Why the bare module instead of a kit?

Choose the module if you already have an ISOBUS cable for your tractor (or plan to route one) and your own enclosure, or if you want to integrate the module into a larger control panel. You build the install exactly how you want it.

Can I add a connector kit to my order?

Yes. The In-Cab Connector Kit and the External Connector Kit are add-ons you tick next to the module's Add to cart button. They aren't sold on their own, so add the one you need when you order the module. No enclosure is included: supply your own IP65 box if the module mounts outdoors.

What enclosure do I need for outdoor use?

Any IP65 or better junction box big enough for the module. This one is 90 × 175 mm on a DIN rail, so a standard ABS or polycarbonate enclosure works fine. Add glands for your cables and a short length of DIN rail inside.

How does AUX-N button assignment actually work?

The module registers itself as an AUX function on the tractor's ISOBUS network. You open the AUX-N menu on the Virtual Terminal, pick one of the tractor's joystick or armrest buttons, and map it to a channel. Toggle or momentary is selected in the module's own screen menu.

ISOBUS Block 8-Channel Relay Module

Name: ISOBUS Block 8-Channel Relay Module
Brand: ISOBUS Block
SKU: ISOBUSBLOCK-MODULE
Price: 1099 USD
Availability: InStock

Description

A relay module that speaks ISOBUS. Wire your loads to it and control them from the tractor's own screen. A full implement conversion, a third function on a front loader, a one-off build: same module, different wiring. Plug it into any ISOBUS tractor and it shows up on the Virtual Terminal with 8 channels, CH1 to CH8. Control them from the screen, or assign them to any AUX-N joystick or armrest button. Each button is toggle (TOG) or momentary (MOM), and can switch one channel or several. The assignments are stored in the tractor, so hook up next season and they are still there. The buttons are yours to name. Type a name on the screen, pick an icon, and the tractor shows exactly that, on the terminal and in the AUX-N assignment menu. The button for the diverter valve says DIVERTER. 8 × 10 A relay outputs handle work lights, solenoids, diverter valves, beacons, any 12 V or 24 V load within the rating. Each channel gives you NO, COM and NC terminals, so normally-open and normally-closed wiring both work. The ISOBUS connection powers the module itself; the loads take their own feed, from the battery or through the tractor's external ISOBUS connector, which the tractor fuses at 60 A. 8 digital inputs on the same module. Wire up a proximity sensor, a limit switch, a pressure switch or a cab panel switch, and it can run the relays for you. 5–36 V, optocoupler isolated; dry contact, NPN and PNP sensors all work. You arm the automation from the tractor screen or an AUX-N button, and the moment you touch a manual control it steps aside. Manual always wins. Nothing arms itself, nothing resumes on its own, and no combination of settings can chatter a relay: the relay-protection floors are fixed in firmware. Everything is set up on the tractor screen. Firmware updates are free, over WiFi. What you get Relay module with screw terminals, and a quick-start guide. DIN-rail ABS housing, rated IP20: cab or panel mounting. Out on the implement, give it a weatherproof enclosure. Who it's for Operators and integrators adding outputs to a tractor without a second screen and without being locked into one brand's control system. The relay side is plain screw terminals, NO, COM and NC per channel. How you install it Mount it on a DIN rail. Wire your loads to the relay side (NO, COM, NC). Plug an ISOBUS cable into the tractor, in-cab or rear ISOBUS connector, whichever suits your install. Assign the buttons from the tractor screen. Drive. The connector kits next to Add to cart are the mating ISOBUS connector plus loose contacts you crimp onto your own cable, for the in-cab or the external socket. If you would rather have it arrive built, wired and named for your machine, fully or part-way, ask about a custom build.

How It Works

Name it. Assign it. Press it.

Mount it, wire your loads, plug in one ISOBUS cable, and set up your buttons on the tractor screen. A screwdriver does the module end.

Step 1

Name your button

Type a name (up to 8 characters), pick an icon, select which outputs it controls, and choose toggle or momentary mode.

ISOBUS Block dashboard with custom-named buttons and icons

Step 2

See it on the screen

Your buttons show up on the tractor display with the names and icons you chose. Pick a layout that fits your setup.

Step 3

Assign to your joystick

Open the tractor's AUX-N menu. Your named buttons appear there. Assign them to any joystick or armrest button you want.

Step 4

Press it

Your joystick button switches the relay. Active outputs light up green on the screen. That's the whole system.

Before & After

What actually changes

Same tractor. Same cab. Completely different setup.

Drilling holes, mounting switches

Clean cab, no modifications

Relay boards, fuses, wire harnesses

One ISOBUS cable, done

Hard-wired, can't change it

Reassign any output from the screen

Reaching across the cab for toggle switches

Everything on your joystick hand

Which switch was the work light again?

