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PowerWize 3.40mm Interconnects

Molex PowerWize 3.40mm Interconnects leverage Coeur socket technology to deliver power efficiency crucial for cost management. This high-power series features free-hanging and panel-mount housings and right-angle or vertical pin-in-paste reflow SMT-capable headers. Two mechanically keyed color options (black and white/natural) prevent mismating, and the connectors are touch-proof per UL 60950 for safety protection during handling. These interconnects offer optimal current-carrying capacity up to 75A with multiple contact beams that ensure low contact resistance, minimal heat generation, and low voltage drop. Positive-locking headers and receptacles provide secure mating and tactile feedback, and the headers support both pin-and-paste SMT reflow and wave solder processing. Typical applications include industrial automation, telecommunications, and networking.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (GBP) Filter the results in the table by unit price based on your quantity.	Qty.
Headers & Wire Housings PwrWize 3.4mm, 2-circuit, Mechanical Keying Option 1, Color Coded Black, Plug Housing, Bag 2281860001 Molex 1: £0.788 600In Stock New Product	Mfr. Part No. 2281860001 Mouser Part No 538-2281860001 New Product	Molex	Headers & Wire Housings PwrWize 3.4mm, 2-circuit, Mechanical Keying Option 1, Color Coded Black, Plug Housing, Bag Learn More about Molex powerwize 3 40mm interconnects	Datasheet	600In Stock	£0.788 £0.668 £0.641 £0.60 View £0.546 £0.491 £0.448 £0.419 £0.41	Min.: 1 Mult.: 1
Headers & Wire Housings PwrWize 3.4mm, 2-circuit, Mechanical Keying Option 2, Color Coded Natural, Plug Housing, Bag 2281860002 Molex 1: £0.788 600In Stock New Product	Mfr. Part No. 2281860002 Mouser Part No 538-2281860002 New Product	Molex	Headers & Wire Housings PwrWize 3.4mm, 2-circuit, Mechanical Keying Option 2, Color Coded Natural, Plug Housing, Bag Learn More about Molex powerwize 3 40mm interconnects	Datasheet	600In Stock	£0.788 £0.668 £0.641 £0.60 View £0.546 £0.491 £0.448 £0.419 £0.41	Min.: 1 Mult.: 1
Headers & Wire Housings PwrWize 3.4mm, 2-circuit, Mechanical Keying Option 2, Color Coded Natural, Plug Housing w/ Panel Mount Ears, Bag 2281870002 Molex 1: £0.811 600In Stock New Product	Mfr. Part No. 2281870002 Mouser Part No 538-2281870002 New Product	Molex	Headers & Wire Housings PwrWize 3.4mm, 2-circuit, Mechanical Keying Option 2, Color Coded Natural, Plug Housing w/ Panel Mount Ears, Bag Learn More about Molex powerwize 3 40mm interconnects	Datasheet	600In Stock	£0.811 £0.693 £0.664 £0.622 View £0.566 £0.509 £0.464 £0.435 £0.425	Min.: 1 Mult.: 1
Headers & Wire Housings PwrWize 3.4mm, 2-circuit, Mechanical Keying Option 1, Color Coded Black, Plug Housing w/ Panel Mount Ears, Bag 2281870001 Molex 1: £0.811 600In Stock New Product	Mfr. Part No. 2281870001 Mouser Part No 538-2281870001 New Product	Molex	Headers & Wire Housings PwrWize 3.4mm, 2-circuit, Mechanical Keying Option 1, Color Coded Black, Plug Housing w/ Panel Mount Ears, Bag Learn More about Molex powerwize 3 40mm interconnects	Datasheet	600In Stock	£0.811 £0.693 £0.664 £0.622 View £0.566 £0.509 £0.464 £0.435 £0.425	Min.: 1 Mult.: 1
