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 buy just the harness or enclosure separately?

No — the cabin harness and the weatherproof enclosure come only as part of the Cabin and Implement kits, not on their own. Pick the version you need when you order. If you're not sure, the bare module is the flexible choice: add your own ISOBUS cable and enclosure to suit your install.

What enclosure do I need for outdoor use?

Any IP65 or better junction box big enough for a 90 × 175 mm DIN-rail module. Standard ABS or polycarbonate enclosures work 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. Plug it into any ISOBUS tractor and it shows up in the Universal Terminal with 8 channels — CH1 to CH8. Assign each channel to any AUX-N joystick or armrest button, or switch it straight from the screen. Toggle (TOG) or momentary (MOM), per channel. Button assignments live in the tractor, so they stay there across seasons. 8 × 10A outputs for work lights, solenoids, diverter valves, beacons — any 12V or 24V load. Each channel gives you NO, COM, and NC terminals for normally-open or normally-closed wiring. What you get Relay module. Screw terminals. Quick-start guide. DIN-rail ABS housing (IP20 — indoor or panel mount; add your own weatherproof enclosure for implement installs). 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 module is the building block — you decide what to wire to it. How you install it Mount 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. Want the cabin wiring already done? See the cabin-harness bundle. Want a weatherproof plug-and-play for the implement? See the implement kit.

How It Works

Name it. Assign it. Press it.

Plug in one ISOBUS cable, wire your loads, then set up your buttons from the tractor screen.

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.

Want less wiring work?

ISOBUSBLOCK-CABIN

ISOBUS Block + In-Cabin Wiring Harness

$1,249

Module plus a pre-built 1.8 m harness to the in-cab ISOBUS connector.

See this option

ISOBUSBLOCK-IMPLEMENT

ISOBUS Block + Plug-and-Play Implement Kit

$1,799

Full kit in an IP-rated box. Bolt it on the implement, run one cable to the tractor.

See this option

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

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. Connect with your phone — open a browser, no app needed.

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