Phoenix Contact Terminal Block - URTK/S-BEN 10 - Grey
Not Available
Not Available
Not Available
Currently unavailable
Currently out of stock
This product is not available at the moment. Check back later or explore other options below.
Product Information
Full details
This Phoenix Contact 309109 test disconnect terminal block is designed for electrical professionals needing to perform safe and efficient testing in current transformer secondary circuits. Its key benefit is the ability to easily isolate circuits for testing without disruption, utilizing its sliding disconnect feature. A potential caveat is the requirement for a separate closing plate, which is not included with the block itself.
All features
| Model Part Number | 309109 |
|---|---|
| Brand | Phoenix Contact |
Extended Product Information
FAQs
What is the primary purpose of this test disconnect terminal block?
Its primary purpose is to allow for safe and convenient testing of current transformer secondary circuits by providing an easy way to disconnect the circuit without altering the main wiring.
What wire sizes can be connected to this terminal block?
The terminal block supports wire cross-sections ranging from 0.5 mm² to 16 mm² (AWG 20-8).
What type of mounting rails is this block compatible with?
It is compatible with standard NS 35/7.5, NS 35/15, and NS 32 mounting rails.
Does this product include the closing plate?
No, the closing plate is not included with the terminal block and must be purchased separately.
What are the voltage and current ratings?
The terminal block has a nominal voltage rating of 500V and a current rating of 57A.
Can I use the test sockets to bridge connections between blocks?
Yes, the test sockets on both sides of the disconnect point can be used to switch across to neighboring terminal blocks.
What is the operating temperature range?
The terminal block can operate within a wide temperature range of -60°C to +110°C.
What certifications does this product hold?
The terminal block is UL Listed, CSA certified, and EAC certified.
Troubleshooting
Terminal block does not mount securely to the rail.
Ensure you are using a compatible NS series mounting rail (NS 35/7.5, NS 35/15, or NS 32) and that the rail itself is properly installed and not damaged. Check for any debris on the rail or the block's mounting interface.
Screw terminals are loose or cannot be tightened.
Verify that the wire gauge is within the supported range (0.5mm² to 16mm²). Ensure the wire end is stripped correctly and inserted fully into the terminal before tightening the screw. If the screw head is damaged, it may need replacement.
Sliding disconnect mechanism is stiff or stuck.
Gently try to move the slide. Inspect the mechanism for any foreign objects, debris, or damage. Clean the area around the slide and lubricate lightly with a non-conductive, electronic-grade lubricant if necessary, following manufacturer recommendations.
Overheating during operation.
Check that the wire connections are tight and that the wire gauge is appropriate for the current being carried. Ensure the terminal block is not exceeding its rated current of 57A. Verify that all connected components are functioning correctly and not drawing excessive current.
Pros and Cons
Pros
- Facilitates safe and straightforward testing of current transformer secondary circuits.
- Supports a wide range of wire sizes, offering flexibility in applications.
- Durable construction with high-temperature resistance (-60°C to +110°C).
- Compatible with common NS series mounting rails.
- Certified by UL, CSA, and EAC for assured quality and safety.
Cons
- Requires a separate closing plate for complete installation.
- Sold in packs of 50, which may be excessive for small projects.
- Screw connection terminals may require specific tools for tightening.
Setup, Compatibility & Care
Setup:
- Ensure the appropriate NS 35/7.5, NS 35/15, or NS 32 mounting rail is installed.
- Slide the terminal block onto the mounting rail until it locks securely in place.
- Connect wires to the screw terminals on both sides, ensuring correct polarity and wire gauge.
- Install a closing plate (sold separately) to complete the assembly and ensure proper spacing and insulation.
- Use the sliding disconnect feature by moving the lever to open or close the circuit.
Compatibility:
- Mounting Rails: Compatible with NS 35/7.5, NS 35/15, and NS 32 mounting rails.
- Wire Gauge: Supports 0.5 mm² to 16 mm² (AWG 20-8).
- Electrical Systems: Suitable for systems with a nominal voltage up to 500V and current up to 57A.
Care:
- Keep the terminal block clean and free from dust and debris.
- Periodically check screw connections for tightness, especially after significant temperature fluctuations.
- Ensure the sliding mechanism operates smoothly. If stiff, check for obstructions or debris.
- Avoid exposing the terminal block to corrosive chemicals or excessive moisture.