NI SCC-RLY01 1-Channel Relay Module

The NI SCC-RLY01 is a single-channel relay module for NI SCC carrier integration, delivering digital switching control in measurement and automation systems. It houses one SPDT non-latching relay capable of switching 5 A at 30 VDC or 250 VAC (SCC-68 carrier) or 5 A at 30 VDC/30 VAC (SC-2345/SC-2350 carriers). Control is managed digitally via I/O P0 lines 0–7 using positive logic: high input sets the relay, low input resets it.

– Technical Specifications

• Relay Configuration: Single-pole, double-throw (SPDT), non-latching
• Switching Capacity: 5 A at 30 VDC; 5 A at 250 VAC (SCC-68); 5 A at 30 VAC (SC-2345/SC-2350)
• Contact Resistance: 30 mΩ maximum
• Signal Bandwidth: DC to 400 Hz
• Power Consumption: 60 mA maximum at +5 V; 300 mW maximum (digital power)
• Operation Time (NC to NO): 5 ms typical, 10 ms maximum
• Release Time (NO to NC): 4 ms
• Maximum Operating Speed: 30 cycles per second at rated load
• Contact Lifetime: 5 × 10⁷ operations at 180 cpm minimum
• Operating Temperature Range: 0 to 50 °C
• Storage Temperature Range: -20 to 65 °C
• Physical Dimensions: 3.55 cm W × 7.93 cm L × 1.87 cm H
• Weight: 37 g
• Field Wiring: 28 to 16 AWG

– Key Features

• Single 20-pin right-angle male connector and 3-pin screw-terminal block
• Low contact resistance ensures minimal voltage drop across switching contacts
• Positive logic control with direct digital integration
• Fast switching response suitable for real-time control applications
• High contact life rating supports extended industrial deployment

– Typical Applications

• Automated test equipment requiring discrete relay switching
• Industrial process control systems with digital I/O triggering
• Equipment interconnection and signal routing in DAQ systems
• Load switching in AC and DC measurement circuits

– Compatibility & Integration

The SCC-RLY01 integrates with National Instruments E/M Series DAQ devices through compatible SCC carriers: SCC-68, SC-2345, or SC-2350. Installation follows carrier architecture—SC-2345 slots (J(X+9), X = 0–7) or SCC-68 P0.0–P0.3 positions. Requires multifunction I/O module and appropriate carrier cable.