SC3011 switch input isolator (one in, one out, relay output)
Single-channel switch input isolator: dry contact/NAMUR proximity switch input, isolated and converted to relay output; three-port isolation, DIP switches configurable for same/inverted logic and line fault monitoring.
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- Full Machine Warranty, Lifetime Maintenance
- In Stock, Shipped on the Same Day
Switch input isolator, input dry contact or NAMUR proximity switch signal, isolated and converted to relay/transistor output. DIP switches can be used to set output and input same-phase or inverted logic control (default same-phase), set line fault monitoring on or off (default on, LED flashes on line fault), and set the second output function (as relay/transistor output or as fault alarm output). This product requires independent power supply, with three-port isolation of input, output and power.
Note:Three-port isolation of input, output and power. 24V DC independent power supply (note polarity of power terminals, module has power reverse protection); input side connects to dry contact switch or NAMUR proximity switch; output side is relay contact, can drive ≤40mA load, allowable load 250VAC/2A or 30VDC/2A. Module indicators: green power indicator, red fault signal, yellow channel status. When line fault monitoring is on, input disconnection (≤50μA) or short circuit (≥6.5mA) will cause the output relay to open and the red indicator to flash. All terminals are hot-swappable. Specific terminal numbers are subject to the silkscreen on the module side.
Ordering information:
- This product requires independent power supply (18V DC~32V DC), system power supply configuration must be confirmed when ordering.
- Output logic (same-phase/inverted), line fault monitoring, and second output function are set via DIP switches, default: same-phase, fault monitoring on.
| Parameter Name | Technical Specifications |
|---|---|
| Power supply and power consumption | |
| Power Supply | 18V DC ~32V DC power reverse protection |
| Power consumption | 1W |
| Input characteristics | |
| Input Signal | Dry contact or NAMUR proximity switch |
| Switching characteristics | Input current>2.1mA, output relay closed, channel indicator yellow steady on; input current<1.2mA, output relay open, channel indicator yellow off |
| Open-circuit voltage | Approx. 8.5V |
| Short-circuit current | Approx. 8.5mA |
| Line fault | Input current≤50μA, input wire break detected, output relay open; input current≥6.5mA, input short circuit detected, output relay open; channel indicator red flashing |
| Output and load | |
| Output Signal | Relay contacts |
| Permissible load | 250VAC/2A or 30VDC/2A |
| Drive current | ≤40mA |
| External voltage | <40V DC |
| Switching frequency | <20ms |
| Isolation and electromagnetic compatibility | |
| Electromagnetic compatibility | <10Hz |
| Dielectric strength | ≥1500V AC (between input/output/power supply) |
| Insulation resistance | ≥100MΩ (between input/output/power supply) |
| Environmental and Mechanical | |
| IP Protection | IP20 |
| Operating Temperature | -20℃～+60℃ |
| Storage Temperature | -40℃～+80℃ |
| Dimensions | 12.8mm×110mm×117mm (W×H×D) |
| DIP switch settings | |
| DIP switch | S1~S4 (module marked 51, 52, 53, 54): same-phase/inverted logic (default same-phase), line fault monitoring switch (default on), second output function (SC3012 is relay/transistor output or fault alarm output) |
- Dry contact or NAMUR proximity switch input, isolated and converted to relay contact output
- DIP switches set same-phase/inverted logic (default same-phase), line fault monitoring (default on, LED flashes on fault)
- Input disconnection (≤50μA)/short circuit (≥6.5mA) online monitoring, output opens and indicator flashes on fault
- Three-port isolation of input, output and power, forming a fully floating system, no grounding required
- Allowable load 250VAC/2A or 30VDC/2A, drive current ≤40mA
- DIN rail mounting, hot-swappable terminals, 12.8mm compact width
Dry contact signal isolated connection to DCS/PLC
Dry contact (passive contact) or NAMUR proximity switch signal connected to DCS/PLC switch input channel, relay normally-open contact also serves as fault alarm output, electrical isolation between field and control room
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Send us the working condition parameters (signal type, medium, range, pressure, temperature, connection method), and our engineers will provide a selection scheme and quotation within 1 working day.
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