

Victron Energy BPP900800150 GX IO-Extender 150 | 8 Digital I/Os USB Expansion
8-Channel Digital I/O Expansion for Victron GX Devices USB Powered, Node-RED Compatible, Rated to 70V DC.
Product Overview
The Victron Energy GX IO-Extender 150 (BPP900800150) is a compact, USB-powered digital input/output expansion module that adds 8 configurable digital I/O channels to a Victron GX device. Each channel can be individually configured as either a digital input or a digital output, allowing tailored integration with sensors, actuators, switches, and control signals in professional marine, solar, off-grid, and RV power systems.
With a maximum load current of 4A, digital I/O voltage of 3.8V to 5.5V, and a maximum battery voltage of 70V DC, the IO-Extender 150 accommodates a range of resistive, capacitive, and inductive load types. It is fully compatible with Node-RED automation running on the GX device, enabling advanced custom logic, remote control, and automated system responses without requiring additional hardware. Operating across -20°C to +50°C, it suits the full range of Australian outdoor, marine, and vehicle environments.
Key Specifications
- Digital I/O channels: 8 (configurable as inputs or outputs)
- Power supply: USB (bus-powered)
- Digital I/O voltage: 3.8V – 5.5V
- Maximum load current: 4A (total — see Red-flags)
- Maximum battery voltage: 70V DC
- Operating temperature: -20°C to +50°C
- Load types: Resistive, capacitive, inductive
- Control interface: Node-RED / GX device interface
- Compatible with: Victron GX devices
- Dimensions: 123mm (L) × 67mm (W) × 23mm (D)
- IP rating: Not specified — confirm with Victron
- Weight: Not specified — confirm with Victron
- Warranty: Not specified — confirm with Victron
Features & Benefits
- 8 Configurable Digital I/O Channels — Each of the 8 channels can be independently set as either a digital input (for reading sensor states, switch positions, or logic signals) or a digital output (for controlling relays, indicators, or actuators). The flexible per-channel configuration allows the IO-Extender to be adapted to a wide range of system integration requirements without hardware modification.
- USB Bus-Powered — Draws power directly from the GX device's USB port — no separate power supply, fuse, or wiring run required. Plug-in installation with no additional power infrastructure to install or protect.
- Node-RED Automation Compatibility — Full compatibility with Node-RED running on the Victron GX device enables custom automation logic, conditional control, scheduled actions, and system-level responses based on I/O states. Suitable for advanced users building automated monitoring and control workflows across complex marine, solar, and off-grid installations.
- GX Device Interface Control — Can also be controlled directly via the GX device's built-in interface without Node-RED — providing straightforward I/O monitoring and output control for users who do not require advanced automation programming.
- Supports Resistive, Capacitive, and Inductive Loads — The 4A maximum load current and multi-load-type support covers a range of real-world output applications including relay coils, solenoids, LED indicators, and other inductive or capacitive accessories common in marine and off-grid installations.
- 70V DC Maximum Battery Voltage — Rated for battery bus voltages up to 70V DC, covering 12V, 24V, and 48V battery systems — the full range of common Victron Energy power system configurations.
- -20°C to +50°C Operating Range — Performs reliably across the temperature range encountered in Australian outdoor, marine, and vehicle applications — from cold alpine or mining environments to hot engine bays and tropical maritime conditions.
- Compact 123mm × 67mm × 23mm Profile — Small enough to mount inside an electrical enclosure, switchboard, or GX device cabinet without consuming significant panel space.