Power to the Board PwrWize 3.4mm, 2-circuit, Solder Tail, Mechanical Keying Option 1, Color Coded Black, Right Angle Header, T/R 221887-3421 Molex 1: £11.08 360In Stock New Product	Mfr. Part No. 221887-3421 Mouser Part No 538-221887-3421 New Product	Molex	Power to the Board PwrWize 3.4mm, 2-circuit, Solder Tail, Mechanical Keying Option 1, Color Coded Black, Right Angle Header, T/R Learn More about Molex powerwize 3 40mm interconnects	Datasheet	360In Stock	Cut Tape £11.08 £9.83 £9.45 £8.45 Reel £8.45 £8.29	Min.: 1 Mult.: 1 : 90
Power to the Board PwrWize 3.4mm, 2-circuit, Solder Tail, Mechanical Keying Option 2, Color Coded Natural, Right Angle Header, T/R 221887-3422 Molex 1: £11.08 360In Stock New Product	Mfr. Part No. 221887-3422 Mouser Part No 538-221887-3422 New Product	Molex	Power to the Board PwrWize 3.4mm, 2-circuit, Solder Tail, Mechanical Keying Option 2, Color Coded Natural, Right Angle Header, T/R Learn More about Molex powerwize 3 40mm interconnects	Datasheet	360In Stock	Cut Tape £11.08 £9.83 £9.45 £8.45 Reel £8.45 £8.29	Min.: 1 Mult.: 1 : 90
Power to the Board PwrWize 3.4mm, 2-circuit, Solder Tail, Mechanical Keying Option 1, Color Coded Black, Vert. Header, T/R 221888-3421 Molex 1: £8.49 360In Stock New Product	Mfr. Part No. 221888-3421 Mouser Part No 538-221888-3421 New Product	Molex	Power to the Board PwrWize 3.4mm, 2-circuit, Solder Tail, Mechanical Keying Option 1, Color Coded Black, Vert. Header, T/R Learn More about Molex powerwize 3 40mm interconnects	Datasheet	360In Stock	Cut Tape £8.49 £7.53 £7.24 £6.57 Reel £6.57 £6.56	Min.: 1 Mult.: 1 : 90
Power to the Board PwrWize 3.4mm, 2-circuit, Solder Tail, Mechanical Keying Option 2, Color Coded Natural, Vert. Header, T/R 221888-3422 Molex 1: £8.49 360In Stock New Product	Mfr. Part No. 221888-3422 Mouser Part No 538-221888-3422 New Product	Molex	Power to the Board PwrWize 3.4mm, 2-circuit, Solder Tail, Mechanical Keying Option 2, Color Coded Natural, Vert. Header, T/R Learn More about Molex powerwize 3 40mm interconnects	Datasheet	360In Stock	Cut Tape £8.49 £7.53 £7.24 £6.95 Reel £6.95 View £6.56 £5.46	Min.: 1 Mult.: 1 : 90
Terminals PwrWize 3.4mm Silver Plated Copper Alloy Crimp Pin, 8 AWG, Tray 2281920001 Molex 1: £4.16 900In Stock New Product	Mfr. Part No. 2281920001 Mouser Part No 538-2281920001 New Product	Molex	Terminals PwrWize 3.4mm Silver Plated Copper Alloy Crimp Pin, 8 AWG, Tray Learn More about Molex powerwize 3 40mm interconnects	Datasheet	900In Stock	£4.16 £4.13 Quote Quote	Min.: 1 Mult.: 1
Terminals PwrWize 3.4mm Silver Plated Copper Alloy Crimp Pin, 10 AWG, Tray 2281920002 Molex 1: £4.16 900In Stock New Product	Mfr. Part No. 2281920002 Mouser Part No 538-2281920002 New Product	Molex	Terminals PwrWize 3.4mm Silver Plated Copper Alloy Crimp Pin, 10 AWG, Tray Learn More about Molex powerwize 3 40mm interconnects	Datasheet	900In Stock	£4.16 £4.13 Quote Quote	Min.: 1 Mult.: 1
Headers & Wire Housings PwrWize 3.4mm, 2-circuit, Solder Tail, Mechanical Keying Option 2, Color Coded Natural, Right Angle Header, Tray 221887-3322 Molex 1: £10.20 193In Stock New Product	Mfr. Part No. 221887-3322 Mouser Part No 538-221887-3322 New Product	Molex	Headers & Wire Housings PwrWize 3.4mm, 2-circuit, Solder Tail, Mechanical Keying Option 2, Color Coded Natural, Right Angle Header, Tray Learn More about Molex powerwize 3 40mm interconnects	Datasheet	193In Stock	£10.20 £8.15 £7.27 £7.26 £6.88	Min.: 1 Mult.: 1
