Phoenix Contact Fuse Clamp - PT 4-HESILA 250 (5X20) - Black - 3211907
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Product Information
Full details
The Phoenix Contact 3211907 is a lever-type fuse terminal block designed for industrial electrical applications. It's ideal for control cabinet builders and maintenance professionals who need to safely integrate fuse protection for 5 x 20 mm G fuse inserts into a DIN rail system. Its key benefit is providing integrated fuse protection with a visual LED indicator for fault detection, while a potential caveat is the need for a separate closing plate for complete installation.
All features
| Model Part Number | 3211907 |
|---|---|
| Brand | Phoenix Contact |
Extended Product Information
FAQs
What type of fuse does this terminal block use?
This terminal block is designed for 5 x 20 mm G fuse inserts.
How do I connect wires to this terminal block?
It features a Push-In connection for tool-free wiring of solid conductors and those with ferrules (0.2-4 mm²). Other conductor types can be wired up to 6 mm² using the appropriate method.
What is the purpose of the LED indicator?
The LED serves as a visual indicator to signal when a fuse has blown, helping to quickly identify circuit faults.
What voltage is required for the LED to function?
The LED defect indicator operates on AC/DC voltages between 110V and 250V.
Can I use this terminal block in any control panel?
Yes, it is suitable for general industrial control panel applications and is specifically tested for railway applications, indicating a high standard of reliability.
Does this product come with a closing plate?
No, a closing plate is required for complete assembly but must be purchased separately.
What is the current rating of this fuse terminal block?
The rated current for this terminal block is 6.3 A.
Troubleshooting
Fuse blows repeatedly.
Check the connected circuit for a short circuit or overload. Inspect connected components for damage.
LED indicator does not light up when fuse is blown.
Verify the voltage supply to the terminal block is within the 110-250V AC/DC range. Ensure the fuse is correctly seated and the LED is not damaged.
Conductor connection is loose.
Ensure the conductor is stripped to the correct length and fully inserted into the Push-In connection. For non-ferrule ends, ensure the conductor is properly secured. Re-insert or check for damaged conductor.
Terminal block does not stay on DIN rail.
Ensure the DIN rail is correctly installed and is a standard 35mm profile. Check if the terminal block's mounting clip is damaged or obstructed.
Pros and Cons
Pros
- Provides integrated and easily accessible fuse protection.
- Visual LED indicator simplifies fault identification.
- Tool-free Push-In connection speeds up wiring.
- Compact form factor is ideal for space-constrained enclosures.
- Tested for railway applications, indicating high reliability.
Cons
- Requires a separate closing plate for complete assembly.
- LED indicator operates on AC/DC, potentially limiting use in pure DC circuits without proper consideration.
- Primarily designed for specific fuse sizes (5x20 mm), limiting flexibility.
- The 6.2mm pitch might be wider than some alternative fuse holders.
Setup, Compatibility & Care
Setup:
- Mount the terminal block onto a standard 35mm DIN rail. Ensure it clicks securely into place.
- If required, install the appropriate closing plate (sold separately) to complete the assembly.
- Insert the 5 x 20 mm G fuse into the swivelling fuse holder.
- Wire the conductors using the Push-In connection for solid or ferrule-ended conductors (0.2-4 mm²), or utilize the screw clamp for other conductor types (up to 6 mm² solid).
- Connect the circuit as per your wiring diagram.
Compatibility:
- Fuse Type: Designed exclusively for 5 x 20 mm G fuse inserts.
- Conductor Size: Supports various conductor types and sizes: fine-strand (0.2-4mm²), fine-strand with cable end sleeve (0.25-4mm²), solid-core (0.2-6mm²), and multi-wired (0.2-4mm²).
- Voltage: Suitable for circuits up to 250V AC/DC. The LED operates within 110-250V AC/DC.
- Mounting: Compatible with standard 35mm DIN rails.
Care:
- Keep the terminal block clean and free from dust and debris. Use a dry cloth for cleaning.
- Periodically inspect the fuse and fuse holder for signs of wear or damage.
- Ensure all conductor connections remain secure.