Technical Specs
| Specification | Detail |
|---|---|
| Brand | Victron Energy |
| Part Number | BPP900800150 |
| Digital I/O Channels | 8 (configurable inputs or outputs) |
| Power Supply | USB (bus-powered from GX device) |
| Digital I/O Voltage | 3.8V – 5.5V |
| Maximum Load Current | 4A total |
| Maximum Battery Voltage | 70V DC |
| Load Types | Resistive, Capacitive, Inductive |
| Control Interface | Node-RED / GX device interface |
| Compatible With | Victron GX devices |
| Operating Temperature | -20°C to +50°C |
| Length | 123mm |
| Width | 67mm |
| Depth | 23mm |
| IP Rating | Not specified — confirm with Victron |
| Weight | Not specified — confirm with Victron |
| Warranty | Not specified — confirm with Victron |
Compatible With / Goes Well With
Compatible systems:
- Victron Energy Cerbo GX
- Victron Energy CCGX (Color Control GX)
- Victron Energy Venus GX
- Other Victron GX platform devices with available USB port
Suitable applications:
- Solar power system I/O expansion and monitoring
- Marine electrical multi-zone control and sensing
- RV and caravan power management integration
- Off-grid power system automation and control
- Custom Node-RED automation workflows on Victron GX platforms
Pairs well with:
- Victron Energy Cerbo GX or CCGX (host GX device)
- Victron Energy BMV battery monitors and SmartSolar MPPT controllers
- Victron VE.Bus and VE.Direct connected inverters and chargers
- Node-RED automation flows for GX platform (Victron's community resources)
Frequently Asked Questions
Which Victron GX devices is the IO-Extender 150 compatible with?
The IO-Extender 150 is designed for integration with Victron GX devices including the Cerbo GX, CCGX, and Venus GX. Confirm compatibility with your specific GX model via the Victron Parts Checker or by contacting your authorised Victron reseller before purchasing.
How is the IO-Extender 150 powered?
The unit is USB bus-powered — it draws its operating power directly from a USB port on the connected Victron GX device. No separate power supply is required.
Can I use Node-RED to automate control of the IO-Extender channels?
Yes. The IO-Extender 150 is fully compatible with Node-RED automation running on the Victron GX platform, enabling custom logic flows, scheduled outputs, and conditional responses based on I/O states — without requiring additional hardware.
What is the 4A maximum load current, and does it apply per channel or across all 8 channels?
The supplier specifies 4A as the maximum load current. It is not confirmed whether this is a per-channel limit or a total combined limit across all output channels. Confirm the per-channel and total current distribution with Victron before designing a multi-output installation.
What does a 70V DC maximum battery voltage mean for my system?
70V DC covers 12V, 24V, and 48V battery system configurations — the full range of standard Victron Energy power system voltage levels. It does not extend to higher-voltage battery strings beyond 70V DC.
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Description
8-Channel Digital I/O Expansion for Victron GX Devices USB Powered, Node-RED Compatible, Rated to 70V DC.
Product Overview
The Victron Energy GX IO-Extender 150 (BPP900800150) is a compact, USB-powered digital input/output expansion module that adds 8 configurable digital I/O channels to a Victron GX device. Each channel can be individually configured as either a digital input or a digital output, allowing tailored integration with sensors, actuators, switches, and control signals in professional marine, solar, off-grid, and RV power systems.
With a maximum load current of 4A, digital I/O voltage of 3.8V to 5.5V, and a maximum battery voltage of 70V DC, the IO-Extender 150 accommodates a range of resistive, capacitive, and inductive load types. It is fully compatible with Node-RED automation running on the GX device, enabling advanced custom logic, remote control, and automated system responses without requiring additional hardware. Operating across -20°C to +50°C, it suits the full range of Australian outdoor, marine, and vehicle environments.
Key Specifications
- Digital I/O channels: 8 (configurable as inputs or outputs)
- Power supply: USB (bus-powered)
- Digital I/O voltage: 3.8V – 5.5V
- Maximum load current: 4A (total — see Red-flags)
- Maximum battery voltage: 70V DC
- Operating temperature: -20°C to +50°C
- Load types: Resistive, capacitive, inductive
- Control interface: Node-RED / GX device interface
- Compatible with: Victron GX devices
- Dimensions: 123mm (L) × 67mm (W) × 23mm (D)
- IP rating: Not specified — confirm with Victron
- Weight: Not specified — confirm with Victron
- Warranty: Not specified — confirm with Victron
Features & Benefits
- 8 Configurable Digital I/O Channels — Each of the 8 channels can be independently set as either a digital input (for reading sensor states, switch positions, or logic signals) or a digital output (for controlling relays, indicators, or actuators). The flexible per-channel configuration allows the IO-Extender to be adapted to a wide range of system integration requirements without hardware modification.
- USB Bus-Powered — Draws power directly from the GX device's USB port — no separate power supply, fuse, or wiring run required. Plug-in installation with no additional power infrastructure to install or protect.
