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Siemens SIMATIC 6MT11-A05L

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6MT11-A05L

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The Siemens 6MT11-A05L is an AC digital input module designed for discrete input applications. It features eight digital inputs with a nominal input voltage of 120 volts AC, suitable for various standard field devices.

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Technical specifications for 6MT11-A05L

ManufacturerSiemens
Product TypeAC Digital Input Module (Discrete Input)
Product LineSIMATIC
Part Number6MT11-A05L
Weight0.44 lbs (0.20 kg)
SeriesI/O Modules
Number of Inputs8 Digital Inputs
Nominal Input Voltage120 volts AC class
Operating Voltage Range85 volts AC to 132 volts AC
Input ON CurrentTypically 8 milliamps at 120 volts AC
Input DelayGenerally 15 ms to 25 ms (used for noise immunity on AC signals)
IsolationInputs are isolated from the logic and backplane
Status IndicatorsIncludes LEDs for each input channel to indicate the ON state
TerminationUses a removable terminal block (20 pins type)
ApplicationUsed to sense the ON/OFF status of standard 120VAC field devices like limit switches, push buttons, and solenoids
Maximum Operating Altitude Without Derating1000m above sea level
Maximum Operating Humidity Level80% RH (non-condensing)
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Siemens' 6MT11-A05L module serves as an AC digital input device, intended primarily for discrete input functions. It encompasses eight inputs that can efficiently handle the ON/OFF states of standard 120VAC equipment, such as limit switches and push buttons. The module is rated for a nominal input voltage of 120 volts AC but can operate within a range of 85 to 132 volts AC.

Current levels during the ON state are typically at 8 milliamps at the nominal voltage. To mitigate signal noise, the module features an input delay of approximately 15 to 25 milliseconds, ensuring better performance in environments with fluctuating electrical conditions. Each input is independently isolated from the logic circuits and the backplane, which contributes to stable operation and minimizes interference.

For user convenience, the module includes LED indicators corresponding to each input channel to clearly display the ON states. The terminations are achieved through a removable 20-pin terminal block, allowing for straightforward connections. With a permissible operating altitude of up to 1000 meters above sea level, the 6MT11-A05L is suitable for various industrial applications. Environmental limitations include a maximum humidity level of 80% relative humidity, avoiding risks associated with condensation.