Dwyer Instruments TSW-250 Temperature Switch
The Dwyer Instruments TSW-250 is a rugged, digital temperature switch designed for heavy-duty HVACR and industrial processes. This dual stage temperature control features a weatherproof NEMA 4X enclosure, making it the standard for rooftop units and washdown environments. Operating on a universal 90 to 255 Vac power supply, the TSW-250 eliminates the need for separate models for different voltage requirements. The unit utilizes a precise PTC thermistor input to manage two independent SPDT relay outputs, allowing for complex staging or alarm configurations. With its intuitive front-panel programming and bright LED display, technicians can quickly adjust setpoints, differentials, and anti-short cycle delay parameters to protect compressors and critical hardware. The TSW-250 series is engineered for field reliability where standard controls fail due to moisture or extreme ambient conditions.
- NEMA 4X (IP66) Housing: Ensures internal electronics remain protected from rain, snow, and corrosive cleaning agents.
- Dual Output Control: Two 20A relays allow for managing multi-stage heating or cooling systems with a single device.
- Universal Voltage: Wide 90 to 255 Vac range simplifies inventory and installation across various electrical infrastructures.
- Configurable Parameters: Features adjustable deadband, heating/cooling modes, and probe calibration for high-accuracy sensing.
Common Technical Questions
Can the TSW-250 be used for both heating and cooling applications?
Yes, each stage on the Dwyer TSW-250 can be independently configured for heating or cooling logic via the internal menu, making it highly versatile for diverse mechanical cycles.
What type of sensor is compatible with this digital switch?
This unit is specifically designed to work with a PTC thermistor probe. Using a standard 10k Type III or Type II thermistor will result in inaccurate readings or error codes.
Is this switch suitable for outdoor refrigeration condensers?
Absolutely. The weatherproof temperature switch housing is rated for outdoor use, providing superior resistance to UV exposure and moisture ingress compared to standard DIN-rail controls.
This item is not eligible for free shipping.
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: $151.38
-65%$151.38
$52.98Dwyer Instruments TSW-250 Temperature Switch
The Dwyer Instruments TSW-250 is a rugged, digital temperature switch designed for heavy-duty HVACR and industrial processes. This dual stage temperature control features a weatherproof NEMA 4X enclosure, making it the standard for rooftop units and washdown environments. Operating on a universal 90 to 255 Vac power supply, the TSW-250 eliminates the need for separate models for different voltage requirements. The unit utilizes a precise PTC thermistor input to manage two independent SPDT relay outputs, allowing for complex staging or alarm configurations. With its intuitive front-panel programming and bright LED display, technicians can quickly adjust setpoints, differentials, and anti-short cycle delay parameters to protect compressors and critical hardware. The TSW-250 series is engineered for field reliability where standard controls fail due to moisture or extreme ambient conditions.
- NEMA 4X (IP66) Housing: Ensures internal electronics remain protected from rain, snow, and corrosive cleaning agents.
- Dual Output Control: Two 20A relays allow for managing multi-stage heating or cooling systems with a single device.
- Universal Voltage: Wide 90 to 255 Vac range simplifies inventory and installation across various electrical infrastructures.
- Configurable Parameters: Features adjustable deadband, heating/cooling modes, and probe calibration for high-accuracy sensing.
Common Technical Questions
Can the TSW-250 be used for both heating and cooling applications?
Yes, each stage on the Dwyer TSW-250 can be independently configured for heating or cooling logic via the internal menu, making it highly versatile for diverse mechanical cycles.
What type of sensor is compatible with this digital switch?
This unit is specifically designed to work with a PTC thermistor probe. Using a standard 10k Type III or Type II thermistor will result in inaccurate readings or error codes.
Is this switch suitable for outdoor refrigeration condensers?
Absolutely. The weatherproof temperature switch housing is rated for outdoor use, providing superior resistance to UV exposure and moisture ingress compared to standard DIN-rail controls.
This item is not eligible for free shipping.
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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Product Information
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Description
The Dwyer Instruments TSW-250 is a rugged, digital temperature switch designed for heavy-duty HVACR and industrial processes. This dual stage temperature control features a weatherproof NEMA 4X enclosure, making it the standard for rooftop units and washdown environments. Operating on a universal 90 to 255 Vac power supply, the TSW-250 eliminates the need for separate models for different voltage requirements. The unit utilizes a precise PTC thermistor input to manage two independent SPDT relay outputs, allowing for complex staging or alarm configurations. With its intuitive front-panel programming and bright LED display, technicians can quickly adjust setpoints, differentials, and anti-short cycle delay parameters to protect compressors and critical hardware. The TSW-250 series is engineered for field reliability where standard controls fail due to moisture or extreme ambient conditions.
- NEMA 4X (IP66) Housing: Ensures internal electronics remain protected from rain, snow, and corrosive cleaning agents.
- Dual Output Control: Two 20A relays allow for managing multi-stage heating or cooling systems with a single device.
- Universal Voltage: Wide 90 to 255 Vac range simplifies inventory and installation across various electrical infrastructures.
- Configurable Parameters: Features adjustable deadband, heating/cooling modes, and probe calibration for high-accuracy sensing.
Common Technical Questions
Can the TSW-250 be used for both heating and cooling applications?
Yes, each stage on the Dwyer TSW-250 can be independently configured for heating or cooling logic via the internal menu, making it highly versatile for diverse mechanical cycles.
What type of sensor is compatible with this digital switch?
This unit is specifically designed to work with a PTC thermistor probe. Using a standard 10k Type III or Type II thermistor will result in inaccurate readings or error codes.
Is this switch suitable for outdoor refrigeration condensers?
Absolutely. The weatherproof temperature switch housing is rated for outdoor use, providing superior resistance to UV exposure and moisture ingress compared to standard DIN-rail controls.
This item is not eligible for free shipping.
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.
