Product Overview
The NWZC-SCR is a zero-cross fired SCR gate driver board designed for driving back-to-back SCRs in resistive load applications. It offers an economical solution for high-current solid-state relays when paired with appropriate SCRs.
Key Features
- Direct SCR Gate driver, no external power supply required
- Low noise zero cross firing
- Suitable for resistive loads
- Interfaces with standard PLCs and temperature controllers
- Supports 50 or 60Hz operation
- Available for single-phase and three-phase control
- Includes MOV protection
- Multiple input voltage options: 5V, 24V, and 120V
Specifications
Input Specifications
- Input Trigger Current: 10mA for 5V, 24V, or 120VAC inputs
- Frequency Range: 47-63Hz
- Response Time: <1mS for 5V input, 100mS for 24V and 120V inputs
Output Specifications
- SCR Gate Drive Current: 200mA Max
- Critical rate of rise of OFF-state voltage: 600V/uS min, 1500V/uS typ.
- Max Instantaneous Peak Voltage: 1000Vpeak
Thermal Specifications
- Operating Temperature Range: 0 to 50 degC
- Storage Temperature Range: -40 to 100 degC
Safety Information
Users are responsible for determining the suitability of this component for their specific application. The system incorporating this component should be tested to applicable standards such as UL, CUL, and CE.
WARNING: FIRE HAZARD!! Electronic components can fail, potentially keeping full power ON. A separate, redundant over-temperature shutdown device is recommended to switch off power if safe temperatures are exceeded.
WARNING: HIGH VOLTAGE!! This control board operates at high voltages that can cause death. Installation must be performed by a qualified electrician in a grounded enclosure, adhering to applicable local and national codes, including NEC. Implement a safety interlock on the enclosure door to remove power before accessing the device.
Ordering Information
The NWZC-SCR can be ordered with various configurations for line voltage and input options. Refer to the ordering codes for specific selections.