- Node-RED Automation Compatibility — Full compatibility with Node-RED running on the Victron GX device enables custom automation logic, conditional control, scheduled actions, and system-level responses based on I/O states. Suitable for advanced users building automated monitoring and control workflows across complex marine, solar, and off-grid installations.
- GX Device Interface Control — Can also be controlled directly via the GX device's built-in interface without Node-RED — providing straightforward I/O monitoring and output control for users who do not require advanced automation programming.
- Supports Resistive, Capacitive, and Inductive Loads — The 4A maximum load current and multi-load-type support covers a range of real-world output applications including relay coils, solenoids, LED indicators, and other inductive or capacitive accessories common in marine and off-grid installations.
- 70V DC Maximum Battery Voltage — Rated for battery bus voltages up to 70V DC, covering 12V, 24V, and 48V battery systems — the full range of common Victron Energy power system configurations.
- -20°C to +50°C Operating Range — Performs reliably across the temperature range encountered in Australian outdoor, marine, and vehicle applications — from cold alpine or mining environments to hot engine bays and tropical maritime conditions.
- Compact 123mm × 67mm × 23mm Profile — Small enough to mount inside an electrical enclosure, switchboard, or GX device cabinet without consuming significant panel space.
Technical Specs
| Specification | Detail |
|---|---|
| Brand | Victron Energy |
| Part Number | BPP900800150 |
| Digital I/O Channels | 8 (configurable inputs or outputs) |
| Power Supply | USB (bus-powered from GX device) |
| Digital I/O Voltage | 3.8V – 5.5V |
| Maximum Load Current | 4A total |
| Maximum Battery Voltage | 70V DC |
| Load Types | Resistive, Capacitive, Inductive |
| Control Interface | Node-RED / GX device interface |
| Compatible With | Victron GX devices |
| Operating Temperature | -20°C to +50°C |
| Length | 123mm |
| Width | 67mm |
| Depth | 23mm |
| IP Rating | Not specified — confirm with Victron |
| Weight | Not specified — confirm with Victron |
| Warranty | Not specified — confirm with Victron |
Compatible With / Goes Well With
Compatible systems:
- Victron Energy Cerbo GX
- Victron Energy CCGX (Color Control GX)
- Victron Energy Venus GX
- Other Victron GX platform devices with available USB port
Suitable applications:
- Solar power system I/O expansion and monitoring
- Marine electrical multi-zone control and sensing
- RV and caravan power management integration
- Off-grid power system automation and control
- Custom Node-RED automation workflows on Victron GX platforms
Pairs well with:
- Victron Energy Cerbo GX or CCGX (host GX device)
- Victron Energy BMV battery monitors and SmartSolar MPPT controllers
- Victron VE.Bus and VE.Direct connected inverters and chargers
- Node-RED automation flows for GX platform (Victron's community resources)
Frequently Asked Questions
Which Victron GX devices is the IO-Extender 150 compatible with?
The IO-Extender 150 is designed for integration with Victron GX devices including the Cerbo GX, CCGX, and Venus GX. Confirm compatibility with your specific GX model via the Victron Parts Checker or by contacting your authorised Victron reseller before purchasing.
How is the IO-Extender 150 powered?
The unit is USB bus-powered — it draws its operating power directly from a USB port on the connected Victron GX device. No separate power supply is required.
Can I use Node-RED to automate control of the IO-Extender channels?
Yes. The IO-Extender 150 is fully compatible with Node-RED automation running on the Victron GX platform, enabling custom logic flows, scheduled outputs, and conditional responses based on I/O states — without requiring additional hardware.
What is the 4A maximum load current, and does it apply per channel or across all 8 channels?
The supplier specifies 4A as the maximum load current. It is not confirmed whether this is a per-channel limit or a total combined limit across all output channels. Confirm the per-channel and total current distribution with Victron before designing a multi-output installation.
What does a 70V DC maximum battery voltage mean for my system?
70V DC covers 12V, 24V, and 48V battery system configurations — the full range of standard Victron Energy power system voltage levels. It does not extend to higher-voltage battery strings beyond 70V DC.












