Markel ET9STS Stat
The Markel ET9STS is a heavy-duty line voltage thermostat engineered specifically for high-capacity heat-only applications. Built with a single-pole single-throw (SPST) snap-action switch, this industrial heating control is rated for 22 Amps at 120-277V resistive loads, making it a reliable choice for direct connection to baseboard heaters, fan-forced unit heaters, and radiant heating elements. The bimetal actuator provides a consistent 2-degree Fahrenheit differential, ensuring precise temperature regulation within a standard setpoint range of 50°F to 90°F. Designed for efficiency, the Markel 120V thermostat features a compact surface-mount design with a built-in thermometer for real-time monitoring. For contractors managing commercial HVAC systems, the ET9STS provides a robust, no-frills solution that eliminates the complexities of low-voltage relays while maintaining high-current switching reliability in demanding environments. This wall-mounted thermostat is an essential component for technicians requiring dependable electric heater control and simple two-wire installation.
Key Benefits- High Current Capacity: Rated for up to 22 Amps resistive, allowing for direct control of high-wattage electric heating equipment without additional contactors.
- Precise Bi-Metal Control: Utilizes a snap-action bi-metal actuator for reliable performance and a tight 2°F operating differential.
- Integrated Monitoring: Includes a faceplate thermometer for immediate visual verification of ambient room temperature.
- Versatile Voltage Range: While optimized for 120V heating systems, the switch is rated to handle up to 277VAC for various field configurations.
- Rugged Construction: Focused on industrial longevity with a heavy-duty housing suitable for commercial HVAC and warehouse environments.
Is the Markel ET9STS compatible with cooling systems?
No, this specific model is a dedicated heating-only control. For HVAC applications requiring cooling or heat/cool changeover, a double-throw (SPDT) or dedicated cooling model from the ET series is required.
Does this thermostat require a neutral wire?
The ET9STS is a single-pole (SPST) device that breaks one side of the line. While a neutral is required for the overall circuit in 120V systems, the thermostat itself acts as a series switch for the hot leg of the power supply.
Can I use this for 240V baseboard heaters?
Yes, the electrical rating supports up to 277V. However, as an SPST switch, it will only break one "hot" leg of a 240V circuit; consult local codes if a double-pole (DPST) break is required for safety disconnect.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $43.33
-65%$43.33
$15.17Markel ET9STS Stat
The Markel ET9STS is a heavy-duty line voltage thermostat engineered specifically for high-capacity heat-only applications. Built with a single-pole single-throw (SPST) snap-action switch, this industrial heating control is rated for 22 Amps at 120-277V resistive loads, making it a reliable choice for direct connection to baseboard heaters, fan-forced unit heaters, and radiant heating elements. The bimetal actuator provides a consistent 2-degree Fahrenheit differential, ensuring precise temperature regulation within a standard setpoint range of 50°F to 90°F. Designed for efficiency, the Markel 120V thermostat features a compact surface-mount design with a built-in thermometer for real-time monitoring. For contractors managing commercial HVAC systems, the ET9STS provides a robust, no-frills solution that eliminates the complexities of low-voltage relays while maintaining high-current switching reliability in demanding environments. This wall-mounted thermostat is an essential component for technicians requiring dependable electric heater control and simple two-wire installation.
Key Benefits- High Current Capacity: Rated for up to 22 Amps resistive, allowing for direct control of high-wattage electric heating equipment without additional contactors.
- Precise Bi-Metal Control: Utilizes a snap-action bi-metal actuator for reliable performance and a tight 2°F operating differential.
- Integrated Monitoring: Includes a faceplate thermometer for immediate visual verification of ambient room temperature.
- Versatile Voltage Range: While optimized for 120V heating systems, the switch is rated to handle up to 277VAC for various field configurations.
- Rugged Construction: Focused on industrial longevity with a heavy-duty housing suitable for commercial HVAC and warehouse environments.
Is the Markel ET9STS compatible with cooling systems?
No, this specific model is a dedicated heating-only control. For HVAC applications requiring cooling or heat/cool changeover, a double-throw (SPDT) or dedicated cooling model from the ET series is required.
Does this thermostat require a neutral wire?
The ET9STS is a single-pole (SPST) device that breaks one side of the line. While a neutral is required for the overall circuit in 120V systems, the thermostat itself acts as a series switch for the hot leg of the power supply.
Can I use this for 240V baseboard heaters?
Yes, the electrical rating supports up to 277V. However, as an SPST switch, it will only break one "hot" leg of a 240V circuit; consult local codes if a double-pole (DPST) break is required for safety disconnect.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
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Description
The Markel ET9STS is a heavy-duty line voltage thermostat engineered specifically for high-capacity heat-only applications. Built with a single-pole single-throw (SPST) snap-action switch, this industrial heating control is rated for 22 Amps at 120-277V resistive loads, making it a reliable choice for direct connection to baseboard heaters, fan-forced unit heaters, and radiant heating elements. The bimetal actuator provides a consistent 2-degree Fahrenheit differential, ensuring precise temperature regulation within a standard setpoint range of 50°F to 90°F. Designed for efficiency, the Markel 120V thermostat features a compact surface-mount design with a built-in thermometer for real-time monitoring. For contractors managing commercial HVAC systems, the ET9STS provides a robust, no-frills solution that eliminates the complexities of low-voltage relays while maintaining high-current switching reliability in demanding environments. This wall-mounted thermostat is an essential component for technicians requiring dependable electric heater control and simple two-wire installation.
Key Benefits- High Current Capacity: Rated for up to 22 Amps resistive, allowing for direct control of high-wattage electric heating equipment without additional contactors.
- Precise Bi-Metal Control: Utilizes a snap-action bi-metal actuator for reliable performance and a tight 2°F operating differential.
- Integrated Monitoring: Includes a faceplate thermometer for immediate visual verification of ambient room temperature.
- Versatile Voltage Range: While optimized for 120V heating systems, the switch is rated to handle up to 277VAC for various field configurations.
- Rugged Construction: Focused on industrial longevity with a heavy-duty housing suitable for commercial HVAC and warehouse environments.
Is the Markel ET9STS compatible with cooling systems?
No, this specific model is a dedicated heating-only control. For HVAC applications requiring cooling or heat/cool changeover, a double-throw (SPDT) or dedicated cooling model from the ET series is required.
Does this thermostat require a neutral wire?
The ET9STS is a single-pole (SPST) device that breaks one side of the line. While a neutral is required for the overall circuit in 120V systems, the thermostat itself acts as a series switch for the hot leg of the power supply.
Can I use this for 240V baseboard heaters?
Yes, the electrical rating supports up to 277V. However, as an SPST switch, it will only break one "hot" leg of a 240V circuit; consult local codes if a double-pole (DPST) break is required for safety disconnect.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
