Overview
The Mercoid DA-7035-153-4N temperature switch is part of the Dwyer DA-7035N series, a proven line of industrial temperature control devices. This snap-action switch provides accurate temperature monitoring and reliable switching for HVAC, process control, and equipment protection applications. The DA-7035-153-4N delivers consistent performance in demanding industrial environments where precise temperature regulation is critical.
Key Features
- Snap-action switch mechanism for reliable on/off control
- Adjustable deadband for flexible hysteresis control
- External adjustment dials for easy setpoint configuration
- Dual setpoint adjustment (high and low operating points)
- Mercury-free construction options available
- Visible on/off indication for status verification
- No cross-ambient temperature effects on accuracy
Technical Specifications
- Series: DA-7035N
- Switch Type: SPDT snap-action switch
- Temperature Range: 50–150°F (10–65°C)
- Process Connection: 3/4″ male NPT
- Adjustment Type: Dual external adjustment (high/low setpoints)
- Deadband: Adjustable over full scale
- Enclosure Rating: General purpose
- Switch Options: Snap-action, hermetically sealed, or mercury switch variants
- Repeatability: High sensitivity and repeatability
Typical Applications
- HVAC system temperature monitoring and control
- Refrigeration and cold storage process control
- Boiler and water heater temperature protection
- Industrial equipment thermal monitoring
- Process fluid temperature regulation
- Freeze protection systems
Compatibility & Replacements
Compatible With
- Standard 3/4″ NPT process connections
- General-purpose industrial HVAC and process control systems
- 24 VAC through 240 VAC electrical systems
- Standard building automation and equipment controllers
Replaces / Drop-In Replacement For
- Other DA-7035N series temperature switches with matching temperature range and NPT connection
- Legacy Mercoid temperature switch models within the DA-7035 family
Works With
- Standard electrical control circuits (120 VAC, 240 VAC, 24 VAC)
- HVAC equipment and process automation systems
- Building management systems with temperature monitoring inputs
