MTL5511

Description

MTL5511 is a switch/proximity detector interface designed for safe connection between field devices in hazardous areas and control systems in safe zones.

Specifications

• Channels: 1

• Input Type: NAMUR proximity detectors (BS EN60947–5–6:2001)

• Sensor Voltage: 7–9 VDC via 1 kΩ ±10%

• Normal Operation: Output closed at >2.1 mA (<2 kΩ); open at <1.2 mA (>10 kΩ)

• Hysteresis: 200 µA nominal (650 Ω)

Hazardous Area Ratings

• Switch Location: Zone 0, IIC, T6 / Div. 1, Group A

• Detector Location: Zone 0, IIC, T4–T6 / Div. 1, Group A

Line Fault Detection

• Selection: Switch-configurable

• Open-Circuit Alarm: On <50 µA, off >250 µA

• Short-Circuit Alarm: On <100 Ω, off >360 Ω

• Indication: LED alert and de-energized output relay on fault

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