Description
The Johnson Controls CSD-SA1E1-1 is a solid core, adjustable-setpoint current switch engineered for reliable over/under current sensing in commercial and industrial HVAC applications. Its compact, robust design allows easy installation around existing conductors without breaking the circuit, making it an ideal solution for monitoring motor loads, fan operation, pump status, and other current-carrying equipment.
Key Features
- Solid core construction for secure, interference-free current sensing
- Adjustable setpoint threshold for flexible application tuning
- Dual LED display indicates both switch status and relay output state at a glance
- Over and under current sensing capability for comprehensive load monitoring
- 24 V SPST normally open (N/O) output relay for direct control or signaling
- 20–30 Vac/Vdc actuation coil accommodates standard HVAC control voltages
- Operating temperature range: 5°F to 140°F for broad environmental compatibility
- Humidity rating: 0–95% RH (non-condensing)
Electrical Specifications
- Output Relay Type: SPST Normally Open
- Relay Output Voltage: 24 V
- Actuation Coil Voltage: 20–30 Vac/Vdc
Environmental Specifications
- Operating Temperature: 5°F to 140°F
- Relative Humidity: 0–95% (non-condensing)
Applications
- Motor run verification for fans, pumps, and compressors
- Proof-of-flow detection in air handling and hydronic systems
- Over/under current fault detection and alarming
- Building automation and energy management system integration
The CSD-SA1E1-1 is backed by Johnson Controls’ reputation for precision sensing and control, making it a trusted choice for HVAC technicians and building automation professionals who demand accuracy and long-term reliability.
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