Overview
The Vulcan 1C2C9 is a rugged, self-contained mechanical thermostat designed for direct insertion temperature measurement and control in industrial and food service applications. The Vulcan Cal-Stat has been a reliable temperature control for over 35 years. This model features a pipe-thread 3/8″ NPT mounting with corrosion-resistant 304 stainless steel outer shell, providing durability in harsh environments.
Key Features
- Wide Control Range: -100 Degrees to 600 Degrees F adjustable set point
- Close-on-Rise Operation: Contacts close when temperature rises above set point
- Pipe-Thread Cartridge Design: 1/2 in sheath diameter, Overall Length 3 1/4 in, Insertion Depth 2 in, Thread NPT 3/8 In.-18
- Stainless Steel Construction: Rugged, self contained Cal-stats provide design and application versatility; units can be inserted into drilled holes or directly immersed into fluids or gases
- Single-Stage Control: SPST switch type for simple on/off operation
- Mechanical Operation: No external power required for temperature sensing
Technical Specifications
- Control Range: -100°F to 600°F (-73°C to 316°C)
- Differential: ±1/2°F
- Switch Type: SPST (Single Pole, Single Throw)
- Contact Rating @ 120VAC: 5 A resistive
- Contact Rating @ 240VAC: 3 A resistive
- Contact Rating @ 120VDC: 1 A
- Voltage Rating: 120/240VAC, 120VDC
- Sheath Diameter: 1/2″
- Overall Length: 3-1/4″
- Insertion Depth: 2″
- Thread Type: 3/8″ NPT (Pipe Thread)
- Material: Type 304 Stainless Steel
- Certifications: UL, CSA
Typical Applications
The Vulcan 1C2C9 is commonly used for:
- Commercial fryer temperature control and safety shutdown
- Industrial heating and cooling system cutoffs
- Food service equipment temperature monitoring
- Process heating applications requiring freeze protection
- Direct-immersion temperature sensing in tanks and vessels
- Replacement units in existing Vulcan thermostat installations
Compatibility & Replacements
Compatible With
- Vulcan Electric control systems and industrial heating equipment
- Standard 3/8″ NPT-threaded insertion ports in tanks and vessels
- 120VAC, 240VAC, and 120VDC electrical systems
- Relay coils and contactor holding coils for indirect load control
- Legacy food service equipment designed for Cal-Stat thermostats
Replaces / Drop-In Replacement For
- Vulcan 1C2C9 (exact replacement unit)
- Original equipment manufacturer Cal-Stat models with identical 3/8″ NPT threading and 2″ insertion depth
- Verify compatibility with your system integrator before ordering to confirm thread type and insertion dimensions match your installation.
Works With
- Direct-wire thermal cutoff and safety applications requiring manual reset
- Contactor circuits and auxiliary relay applications
- Capacitor-dampened circuits to reduce contact bounce and system vibration effects
- Motor starters and pump control circuits rated for SPST switching
