Passive Zener MTL Safety Barrier MTL7789 Blue Two Channel 10mA in stock
For switching inputs with input currents <10mA per channel, the MTL Zener Safety Barrier MTL7789+ provides a two-channel passive Zener barrier.
All MTL7700 series Zener barriers are designed according to the same design principles. Each channel consists of a secondary pulse detecting Zener or forward connecting diode and a "reliable" terminating resistor. In the event of an electrical fault in the safety zone, the diode limits the voltage that can reach the hazardous area, while the resistor has a current limiting effect. A fuse protects the diode, and a two-stage voltage limiting function ensures continuous protection in the event of a failure in either stage. No active output current limiting circuitry is used. All models are certified "ia" - for all zones and "IIC" - for all explosive atmospheres (except MTL7707P+ and MTL7729P+, "ia" "IIB").
| Type | Application | Main safety barriers |
|---|---|---|
| Analog input (low level) | RTD temperature detector, thermocouple, AC sensor | MTL7756ac, MTL7755ac, MTL7760ac |
| Analog input (high level) | Transmitter, 2-wire, 4/20mA | MTL7706+, MTL7787+, MTL7787P+, MTL7788+ |
| Analog Output | Controller output, single wire to ground Controller output, neither wire grounded |
MTL7728+, MTL7787+, MTL7787P+ |
| Digital (switch) input | Switch/proximity switch | MTL7787+, MTL7787P+, MTL7789+, MTL7741, MTL7742, MTL7743, MTL7744, MTL7745 |
| Digital (Switching) Outputs | Solenoids, Alarms, Light Emitting Diodes | MTL7728+, MTL7707+, MTL7728P+, MTL7729P+, MTL7787+, MTL7787P+ |
| Positive DC Systems | Low Voltage to 12V DC Systems 18V DC Systems |
MTL7764+, MTL7767+, MTL7722+ |
| AC and DC Systems | High Voltage AC and DC Systems | MTL7765ac, MTL7778ac |
| Negative/Floating Power Supply Digital (Switching) Outputs | MTL7728- Spare Cord and Shield - MTL7799 Bus Power Usage - MTL7799 |
MTL7706, MTL7707+, MTL7707P+, MTL7741, MTL7742, MTL7743, MTL7744, MTL7745, MTL7787+, MTL7787P+, MTL7788+, MTL7789+ |
| Manufacturer | MTL Instruments |
|---|---|
| Product type | Vibration Transducer Interface |
| Product no | MTL7789+ |
- Best possible prices and delivery time
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Transmitter, Safety barries, Flow meters, Probe, Sensor, Transducer. Valves,Analysis meter, Positioner, Acuator, etc.
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