Specifications: The MA321 series PCB
terminal blocks are available in two models: MA321-500 and MA321-100. The pitch for MA321-500 is 5.00mm, while for MA321-100, it is 10.00mm. Both models support 2 to 24 poles for MA321-500 and 2 to 14 poles for MA321-100. The housing material is PA 66 for both models. The spring material varies between brass with gold, tin, or nickel plating for MA321-500 and stainless steel for MA321-100. Contact materials are brass with tin plating for MA321-500 and nickel plating for MA321-100. The screw thread is M2.6, made of steel and zinc plated for both models. Wire size compatibility ranges from 14 to 26 AWG, with a wire strip length of 5mm to 6mm. The PCB hole diameter is 1.4mm for both models. Maximum tightening torque is 4.0 Lb-in for MA321-500 and 3.0 Lb-in for MA321-100.
Technical Data:
The connection complies with EN-VDE standards. The nominal current is 10A for MA321-500 and 15A for MA321-100. Both models have a nominal voltage of 300V according to UL/CUL standards. The insulating material is PA with a UL94 V0 rating. The maximum load current is consistent with the nominal current for each model.
PCB Layout:
The PCB layout for MA321-500 features dimensions of 5.00xPmm and 8.00 (0.315”), with various other measurements provided for precise installation. Similarly, the MA321-100 layout is specified with dimensions of 10.00xP-5.00mm and 8.00 (0.315”), along with additional measurements for accurate placement.
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