Atom Switch-D is a dual-channel relay power control switch specifically designed for ATOM controllers. The "D" stands for "Directly," indicating that the Switch-D adopts a design where the power input is directly connected to the relays. The AC power flows directly to the NO (Normally Open) contacts of the two relays, which are controlled by the ATOM for switching. When using this module, users only need to connect the electrical load to the relay without the need for additional power wiring. Compared to previous relay control solutions, this module offers a more concise and efficient way to control electrical loads.
In addition to powering the relay loads, the input power also passes through a built-in step-down module to provide a 5V/1A DC power supply for the ATOM. To ensure safety, the power input circuit is equipped with overheat and short-circuit protection, effectively disconnecting the circuit in case of excessive current or short-circuit to prevent component damage. The module features an SP485EE level conversion chip, providing an RS485 communication interface that supports multi-device communication. It also integrates a 9-24V to 5V step-down circuit to meet the power requirements in industrial scenarios, expanding the power supply capability. A HY2.0-4P interface is provided for connecting I2C peripherals or general-purpose I/O devices. Combined with the built-in WiFi functionality of the ATOM, Atom Switch-D can quickly set up remote device switching applications.
Features
Compatible with Atom-Matrix/Atom-Lite
Built-in AC-DC power supply circuit
2-channel relay
Built-in RS485 level conversion, supports Modbus
HY2.0-4P expansion interface
Short-circuit and overheat protection
Controllable via WiFi and RS485
Includes
1 x Atom-Lite
1 x Atom Switch-D
4 x Strong magnets
1 x Double-sided tape
1 x Rail clamp
1 x VH3.96-4P terminal
3 x 3.96 x 2P male headers
1 x M4 hex key
1 x M2 hex key
2 x M4*10mm hex socket head screws
1 x M2*20mm hex socket head machine screw
Applications
Smart switches
Specifications
Specification
Parameters
Relay parameters
AC 250V/5A
Switch power (AC-DC)
AC 110 ~ 250V -> DC 5V
RS485 supply voltage
DC 9 ~ 24V
Interfaces
1 x HY2.0-4P (PORT.A), 1 x VH3.96-4P (RS485), 2 x VH3.96-2P (Relay), 1 x VH3.96-2P (AC/DC IN)
Housing material
Plastic (PC)
Product dimensions
72 x 40 x 30mm
Product weight
134g
Package dimensions
104 x 77 x 35mm
Gross weight
158g
Learn
The kit includes a rail mounting fixture. Please refer to the following images for installation:
