MTL5511 NAMUR Proximity Detector Interface 24V 25mA

The MTLx511 enables a safe-area load to be controlled by a switch or proximity detector located in a hazardous-area. When selected, open or short circuit conditions in the field wiring are detected by the line-fault-detect (LFD) facility and also indicated on the top of the module. Phase reversal for the channel is selected by a switch on the side of the module and output is provided by changeover relay contacts.

• Location of switches: Zone 0, IIC, T6 hazardous area; Div. 1, Group A hazardous location
• Location of proximity detector: Zone 0, IIC, T4-6 hazardous area if suitably certified; Div. 1, Group A hazardous location
• Hazardous-area inputs: Conform to BS EN60947-5-6:2001 standards for proximity detectors (NAMUR)
• Voltage applied to sensor: 7 to 9V dc from 1kΩ ±10%
• Input/output characteristics: Normal phase operation with specific current thresholds
• Line fault detection (LFD): User-selectable via switches with clear LED indication
• Safe-area output: Single pole relay with changeover contacts (reactive loads must be suppressed)