You don't need to worry about a twist between the wires when you combine the wires. These lever nuts. --All kinds of standard test probes can be used to check the lever nut. --There is a test hole at the back of the lever nut and the hole are designed to check whether the wires have.
eBay
T-type Quick Terminal Block Quick Electrical Cable Splice High Power Fast Connector Wire Connector Electrical
Aliexpress UK
Great for tapping into wires to test Use with the male quick disconnect for easy safe splicing into wires.5mm Junction Box (Fixed Wiring). Self -Locking Prevents the wire from shorting out Widely used in the wire connection.
eBay
10pcs Terminal Block Set, 7 Pieces 12 Position Dual Row Terminal Strip Electrical Barrier Wire Connector Block, 10A 380V
Aliexpress UK
Very easy to install and convenient for use. PCT-213: 21mm in length, 17.1mm in width and 14.4mm in height. Item color displayed in photos may be showing slightly different on your computer. PCT-212 (one in and one out) 30pcs.
eBay
10Pcs Din Rail Terminal Block PT-2.5 Push In Terminal Connector Spring Screwless Electrical Wire Conductor Terminal Block PT2.5
Aliexpress UK
Available in 4-way (50mm) and 10-way (120mm) versions, ideal for boats, RVs, trucks, solar, and industrial use. Red & Black Fork Link Bars. They are rated at 15A max per channel. There are 2 variants a 120mm, 10 way model and a 50mm, 4 way version.
eBay
UDK4-MTK Knife Disconnect Screw Connect Terminal Block, 4mm² Cable Wire Connector Electrical Din Rail Terminal Block UK UDK 4
Aliexpress UK
eBay
DIN Rail NS35/7.5 Steel/Aluminum Thickness 1mm/1.5mm NS 35-S/AL Mounting Terminal Block Installation Electrical Cabinet C45
Aliexpress UK
You don't need to worry about a twist between the wires when you combine the wires. All kinds of standard test probes can be used to check the lever nut. There is a test hole at the back of the lever nut and the hole are designed to check whether the wires have electricity or not.
eBay
5/10/50/100pcs Push-in Electrical Wire Connector Terminal Block Universal Fast Wiring Cable Connectors For Cable Connection
Aliexpress UK
Customizable Length: The connectors can be easily cut to your desired length, allowing for flexibility in different projects. 12 x 3 Amp connectors, suitable for lower-power applications. 12 x 5 Amp connectors, ideal for moderate power tasks.
eBay
Quick Multi-circuit Splicing Butt Wire Connector Terminal Block Compact Electrical Connectors Home Junction Box 222 223
Aliexpress UK
The Henley Block 100A 35mm Phase Colours Connector Block is a versatile electrical component designed to securely connect and route power for various electrical systems. Its compact size and rugged construction make it ideal for use in a range of industrial and commercial applications. With its reliable performance and easy connectivity, this connector block provides a practical solution for efficient power distribution and protection in a wide range of electrical setups.
eBay
20PCS Quick Cable Splitter Push-in Wire Connector Universal Compact Conductor Wiring Terminal Block For ELECTRICAL Connection
Aliexpress UK