Why the Screw Type Terminal Block need to be with the shrapnel?
In general, when the power engineer connects the 2-terminal 2-strand wires, the scrw type terminal blocks are manually inserted into the stripped wires, and then the copper on the power line contacts the terminal metal parts (galvanized copper) by screwing down the screws, so that the wires can be connected safely.
Therefore, in the case of manual operation, if the tightened screws fall off or the force is uneven, the copper and terminal blocks of the power line to be connected will fall off.
Therefore, the screw type terminal block with shrapnel spring piece is to solve the above problems.
Terminal blocks with shrapnel can well prevent falling off. When the engineer tightens the screws downward, the metal parts (copper) with shrapnel will expand the contact area between the power cord and the shrapnel due to the shrapnel. At the same time, it will also generate downward elasticity. As long as the screws are not loose, the shrapnel can well clamp the corresponding power cord.
Specificaion of Taiding Electric Screw Terminal Block
Here is the Technical Data of our company Foshan Taiding Electric- Screw Type Terminal Block
| Test Standard | IEC60998-2-1 | UL1059 | |
| Pitch /mm | 12 | ||
| Number Of Poles | 12P | ||
| Standard: | IEC60998-2-1 | ||
| Rated Insulation Voltage/V | 1000 | ||
| Rated Current/Amp- | 41A | ||
| Rated Connection Capacity(Solid Standatd)/mm² | 6 | ||
| Surge Voltage Category/pollution degree/material group | ||/2/| | ||
| Frequency Voltage/V | AC2500V/1 minute | ||
| Rated Surge Voltage: /V | 4000 | ||
| Rated Torque / N.m | 0.8 | ||
| UL1059 | |||
| Use Group | B | C | D |
| Rated Insulation Voltage/V | 600 | / | 600 |
| Rated Current/Amp | 30 | 5 | |
| Rated Connection Capacity(Solid Standatd)/ AWG | 14~10 | ||
| Rated Torque / Lbf.in | 7.02 | ||
| Other Data | |||
| Ambient Temperature / ℃ | -40~+105 | ||
| Stripping Length / mm | 6~7 | ||
| Plastic Material/ Inflammability class | PA66/UL94 V-2 | ||
| Screw Specification/Material/Plating | M3.5(Steel)/Zine Plating | ||
| Conductor Material/Plating | Copper Alloy/Nickel Plating | ||
| Thread Guard | Stainless Steel | ||
| The Use Of Technology | |||
| The Terminal Blocks(N poles) connector used welding way connected with PCB board, wave 260±5℃/5s,2,a, a total of 10s, hand-wleded inron 350+5C/10s,connection with the use of the following. | |||
| ITEN NO. | PG-820UK |
