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1-channel AC Digital Input and 4-channel Relay Output Lighting Control Module
~ NEW ~  
  • Cost-effective for lighting control
  • Power Relay Outputs
  • Isolated AC Digital Input
  • -40°C ~ +80°C Temperature Detector
  • Support DCON and Modbus RTU Protocol
  • 7 Kinds DI DO coordinated functions
Model: SC-4104-W1
The SC-4104-W1 is an easy-to-use lighting control module that requires no specialist skills to install and operate, and no software is needed in order to control the DO channels.

The SC-4104-W1 provides 1 channel for digital input (photo couple isolation) and 4 channels for relay output. 1 of the 4 output channels is form C type relay and the others are form A type relay, while the input channel is based on a sink-type using a wire connection. The input channel can directly control a 4-channel relay ON and OFF sequence without requiring a remote host controller. And the SC-4104-W1 support 7 kinds coordinated function for users select. In addition to there is one channel temperature sensor can detect -40℃ ~ +80℃ and it can be read by DCON and Modbus RTU communication protocol to control small fan control unit. SC-4104-W1 has ±4 kV ESD protection for each terminal and 5000 Vrms intra-module isolation for DI. And the Shell is using fireproof materials. These high protection designed allows users more at ease.

When required, communication with the SC-4104-W1 is programmable based on the DCON and Modbus RTU protocol, and an added benefit is that different addresses can be set for DCON and Modbus RTU communication via hardware configuration.

Do not use the SC-4104-W1 to connect to any device where the loading is greater than 160 W (1.4 A, 110 V) per channel, as this may cause the module to malfunction.

ICP DAS cannot be held responsible for any damage or injuries that may result from inappropriate usage and any such usage may cause your warranty to be voided.
Digital Input
Input Channels 1
Type 90 ~ 240 VAC
On Voltage Level 85 VAC
Off Voltage Level 60 VAC
Input Impedance 68 KΩ, 1 W
Isolation 5000 Vrms
Function Local and remote direct control relay ON/OFF and remote status monitoring.
Digital Output
Output Channels 4
Type Power Relay, 1 Form C, 3 Form A
Operating Voltage 250 VAC or 30 VDC
(VDC: 0.4 W for Form C, 0.2 W for Form A)
Max. Load Current 7 A (NO)/5 A (NC) @ 250 VAC (Recommend Working Current 1 A)
Operating Time Form C: 10 ms Max.
Form A: 10 ms Max.
Release Time Form C: 5 ms Max.
Form A: 10 ms Max.
Electrical Life (900 ops/hr) Form C: 100,000 ops
Form A: 100,000 ops
Mechanical Life (1800 ops/hr) Form C: 10,000,000 ops
Form A: 5,000,000 ops
Power-on Value Yes
Temperature Sensor
Temperature Channel 1
Type Thermistor
Operating Temperature Range -40°C ~ +80°C
Temperature Tolerance ±0.3°C at 25°C, Max. ±1°C
Interface RS-485
Data Format N,8,1 / O,8,1 / E,8,1 / N,8,2
Baud Rate Hardware Configuration: Fixed 9600 bps
Software Configuration: 1200 ~ 115200 bps
Protocol Modbus RTU or DCON
Node Addresses 128 ~ 159 for hardware configuration
0 ~ 255 for software configuration
* For Modbus RTU, address 0 is auto become to 1
Connector RJ-11(6P4C or 6P6C)/4-pin screw terminal
LED Display
Power 1 LED as Power Indicator
Digital Output 4 LED as digital output indicator
EMS Protection
ESD ±4 kV contact for each terminal
EFT ±1 kV for power and communication
Power Requirements
Input Voltage Range +10 ~ +30 VDC
Consumption 2.4 W Max.
Connector RJ-11 (6P4C or 6P6C) / 4-pin screw terminal
Dimensions (W x L x H) 72 mm x 100 mm x 59 mm
Installation DIN-Rail
Operating Temperature -25°C ~ +75°C
Storage Temperature -30°C ~ +80°C
Humidity 10 to 90% RH, Non-condensing
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