Description
The 155304A-03L is a C Series Digital I/O module, specifically the NI-9481 model. This unit is categorized as a SPST Electromechanical Relay Module and comes equipped with 4 channels. It is designed to be compatible with NI CompactDAQ or CompactRIO Chassis, showcasing a versatile application range.
One of the key specifications of this module is its ability to handle a maximum voltage of 30 VDC at 2 A, 60 VDC at 1 A, and 250 VAC at 2 A, providing a wide range of power handling capabilities for different types of electrical loads. The module has interchangeable terminals, labeled as CHa and CHb, which enhance its flexibility in connecting to various types of circuits.
An important feature of the NI-9481 is the presence of LED indicators. These indicators provide immediate visual feedback on the status of the channel, making it easier for technicians and engineers to monitor the system’s operation without the need for additional equipment.
This module is recommended for use with DC instruments, actuators, and motors, highlighting its utility in a broad spectrum of industrial and research applications. For achieving a secure connection, the use of 2-wire ferrules is recommended. Furthermore, to enhance vibration resistance, the application of ferrules or the NI-9932 backshell kit is advised, ensuring that the module’s performance remains stable and reliable under various operational conditions.
| Specification | Details |
|---|---|
| Part Number | 155304A-03L |
| Category | C Series Digital I/O |
| Model | NI-9481 |
| Type | SPST Electromechanical Relay Module |
| Channels | 4 |
| Compatibility | NI CompactDAQ or CompactRIO Chassis |
| Maximum Voltage | 30 VDC (2 A), 60 VDC (1 A), 250 VAC (2 A) |
| Terminal Type | Interchangeable, CHa and CHb |
| LED Indicators | Yes, shows the status of the channel |
| Recommended for | DC instruments, actuators, motors |
| Wire Termination Recommendation | 2-wire ferrules for secure connection |
| Vibration Resistance Enhancement | Use of ferrules or NI-9932 backshell kit |
Question 1: What is the part number of the NI-9481?
Answer 1: 155304A-03L
Question 2: How many channels does the NI-9481 have?
Answer 2: 4
Question 3: What is the max voltage the NI-9481 can handle?
Answer 3: 250 VAC at 2 A
Question 4: Does the NI-9481 have LED indicators?
Answer 4: Yes
Question 5: What is recommended to improve vibration resistance?
Answer 5: NI-9932 backshell kit



