Solid State Relay Unit - SSR-CU
SSR-CU provides possibility to control devices which use a standard electrical outlet. Low voltage microcontroller or other low voltage equipment can be used as a control device. The SSR-CU uses high-power solid-state relay and provides fully galvanically isolation of low voltage control signal from high voltage.
SSR-CU can be used to control power going to a device such as Sump Pump, Heaters or Lights. Any low voltage devices, Single Board Computer or microcontroller system with general purpose output interface can be used with SSR-CU.
SSR-CU is designed to provide safely control an outlet device that operates at 24 – 280Vrms. The SSR-CU provides connectivity between single input (from the included power cable) to two outputs: one always on, and one normally off.
The control signal is compatible with any devices which can provide 3V – 32VDC and optically isolated from power.
Two types of SSR-CU:
- SSR-CU_12A (12A maximum load)
- SSR-CU_6A (6A maximum load)
Two LEDs, located on front panel, indicate input power presence and relay "On" state.
Both SSR-CU devices use UPD2425 (zero voltage Turn-On) solid state relay. The UPD2425 is rated for 25A.
Output Specification:
Operating Temperature: 32°F – 90°F (0° – 32°C)
Operating Humidity: 0 – 85%, non-condensing
Maximum Steady State Current: 12A (SSR-CU), 6A (SSR-CU_6A)
Operating Voltage (47 – 440Hz): 24 – 280Vrms
Transient Overvoltage: 600V peak
Maximum 1 Cycle Surge Current (50/60Hz): 239A peak
Maximum On-State Voltage Drop: 1.4Vrms
Input Specifications:
Control Voltage: 3 – 32VDC
Minimum Turn on Voltage: 3VDC
Minimum Turn of Voltage: 1VDC
Input circuit active current limiter: 10mA maximum
Minimum Turn on Current: 3mA
