3-pole
- Fuse Type: Low-voltage HRC (Size 00)
- Configuration: Basic version without handle and shaft
- Enclosure: Molded-plastic
- Connection Type: Metric screw terminals
- Weight: 1.014 kg
- Certifications: IEC 60947-1, IEC 60947-3, VDE 0660 Part 107
- Condition: Used, fully functional and tested
Typical Applications
Main control and emergency-stop switches for switchboard assemblies, distribution boards, and power supply feeders. Also deployed in motor outgoing feeders and, when paired with SITOR fuses, in high-reliability systems such as uninterruptible power supplies, variable frequency drives, and reactive power control networks. Suitable for both primary distribution and load-side circuit isolation in industrial plants, manufacturing facilities, and critical infrastructure.
Compatibility & Replacements
Compatible With
- Siemens SITOR semiconductor fuses (for advanced applications)
- Standard low-voltage HRC fuses (Size 00)
- Siemens SENTRON switchgear systems
- Industrial automation and control switchboards
- Low-voltage distribution networks up to 690 V AC
Replaces / Drop-In Replacement For
- Other 3KL5030 series models with identical electrical ratings (63A, 690V, 3-pole)
- Verify compatibility with your OEM documentation or system integrator before ordering, as handle/shaft options vary across 3KL5030 variants
Works With
- Siemens 3KA and 3KE switch disconnectors (compatible accessory ecosystem)
- Molded-case circuit breakers in combination switchgear designs
- Motor control centers (MCCs) and distribution boards
- UPS and frequency converter protection systems
- Capacitor and harmonic filtering circuits
