SC3018 Digital Input Isolator (Four-Channel, Relay Output)
Four-channel digital input isolator: four dry contact/proximity switch inputs each isolated and converted to relay outputs, 17.8mm width high-density integration.
- Original Factory Genuine, Tenfold Compensation for Counterfeits
- Full Machine Warranty, Lifetime Maintenance
- In Stock, Shipped on the Same Day
Four-channel configuration, four dry contact or NAMUR proximity switch signals each isolated and converted to relay outputs. DIP switches can be used to set same-phase/inverted logic (default same-phase), line fault monitoring on or off (default on, LED flashes on line fault) and second output function. Requires independent power supply, three-terminal isolation of input, output and power supply.
Note:Three-terminal isolation of input, output and power supply. 24V DC independent power supply; four inputs (CH1~CH4) each connect to dry contact switches or NAMUR proximity switches; four outputs are all relay contacts. Module indicators: green power indicator, red fault signal, yellow channel status. All terminals are hot-swappable. Refer to the module side silkscreen for specific terminal numbers.
Ordering information:
- Requires independent power supply (18V DC~32V DC).
- DIP switch function settings must be confirmed before commissioning.
| 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 | Relay: <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 | 17.8mm×110mm×117mm (W×H×D) |
| DIP switch settings | |
| DIP switch | S1–S4: non-inverting/inverting logic, line fault monitoring switch, second output function |
- Four-channel four-in four-out, four isolated channels integrated in a single module
- All four outputs are relay contacts, permissible load 250VAC/2A or 30VDC/2A
- DIP switch settings for non-inverting/inverting logic and line fault monitoring
- Increases panel integration density where digital measurement points are densely packed
- Three-port isolation of input, output and power supply
- 17.8mm width, DIN rail mounting, hot-swappable terminals
High-density digital monitoring
For cabinets with limited space and densely packed digital measurement points, four isolated channels are integrated in a single module to increase panel integration density
Need selection advice or bulk quotation?
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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