MTL Instrument MTL4516C Switch/ Proximity Detector Interface

Description

The MTL4516C is a two-channel switch/proximity detector interface from Eaton’s MTL 4500 series. It enables safe-area loads to be controlled by mechanical switches or NAMUR proximity detectors located in hazardous areas. Compact and reliable, it provides galvanic isolation and advanced diagnostics for process safety applications.

Specifications

• Model: MTL4516C

• Manufacturer: Eaton MTL Instruments

• Type: 2-channel switch/proximity detector interface

• Input Devices: Mechanical switches, NAMUR proximity detectors (BS EN60947-5-6:2001 compliant)

• Channels: Two independent channels

• Voltage Applied to Sensor: 7–9 V DC from 1 kΩ ±10%

• Input Thresholds:

  • Normal phase: Output closed if input > 2.1 mA (<2 kΩ in input circuit)

  • Inverse phase: Output closed if input < 1.2 mA (>10 kΩ in input circuit)

• Line Fault Detection (LFD): Detects open or short circuit conditions in field wiring

• Outputs: Changeover relay contacts per channel

• Mounting: DIN rail or backplane system

• Certifications: ATEX, IECEx, FM, CSA for hazardous area use

• Functional Safety: IEC 61508:2010 compliant, suitable for Zone 0, IIC, T6 hazardous areas

• Weight: ~1 kg shipping weight

Features

• Dual Channel Interface: Supports two independent switch or proximity detector inputs.

• Line Fault Detection: Identifies open or short circuits in hazardous-area wiring.

• Phase Reversal: Selectable per channel via side switch for flexible configuration.

• Safe Signal Transmission: Provides galvanic isolation between hazardous and safe areas.

• Relay Outputs: Robust changeover relay contacts for reliable control.

• Compact Design: Slim DIN rail mounting saves panel space.

• Global Approvals: Certified for use in hazardous areas worldwide.

• Applications: Oil & gas, chemical plants, power generation, and industrial automation.