ZK4-M6/M8
ZK4-M6/M8
The ZK4-M6/M8 is a fused voltage branch designed for rail mounting in distribution systems. It allows for a safe and simple connection by directly fusing the voltage carrying rail, thereby protecting both the measurement wiring and the connected object.
Key Features
- Fused voltage branch for measurement purposes.
- Easy installation under existing attachment points on voltage rail using M6 or M8 bolts.
- Compact casing for space efficiency.
- High short-circuit resistance suitable for various installation cabinets.
- Delivered with a 5x25mm, 2A, 450V, F, 70kA fuse.
Technical Specifications
- Environmental Conditions: Designed for indoor use with operating temperatures from -10°C to +55°C, relative humidity of 5% to 85% (non-condensing), and IP20 protection degree.
- Application Conditions: Complies with IEC 60947-7-3:2009 standard, with a maximum voltage (Umax) of 400Vac, test voltage of 3kV/50Hz, impulse voltage of 6kV 1.2/50µs, and a maximum current (Imax) of 2A.
- Voltage Drop: Less than 500mVac.
- Fuse Specifications: 2A, 450V, F, 70kA, 5x25mm ceramic fuse (SIBA Part.no. 7008913.2).
- Connections: Primary connection via M6 (6mm) or M8 (8mm) bolts; secondary connection supports 1.5 to 4mm² tongue with a maximum torque of 2.0Nm.
Order Specifications
- ZK4-M6: Article number 500030
- ZK4-M8: Article number 500031
Dimensions and Wiring Diagram
Details on dimensions and wiring diagrams are provided for installation guidance.
Catalog excerpts
ZK4-M6/M8 - Fused voltage branch on for rail mounting With the ZK4-M6 and ZK4-M8 it is possible to make a safe and simple fused voltage branch in your distribution system. The main advantage of the ZK4-M6/M8 is that the branch is directly fused on the voltage carrying rail. In this way both the measurement wiring and the object to connect are protected via the special fuse. Fitting the ZK4-M6/M8 under an existing attachment point (M6 or M8 bolt) on the voltage rail is easy to carry out due to the ”hook” construction. The compact construction of the ZK4-M6/M8 also provides major benefits. The ZK4 has a high short-circuit resistance that makes it extremely suitable in all types of installation cabinets with a voltage rail. Technical specifications Environmental conditions This product is designed to be save under the following conditions: Location: Operating temp.: Relative humidity: Protection degree: Suitable for copper bar conductors Properties • Fused voltage branch for measurement purposes • Easy fitting under existing attachment points on voltage rail • For fitting under M6 and M8 bolts • Compact casing • Delivered with a 5x25mm, 2A, 450V, F, 70kA fuse Application conditions Standard: Umax: Test voltage: Impulse voltage: Imax: Voltage drop: Fuse: Prim. connection: Sec. connection: Indoor use -10°C - +55°C 5% - 85%, non condensing IP20, basic insulation Order specifications Type ZK4-M6 ZK4-M8 Wiring diagram
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