CSDSC-C50150L1 Johnson Controls Current Switch

Overview

The Johnson Controls CSDSC-C50150L1 is a self-calibrating, clamp-on current switch device designed to provide reliable verification of electrical equipment operation, such as fans and pumps. It features an adjustable setpoint and an integrated normally open (N.O.) relay output, allowing it to signal when monitored AC current exceeds a selected threshold. By drawing power directly from the monitored line, it functions as a self-powered, nonintrusive solution for HVAC and building automation systems.

Features

• Self-Calibrating Single-Turn Dial: Allows operators to select motor full load amps easily, eliminating the need for live calibration and reducing installation time.
• De-Energized Installation: Can be preset while the panel is de-energized, removing the requirement for personal protective equipment (PPE) during setup.
• Clamp-On/Split-Core Design: Simplifies deployment by snapping directly around existing wiring without disconnecting conductors.
• Integrated Output Relay: Provides a normally open (N.O.) contact rated for 10 A at 125 VAC with a 24 V actuation coil.
• Switch Status LEDs: Features built-in high, low, and power LED indicators to visually check the operational status of the switch.
• Polarity Insensitive Output: Simplifies field wiring tasks.

Specifications

• Model Part Number: CSDSC-C50150L1
• Current Sensing Range: 0.50 to 150 A (Adjustable setpoint)
• Maximum Current Rating: 150 A
• Minimum Trip Setpoint Value: 0.50 A
• Status Output Rating: Normally Open (N.O.), 1.0 A at 30 VAC/VDC
• Relay Contact Rating: 10 A at 125 VAC (24 V Coil, 15 mA)
• Isolation Voltage: 600 VAC rms (UL listed), 300 VAC rms (CE certified)
• Frequency Range: 50/60 Hz
• Temperature Range: 5 to 140°F (-15 to 60°C)
• Humidity Range: 0 to 95% noncondensing
• Wire Gauge Compatibility: 14 to 24 AWG

Applications

• Proof of Flow / Status Monitoring: Extensively used to verify the true run status of motors driving commercial HVAC fans, blowers, and pumps.
• Interlocking Control Systems: Integrates into building automation systems (BAS) to trigger secondary equipment or safety controls based on active load status.
• Electrical Sub-Panel Monitoring: Ideal for monitoring large commercial and industrial electrical loads where physical space in tight enclosures necessitates a clamp-on design.
• Lighting and Heating Loads: Suitable for detecting the status of heating coils and lighting circuits to aid in energy management strategies.