Why Choose the IMO SMT-MA-R8 iSmart I/O Expansion Module?
The IMO SMT-MA-R8 is an AC digital I/O expansion module for IMO iSmart intelligent relays, designed to increase the number of field inputs and relay outputs available to a compatible iSmart base controller. It provides 4 AC digital inputs and 4 relay outputs, adding eight I/O points without requiring a separate programmable controller.
Designed for 100–240 V AC operation, the SMT-MA-R8 is particularly suited to control systems using mains-voltage AC input signals. Its four relay outputs are rated at up to 8 A resistive and 2 A inductive, allowing the module to interface with a wide variety of suitable industrial control loads.
The SMT-MA-R8 forms part of the IMO iSmart expansion range and is intended to operate alongside a compatible iSmart base unit rather than as a standalone controller. Up to 3 SMT-MA-R8 modules per compatible base unit can be used, providing a straightforward way to expand digital I/O capacity as an automation system develops.
Key Advantages
- Adds 4 AC digital inputs and 4 relay outputs to compatible IMO iSmart controllers.
- 100–240 V AC supply suits mains-powered industrial control systems.
- 8 A resistive relay outputs provide versatile switching capability.
- Relay outputs are suitable for both AC and DC control loads within their specified contact ratings.
- Provides eight additional digital I/O points in a compact expansion module.
- Allows existing iSmart installations to be expanded without replacing the base controller.
- Up to 3 SMT-MA-R8 modules can be used with a compatible base unit.
- Ideal for machinery, building services and OEM control panels requiring additional AC I/O.
Key Features
- IMO iSmart digital I/O expansion module.
- 100–240 V AC operating supply.
- 4 AC digital inputs.
- 4 relay outputs.
- 8 A resistive relay output rating.
- 2 A inductive relay output rating.
- No analogue inputs or outputs.
- Designed for use with compatible IMO iSmart intelligent relay base units.
- Maximum of 3 SMT-MA-R8 modules per compatible base unit.
- IP20 protection rating.
- Compact control-panel expansion solution.
Expanding an IMO iSmart Control System
The IMO SMT-MA-R8 allows an existing iSmart control system to accommodate additional field devices without moving to a larger standalone PLC. Its 4 AC digital inputs can be used for compatible switches, contacts and other AC control signals, while its four relay outputs provide isolated switching for suitable contactors, indicators, solenoids and other control loads.
Because the module is an expansion device, control logic remains within the connected iSmart base unit. The SMT-MA-R8 simply extends the controller's physical I/O capacity, making it particularly useful when a machine or panel requires additional signals during initial design or as part of a later upgrade. Up to three SMT-MA-R8 modules can be fitted to a compatible base unit where the system configuration permits.
Typical Applications
- Expansion of IMO iSmart intelligent relay systems.
- Industrial machine automation.
- Pump, fan and motor control panels.
- Conveyor and material handling equipment.
- HVAC and building automation.
- Packaging and production machinery.
- Additional AC switch and sensor inputs.
- OEM machinery and electrical control panels.