Headers & Wire Housings PwrWize 3.4mm, 2-circuit, Solder Tail, Mechanical Keying Option 1, Color Coded Black, Vert. Header, Tray 221888-3321 Molex 1: £6.50 485In Stock 648Expected 03/11/2026 New Product	Mfr. Part No. 221888-3321 Mouser Part No 538-221888-3321 New Product	Molex	Headers & Wire Housings PwrWize 3.4mm, 2-circuit, Solder Tail, Mechanical Keying Option 1, Color Coded Black, Vert. Header, Tray Learn More about Molex powerwize 3 40mm interconnects	Datasheet	485In Stock 648Expected 03/11/2026	£6.50 £6.30 £5.05 £4.67 View £4.66 £4.61 £4.20	Min.: 1 Mult.: 1
Headers & Wire Housings PwrWize 3.4mm, 2-circuit, Solder Tail, Mechanical Keying Option 2, Color Coded Natural, Vert. Header, Tray 221888-3322 Molex 1: £6.50 411In Stock New Product	Mfr. Part No. 221888-3322 Mouser Part No 538-221888-3322 New Product	Molex	Headers & Wire Housings PwrWize 3.4mm, 2-circuit, Solder Tail, Mechanical Keying Option 2, Color Coded Natural, Vert. Header, Tray Learn More about Molex powerwize 3 40mm interconnects	Datasheet	411In Stock	£6.50 £6.30 £5.05 £4.67 View £4.66 £4.20	Min.: 1 Mult.: 1
Headers & Wire Housings PwrWize 3.4mm, 2-circuit, Mechanical Keying Option 1, Color Coded Black, Recept. Housing, Bag 221597-3001 Molex 1: £0.691 701In Stock New Product	Mfr. Part No. 221597-3001 Mouser Part No 538-221597-3001 New Product	Molex	Headers & Wire Housings PwrWize 3.4mm, 2-circuit, Mechanical Keying Option 1, Color Coded Black, Recept. Housing, Bag Learn More about Molex powerwize 3 40mm interconnects	Datasheet	701In Stock	£0.691 £0.586 £0.523 £0.47 View £0.447 £0.446 £0.419 £0.393 £0.392	Min.: 1 Mult.: 1
Headers & Wire Housings PwrWize 3.4mm, 2-circuit, Mechanical Keying Option 2, Color Coded Natural, Recept. Housing, Bag 221597-3002 Molex 1: £0.691 857In Stock New Product	Mfr. Part No. 221597-3002 Mouser Part No 538-221597-3002 New Product	Molex	Headers & Wire Housings PwrWize 3.4mm, 2-circuit, Mechanical Keying Option 2, Color Coded Natural, Recept. Housing, Bag Learn More about Molex powerwize 3 40mm interconnects	Datasheet	857In Stock	£0.691 £0.586 £0.523 £0.47 View £0.447 £0.434 £0.419 £0.393 £0.392	Min.: 1 Mult.: 1
Terminals PwrWize 3.4mm Silver Plated Copper Alloy Crimp Socket, 8 AWG, Tray 221616-3001 Molex 1: £6.34 115In Stock 1,344Expected 01/02/2027 New Product	Mfr. Part No. 221616-3001 Mouser Part No 538-221616-3001 New Product	Molex	Terminals PwrWize 3.4mm Silver Plated Copper Alloy Crimp Socket, 8 AWG, Tray Learn More about Molex powerwize 3 40mm interconnects	Datasheet	115In Stock 1,344Expected 01/02/2027	£6.34 £5.39 £5.05 £4.81 View £4.54 £4.21	Min.: 1 Mult.: 1
Terminals PwrWize 3.4mm Silver Plated Copper Alloy Crimp Socket, 10 AWG, Tray 221616-3002 Molex 1: £6.36 254In Stock New Product	Mfr. Part No. 221616-3002 Mouser Part No 538-221616-3002 New Product	Molex	Terminals PwrWize 3.4mm Silver Plated Copper Alloy Crimp Socket, 10 AWG, Tray Learn More about Molex powerwize 3 40mm interconnects	Datasheet	254In Stock	£6.36 £5.41 £5.07 £4.84 View £4.57 £4.07 £4.06	Min.: 1 Mult.: 1
Headers & Wire Housings PwrWize 3.4mm, 2-circuit, Solder Tail, Mechanical Keying Option 1, Color Coded Black, Right Angle Header, Tray 221887-3321 Molex 1: £10.20 110In Stock New Product	Mfr. Part No. 221887-3321 Mouser Part No 538-221887-3321 New Product	Molex	Headers & Wire Housings PwrWize 3.4mm, 2-circuit, Solder Tail, Mechanical Keying Option 1, Color Coded Black, Right Angle Header, Tray Learn More about Molex powerwize 3 40mm interconnects	Datasheet	110In Stock	£10.20 £8.15 £7.27 £7.26 £6.88	Min.: 1 Mult.: 1

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PowerWize 3.40mm Interconnects

Types of Connectors