DB080403-2-07N, LANBAO, sensor distribution box M8, 4 ports 3pin, PUR 7m, NPN

DB080403-2-07N is a sensor box with 4 three-pin M8 sockets, designed for mounting directly on the machine. The signals leave through a single PUR cable 7 m long; it contains 6 cores – brown (+), blue (−) and four signal wires – green for port 1, white for port 2, grey for port 3 and yellow for port 4. The output has NPN logic and NO switching function. Diagnostics are made easier by a yellow LED above each port.

When to choose this variant

• PUR jacket for moving installation. Withstands repeated bending in a drag chain, oil and coolant emulsion, and resists abrasion better than PVC.
• Cable 7 m reaches even the far end of a conveyor or line without having to insert a coupling into the route.
• NPN version for machines with negative logic – typically Asian production lines and retrofits of older equipment.
• Four ports in 90 mm of length. Fits even where there is no room for an eight-port box.
• Degree of protection IP67. Potted interior, gold-plated contacts and an FKM O-ring – withstands dust, washdown and coolant emulsion. The condition is that every port is either occupied or closed with a cap.
• Current rating 2 A per port, 8 A in total. Enough even for fitting all ports with inductive sensors with higher consumption.

Technical specifications

Parameters according to the Lanbao manufacturer's catalogue (Industrial connection system). The material and length of the feed cable can be customised on request.

Feed cable wire assignment

The 7 m PUR feed cable has 6 cores. The colours correspond to the individual ports as follows:

In the NPN version, the LED is connected to supply plus. Port numbering corresponds to the print on the box cover.

What needs to be ordered additionally

The box is supplied without cables to the sensors. For full occupation, order 4 cables with M8 connector / 3 pins, male. To connect to the sockets of the distribution box, use the following Lanbao male cables and connectors:

The suffix -U denotes a PUR jacket, without it the cable is PVC; F is the straight and G the angled version. Close unused ports with a suitable cap to maintain the box's degree of protection.

Frequently asked questions

Does the box contain any electronics?

No. The box is passive; the ports are only connected to the feed cable and supplemented with LED indication. Each channel therefore needs its own PLC input. If you want to transmit all signals over one network cable, you need an active I/O module with a fieldbus.

Can it withstand washdown or coolant?

Yes. The box has IP67 protection: the interior is potted with epoxy resin, the contacts are gold-plated and the joint is sealed by an FKM O-ring that resists oils and coolant emulsions. Unused ports must be capped.

What is a passive sensor distribution box for?

It combines the signals of several sensors into one common line. Each sensor plugs into a port on the box, and only one cable then runs from the machine to the control cabinet. This shortens installation, cable length and the number of places where a wiring error can occur.