Terminal blocks for a range of applications, including industrial control, telecom equipment, automotive, consumer electronics, power supply, instruments, space and aviation, are available from suppliers in China.
In mainstream supply are barrier-strip, screw, plug-in and rail types in male and female gender with two to 24 poles in single or dual rows. They can be made to be compatible with various wire sizes, from as large as 14AWG to as small as 28AWG. Typical units have an operating temperature of -40 to 105 C.
There are also options based on electrical properties such as rated voltage and current, and contact and insulation resistance.
Terminal blocks outside these specifications can also be manufactured. Interviewed suppliers said that 30 to 70 percent of their shipments consist of such custom-made products.
To guarantee the reliability, stability and safety of their terminal blocks, suppliers ensure compliance with UL, cUL, VDE, IEC and RoHS requirements.
For materials, they use copper, tin, stainless steel and plastics such as nylon and LCP sourced domestically or overseas. Fluctuations in the cost of copper in the past year did not impact terminal block prices. This relative stability is expected to persist throughout 2025.
Here are terminal blocks from verified suppliers on GlobalSources.com.
Six-pin terminal block for 16 to 26AWG wires
Company: Dongguan MTCONN Electronics Co. Ltd
The MTTB43-006SBG-76336-7309 from Dongguan MTCONN is a terminal block with six pins and 3.81mm pitch. It has 150V rated voltage, 10A rated current in AC and DC, 2,000VAC/min withstand voltage, 1,000Mohm minimum insulation resistance and -40 to 105 C operating voltage. This connector accepts 16 to 26AWG wires.
MOQ: 1,000 units
Lead time: 10 days
300V, 8A-rated terminal block
Company: Dongguan MTCONN Electronics Co. Ltd
This terminal block from Dongguan MTCONN, the MTTB42-605SBB-34336-1998, has a rated voltage of 300V, rated current of 8A, dielectric withstand voltage of 2,000VAC/min, minimum insulation resistance of 500Mohms and operating temperature of -40 to 105 C.
MOQ: 1,000 units
Lead time: 10 days
3.5mm-pitch terminal block
Company: Elete Technology Co. Ltd
Elete’s 15EELKNHG-3.5 is a Phoenix Contact 1790580 equivalent with 3.5mm pitch. Its rated voltage is 150 or 160V, rated current 8A, withstand voltage 1,600VAC/min and operating temperature -40 to 105 C. This terminal block accepts 16 to 24AWG wires and requires 9 to 10mm stripping length.
MOQ: 2,000 units
Lead time: 10 days
Pluggable terminal block
Company: Elete Technology Co. Ltd
Elete’s pluggable terminal block, the 2EELVC-5.08-02P-14-100, is a Phoenix 1755736 equivalent. It has 300 or 320V rated voltage, 15 or 20A rated current and 1,600VAC/min withstand voltage. This 5.08mm-pitch connector operates in -40 to 105 C. It meets RoHS requirements.
MOQ: 1,000 units
Lead time: 10 days
Terminal block, 300 or 750V rated voltage
Company: Keifo Electronic Co. Ltd
The HB951M-0981 terminal block from Keifo has 300 or 750V rated voltage, 10 or 17.5A rated current, 500Mohm insulation resistance at 500VDC and -40 to 105 C operating temperature. It is compatible with 16 to 22AWG wires.
MOQ: 5,000 units
Lead time: 5 days
Terminal block, 10 or 20A rated current
Company: Keifo Electronic Co. Ltd
Keifo’s HT508 terminal block has 300 or 320V rated voltage, 10 or 20A rated current, 20mohm contact resistance, 500Mohm insulation resistance at 500V, 2,000VAC/min withstand voltage and -40 to 105 C operating temperature. It accepts 12 to 24AWG wires.
MOQ: 5,000 units
Lead time: 5 days
