Weidmüller ZSI Fuse Clamp - 2.5mm², Clamp Termination, 28V AC/DC
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Product Information
Full details
This Weidmüller ZSI fuse row clamp (model 1616440000) is designed for electrical engineers and technicians needing a reliable solution for protecting circuits with 5x20mm fuses and providing visual indication of blown fuses. Its key benefit is offering secure clamp termination and a clear 28V AC/DC supply voltage for defect indication. A potential caveat is its specific requirement for 28V AC/DC for the indication function, which may not suit all system voltages.
All features
| Model Part Number | ZSI 2.5/LD 28AC - 1616440000 |
|---|---|
| Brand | Weidmüller |
Extended Product Information
FAQs
What size fuse does this Weidmüller ZSI clamp use?
This clamp is designed for standard 5x20mm fuse cartridges.
How is the defect indication powered?
The defect indication feature is powered by a separate supply voltage of 28V AC/DC, which needs to be connected to the designated terminals.
What is the maximum wire size this clamp can accept?
The clamp supports wire gauges from 26 to 12 AWG. Note the product description specifies a maximum cable section of 2.5 mm², so ensure your wiring does not exceed this.
Can I use this clamp for high current applications?
This clamp has a nominal current rating of 6.3A, making it suitable for moderate loads. For higher current applications, a different fuse holder or terminal block rated for the required current should be used.
What are the dimensions of the fuse clamp?
The dimensions are approximately 7.9mm in width, 79.5mm in depth, and 73mm in height.
What certifications does this product have?
This product meets CE, CSA, and UR standards.
What is the operating temperature range?
It operates reliably within a wide temperature range of -50°C to +120°C.
How is this product mounted?
It is designed for easy and secure mounting onto a standard 35mm DIN rail.
Troubleshooting
Defect indicator not lighting up when fuse is blown
Verify that the 28V AC/DC supply voltage is correctly connected to the indication terminals and that the voltage source is active.
Fuse clamp not staying securely on DIN rail
Ensure the DIN rail is standard 35mm and properly installed. Check for any obstructions on the rail or the clamp's mounting mechanism. Ensure the clamp is fully snapped onto the rail.
Loose wire connection
Turn off power. Re-strip the wire if necessary and re-insert into the clamp termination, ensuring it is fully seated and the clamp screw is tightened securely. Check wire gauge compatibility.
Product feels unusually warm during operation
Ensure the fuse rating is correct for the circuit load and does not exceed the clamp's nominal current rating of 6.3A. Check for loose connections which can cause resistance and heat. If the issue persists, replace the clamp.
Pros and Cons
Pros
- Provides essential fuse protection for electrical circuits.
- Includes a defect indication feature for quick fault identification.
- Offers secure and versatile clamp termination.
- Easy installation on standard 35mm DIN rails.
- Wide operating temperature range ensures reliability in diverse environments.
- Supports a broad spectrum of wire gauges.
Cons
- Requires a specific 28V AC/DC supply for the defect indication feature.
- Nominal current rating of 6.3A may be insufficient for high-power applications.
- Sold in packs of 50, which might be more than needed for small projects.
Setup, Compatibility & Care
Setup:
- Ensure the power to the circuit is off before installation.
- Mount the ZSI fuse clamp securely onto a 35mm DIN rail by snapping it into place.
- Connect the incoming and outgoing wires using the clamp termination mechanism, ensuring proper stripping and tightening of the wire.
- Insert a 5x20mm fuse cartridge of the appropriate rating into the designated slot.
- For defect indication, connect the 28V AC/DC supply voltage to the respective terminals.
Compatibility:
- Compatible with 5x20mm fuse cartridges.
- Designed for 35mm standard DIN rails.
- Supports wire gauges from 26 to 12 AWG (0.13 mm² to 4 mm²). Note: The product states a maximum cable section of 2.5 mm², ensure your wiring complies.
- The defect indication feature requires a 28V AC/DC power source.
- Meets CE, CSA, and UR standards.
Care:
- Keep the fuse clamp clean and free from dust and debris. Use a dry cloth for cleaning.
- Periodically check wire connections for tightness.
- Ensure the fuse inserted matches the circuit's requirements and the clamp's rating (6.3A).
- Avoid exposing the product to corrosive chemicals or excessive moisture.