CSDSC-C45050L0 Johnson Controls Current Switch

Overview

The Johnson Controls CSDSC-C45050L0 is a self-calibrating, clamp-style current switch designed to provide reliable verification of electrical equipment operation, such as fans and pumps, in commercial and industrial HVAC applications. It features a split-core (clamp) design that allows for straightforward, non-invasive installation around existing conductors without interrupting the electrical circuit or requiring live panel calibration.

Features

• Self-calibrating design utilizing a single-turn dial to preset motor full load amps, eliminating the need for live calibration and personal protective equipment (PPE) during setup.
• Clamp-on (split-core) form factor for easy installation around existing wiring without disconnecting the circuit.
• LED status indicators providing clear local visual verification of the switch status (high, low, power).
• Induced power mechanism that draws operational energy directly from the monitored conductor cable, eliminating the need for an external power supply.

Specifications

• Amperage Range: 0.45 A minimum trip setpoint value up to a maximum current capacity of 50 A.
• Status Output: Normally Open (N.O.) solid-state switch.
• Switch Load Capacity: 1.0 A at 30 VAC/VDC.
• Aperture Size: 0.75 x 0.75 inches (19.1 x 19.1 mm).
• Status Output Wire Size: 14 to 24 AWG.
• Operating Temperature Range: 5 to 140°F (-15 to 60°C).
• Isolation Voltage: 600 VAC rms (UL listed), 300 VAC rms (CE compliant).

Applications

• Monitoring on/off status and proof of operation for small current loads on motors driving fans, blowers, and pumps.
• Integration into building automation systems (BAS) and energy management platforms for load verification.
• Monitoring electrical heating coils and lighting circuits in commercial facilities.