Labels on the tractor display

AUX-N Control

8 Inputs in Your Tractor

The module shows up in your tractor's AUX-N menu with 8 assignable inputs. Pick a button, pick an output, done. Your assignments are stored in the tractor. Reconnect next season and they're still there.

Group Channels Together

One button press, multiple relays. Open a valve and turn on a work light at the same time.

Toggle or Momentary

Toggle stays on until you press again. Momentary activates while you hold. Set it per channel.

Custom Names & Icons

Name each channel (up to 8 characters) and pick an icon. Your names and icons show up on the screen and in the joystick assignment page.

ISOBUS Block Virtual Terminal interface on Fendt screen with custom channel names and icons

Custom names and icons on the Virtual Terminal. Active channels highlighted in green

Fendt AUX-N assignment page showing ISOBUS Block custom names and icons on joystick buttons

Same names and icons carry over to the joystick button assignments

See it in action

The actual screens you'll use: button editor, layout options, AUX-N assignment, and more.

ISOBUS Block dashboard with 8 custom-named buttons and icons

ISOBUS Block layout selector: 2x4, 4x2, 1x8, BIG4, BIG2

Name each button, pick an icon, choose outputs and mode

Let a sensor do the switching

The module has 8 digital inputs. Wire a proximity sensor, a limit switch, a pressure switch or a switch on the cab panel to one, and it can switch the relay outputs for you. 5 to 36 V, optocoupler isolated. Dry contact, NPN and PNP sensors all work.

You decide when it runs. Arm it from the tractor screen, or from an armrest button you assigned to it. All of it is set up on the terminal. No laptop, no app, no programming.

A customer arms an AUTO tile on the terminal, then the sensor that runs it, out on the implement.

Follow

Output on while the input is active.

A sensor on the wagon door. When the load pushes the door open, a buzzer sounds in the cab.

Toggle

Each pulse flips the output on or off.

Block

Forces the outputs off while the input is active.

For an end switch or a limit switch. It stops the automation, never your own button press.

Manual always wins

Grab the joystick and the automation drops out. Any control that overlaps a running function disarms it: a joystick press, an armrest button, a screen button, the web interface. The automation never blocks, limits or delays what you do by hand.

Automation never resumes by itself. Re-arming is one deliberate press.
Nothing arms itself. After a power cycle everything is manual again.
A latched STOP holds every output off until you release it, whatever else is asking for them.

Tune each input to the machine

Five settings per input, stored per preset, set with steppers on the terminal. The same page shows a live IN and OUT indicator, the raw sensor state next to the filtered result.

Setting	What it does	Range
Debounce	Filters contact bounce and electrical noise.	10 ms to 1 s
On delay	The sensor has to mean it before anything moves. Ignores bumps and blips.	0 to 10 s
Off delay	Stops hunting when a sensor sits right on its trigger point.	0 to 10 s
Min on	Once the relay switches on it stays on this long, so a twitchy sensor cannot chatter it on and off. That is also what saves the relay.	0 to 10 s
Max on	Ceiling on continuous on-time. Catches a sensor that fails stuck-on.	No limit, or 1 to 300 s

Hard floors of 100 ms on and 100 ms rest are built in. No combination of settings can chatter a relay from the input side.

What it is not

This is not a safety system. A block input or an interlock stops the automation. It does not stop you, because manual control is never blocked. STOP holds every output off until you release it, but it is an operator control, not an emergency stop. If a movement has to be stopped whatever happens, fit a mechanical end stop.

An input is either on or off, nothing in between. It does not measure a level, count pulses or read a frequency. Two inputs can be interlocked so they never run at the same time, and that is the only logic between them.

Everything is set up on the tractor terminal. The web interface only tests outputs and updates firmware, and switching an output there turns the automation off.

Read the automation guide

Specifications

Built for the field. 8 relay channels, 10A each, 7–36V input. Set up everything from the tractor screen.

ISOBUS Native

Shows up on your Virtual Terminal. Works with any ISOBUS tractor: John Deere, Case IH, New Holland, Kubota, AGCO.

WiFi Built In

Test outputs, check status, update firmware from your phone's browser. No app, no account, no cloud: the module serves the page itself.

12V and 24V

7–36V DC input. Any ISOBUS tractor, 12 V or 24 V system.

Professional Grade

Designed in Finland. Built for the field, not the bench.

Machine side: CAN and power

Relay side: 8 channel terminals

DIN rail mount clips

Supply voltage	7–36V DC
Relay channels	8 (NO, COM, NC per channel)
Max current	10A per channel
Max switching voltage	30V DC / 250V AC
Protection	Optocoupler isolation, power isolation
Enclosure	Rail-mount ABS housing (indoor use; requires weatherproof enclosure for outdoor installation)
Dimensions	3.5 × 6.9 in (90 × 175 mm)
Weight	1.1 lb (500 g)
Operating temperature	−22°F to +122°F
Warranty	5 years

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ISOBUS Block 8-Channel Relay Module

Description

Which connector kit?