M12 L-Code Power Splitter for Two IO-Link Masters

Last updated: 7 September 2026

An m12 l-code power splitter takes one incoming 16 A feed and breaks it into two L-coded outlets, so two IO-Link masters or two field modules can hang off a single home run. It removes one cable from the tray and one pair of terminals from the cabinet, and it shortens fault finding because the branch point is visible on the machine instead of buried inside a junction box.

What it replaces

The usual alternatives are a junction box with terminal blocks, or two separate home runs back to the cabinet. The junction box needs mounting space, a cable entry for each leg and a technician to terminate it; two home runs double the copper and the tray fill. An overmoulded splitter does the same job in a body that fits in the palm of a hand, and because the branch is moulded rather than terminated on site there are no screws to work loose over time. Panel-mount and free-hanging versions are both available, so the splitter can sit on an enclosure wall or be strapped to the machine frame.

Feed and branch ratings

The inlet is a five-position L-coded male connector in a 4 + FE arrangement, with two L-coded female outlets on the branches. Published figures for comparable parts put the total current at 16 A with each branch limited to 12 A, but those are competitor values, and they depend entirely on the conductor size feeding the splitter and on the ambient temperature at the point of installation. Treat them as a starting point for laying out a machine, not as a design limit. We will confirm the real numbers against the supplier datasheet before you order, and we will say so plainly if the duty you have in mind needs a larger conductor.

Sizing the run

Voltage drop over the feed is usually the binding constraint rather than the connector rating, and it is the one most often overlooked on a long run out to a remote I/O island. A branch rated for 12 A tells you nothing about the voltage actually arriving at the load if the feed is thirty meters of undersized copper. Send us the load current on each branch, the length of the feed and of each branch, and the ambient temperature, and we will size the conductor on both sides of the splitter and return the calculation with the quotation.

Build options

• One L-coded male inlet to two L-coded female outlets
• PUR overmoulded body for washdown, oil and coolant exposure
• Version with an LED power indicator visible on the body
• Panel-mount housing or free-hanging body with fixing holes
• Custom branch lengths and outlet orientation for volume orders

Before you order

Tell us the mating receptacles already on your masters or modules so we can confirm coding and pinout before production. An L-coded splitter is keyed so it cannot be mated into a mains-voltage K-coded or S-coded outlet, but it is worth checking the codings actually fitted on site, because mixed panels are common on machines that have been modified over several years. Where the splitter feeds modules from different suppliers, we can supply a pinout drawing for approval.

You May Also Need

• M12 L-Code 16A Cable for IO-Link Power and AGV Drives
• M12 Power T-Code or L-Code DC Power Cable

Related Cable Ranges

Signal and Data Cables • Automotive Cable Wire Harness • Panel Mount Cable

Frequently Asked Questions