Floating Interlock and Relay contacts
The Isolated Contacts Interface card enhances safety and control in the SM15K and SM3300 series power supplies by adding floating interlock or 24 V enable functionality. This ensures a secure setup while allowing seamless integration with external systems.
The interface also includes four programmable relays, which can be controlled via Ethernet commands or linked to internal status messages of the power supply. This flexibility allows for a variety of automation and safety applications. For example, the interlock can be connected to a cabinet door as a safety mechanism, while a relay contact could switch on a hazard light when necessary.
This pluggable interface card can be installed at any time for an effortless upgrade. For detailed specifications, refer to the data sheets below.
Features
- Programmable via Ethernet
- Isolated from the output voltage, working voltage 1000 VDC
- Floating relative to earth
- Easy to plug in by user on site
- For SM3300 and SM15K series only, multiple INT MOD CON per unit allowed
- Installation in all slots possible
- Combination with all other interfaces for SM3300 or SM15K series possible
Functionalities
- Additional (floating) interlock or 24 V enable system
- Four make-or-break relays
Specifications
- Relay contact voltage and current: 60 V / 2 A
- Floating interlock: 5 V (open circuit)
- Nominal input voltage: 24 VDC
- Insulation programming connector - internal circuits: 1000 VDC
- Operating temperature: -20 to +50 ÂșC
Standards
- Safety: EN 60950 / EN 61010
Dimensions and weight
- Width: 25 mm
- Height: 77 mm
- Depth: 77 mm
- Weight: 80 gr


Support items
Downloads
Data sheets | Type/Format | Size |
---|---|---|
Data sheet Interfaces SM3300 series | 373.84 KB | |
Data sheet Interfaces SM15K series | 356.58 KB |
Manuals | Type/Format | Size |
---|---|---|
Manual Interfaces SM3300 series | 1.07 MB | |
Manual Interfaces SM15K series | 1.09 MB |