The Keysight DAQM903A is a 20-channel actuator and general-purpose switch module engineered for integration with Keysight DAQ970A and DAQ973A data acquisition mainframes. It provides 20 independent SPDT latching relays (Form C) for power cycling, indicator control, and actuation of external loads. The module switches up to 300 V at 1 A with a maximum capacity of 50 W per contact, making it suitable for power-line switching applications across diverse test scenarios.
– Technical Specifications
• Channels: 20 independent SPDT latching relays (Form C)
• Maximum Switching Voltage: 300 V
• Maximum Switching Current: 1 A
• Maximum Switching Capacity: 50 W per contact
• Scan Rate: 120 channels/second
• Contact Configuration: Normally-Open, Normally-Closed, and Common terminals
• Operating Temperature: 0 °C to +55 °C
• Connection: Screw terminals
• Dimensions: 400 × 155 × 100 mm
• Weight: 687 g (including package)
• Transient Voltage Limit: 1500 Vpk (referenced to earth)
• RoHS Compliant: Yes
– Key Features
• Form C latching relays enable versatile switching configurations
• Multiple channels can be closed simultaneously for parallel control
• Screw terminal connectivity provides direct access to all relay contacts
• Non-scanning module architecture allows alarm-triggered control from scanning modules
• Plug-in module design integrates with compatible mainframes
– Typical Applications
• Power cycling of products under test
• Control of indicator and status lighting systems
• Actuation of external power relays and solenoids
• Multi-channel switching systems combined with matrix and multiplexer modules
– Compatibility & Integration
Designed specifically for Keysight DAQ970A and DAQ973A mainframes. Operates independently of the internal DMM function. Compatible with other plug-in modules for expanded switching configurations.
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