
Cleveland Controls NS2-0312-00 Pressure Switch
The Cleveland Controls NS2-0312-00 Pressure Switch is a high-precision air flow sensing switch engineered for critical monitoring in residential and light commercial HVACR applications. Operating at a fixed factory-calibrated set point of .90" WC, this unit utilizes a sensitive silicone diaphragm and a glass-filled polycarbonate housing to ensure long-term stability in demanding environments. As a veteran-grade differential pressure switch, it is designed to prove inducer motor operation by sensing positive, negative, or differential air pressure. The SPDT contact arrangement and 90-degree quick-connect terminals allow for versatile electrical integration, supporting 300 VA pilot duty at 115 to 277 V AC. With a narrow switching differential and a broad operating temperature range of -40 to 180 °F, the NS2-0312-00 provides the reliable furnace cycle initiation and safety proving required by professional contractors for precise OEM replacement and system optimization.
Key Benefit List:- Precise Pressure Monitoring: Factory-set at .90" WC with a narrow switching differential of approximately 0.02±0.01” WC for consistent tripping.
- Professional-Grade Durability: Constructed with a rugged glass-filled polycarbonate body and a high-quality silicone diaphragm capable of exceeding 100,000 cycles.
- Universal Sensing Capability: Engineered to monitor positive, negative, or differential pressure, fitting a wide array of furnace inducer and ventilation configurations.
- Simplified Installation: Features color-coded ports (black for positive, gray for negative) and standard 1/4" 90-degree spade terminals for rapid field replacement.
- Wide Environmental Tolerance: Maintains high set-point accuracy across an expansive temperature range from -40°F to 180°F, ideal for unconditioned mechanical rooms.
- How do I confirm the orientation for the sample lines? The NS2-0312-00 uses color-coded inlets: the black port (P1) is for positive pressure, while the gray port (P2) is for negative or vacuum pressure. Ensure the diaphragm is mounted in a vertical plane to maintain the calibrated set point.
- Can this switch replace a different WC rating? No. Pressure switches are safety devices matched specifically to the inducer motor and heat exchanger resistance. Always match the .90" WC rating exactly to the manufacturer's specifications.
- What does a '3 Red Flashes' code mean on the control board? In many systems, this indicates the pressure switch is open when it should be closed. Use a manometer to verify if the inducer is actually pulling .90" WC before condemning the switch.
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: $50.88
-65%$50.88
$17.81Cleveland Controls NS2-0312-00 Pressure Switch
The Cleveland Controls NS2-0312-00 Pressure Switch is a high-precision air flow sensing switch engineered for critical monitoring in residential and light commercial HVACR applications. Operating at a fixed factory-calibrated set point of .90" WC, this unit utilizes a sensitive silicone diaphragm and a glass-filled polycarbonate housing to ensure long-term stability in demanding environments. As a veteran-grade differential pressure switch, it is designed to prove inducer motor operation by sensing positive, negative, or differential air pressure. The SPDT contact arrangement and 90-degree quick-connect terminals allow for versatile electrical integration, supporting 300 VA pilot duty at 115 to 277 V AC. With a narrow switching differential and a broad operating temperature range of -40 to 180 °F, the NS2-0312-00 provides the reliable furnace cycle initiation and safety proving required by professional contractors for precise OEM replacement and system optimization.
Key Benefit List:- Precise Pressure Monitoring: Factory-set at .90" WC with a narrow switching differential of approximately 0.02±0.01” WC for consistent tripping.
- Professional-Grade Durability: Constructed with a rugged glass-filled polycarbonate body and a high-quality silicone diaphragm capable of exceeding 100,000 cycles.
- Universal Sensing Capability: Engineered to monitor positive, negative, or differential pressure, fitting a wide array of furnace inducer and ventilation configurations.
- Simplified Installation: Features color-coded ports (black for positive, gray for negative) and standard 1/4" 90-degree spade terminals for rapid field replacement.
- Wide Environmental Tolerance: Maintains high set-point accuracy across an expansive temperature range from -40°F to 180°F, ideal for unconditioned mechanical rooms.
- How do I confirm the orientation for the sample lines? The NS2-0312-00 uses color-coded inlets: the black port (P1) is for positive pressure, while the gray port (P2) is for negative or vacuum pressure. Ensure the diaphragm is mounted in a vertical plane to maintain the calibrated set point.
- Can this switch replace a different WC rating? No. Pressure switches are safety devices matched specifically to the inducer motor and heat exchanger resistance. Always match the .90" WC rating exactly to the manufacturer's specifications.
- What does a '3 Red Flashes' code mean on the control board? In many systems, this indicates the pressure switch is open when it should be closed. Use a manometer to verify if the inducer is actually pulling .90" WC before condemning the switch.
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 Cleveland Controls NS2-0312-00 Pressure Switch is a high-precision air flow sensing switch engineered for critical monitoring in residential and light commercial HVACR applications. Operating at a fixed factory-calibrated set point of .90" WC, this unit utilizes a sensitive silicone diaphragm and a glass-filled polycarbonate housing to ensure long-term stability in demanding environments. As a veteran-grade differential pressure switch, it is designed to prove inducer motor operation by sensing positive, negative, or differential air pressure. The SPDT contact arrangement and 90-degree quick-connect terminals allow for versatile electrical integration, supporting 300 VA pilot duty at 115 to 277 V AC. With a narrow switching differential and a broad operating temperature range of -40 to 180 °F, the NS2-0312-00 provides the reliable furnace cycle initiation and safety proving required by professional contractors for precise OEM replacement and system optimization.
Key Benefit List:- Precise Pressure Monitoring: Factory-set at .90" WC with a narrow switching differential of approximately 0.02±0.01” WC for consistent tripping.
- Professional-Grade Durability: Constructed with a rugged glass-filled polycarbonate body and a high-quality silicone diaphragm capable of exceeding 100,000 cycles.
- Universal Sensing Capability: Engineered to monitor positive, negative, or differential pressure, fitting a wide array of furnace inducer and ventilation configurations.
- Simplified Installation: Features color-coded ports (black for positive, gray for negative) and standard 1/4" 90-degree spade terminals for rapid field replacement.
- Wide Environmental Tolerance: Maintains high set-point accuracy across an expansive temperature range from -40°F to 180°F, ideal for unconditioned mechanical rooms.
- How do I confirm the orientation for the sample lines? The NS2-0312-00 uses color-coded inlets: the black port (P1) is for positive pressure, while the gray port (P2) is for negative or vacuum pressure. Ensure the diaphragm is mounted in a vertical plane to maintain the calibrated set point.
- Can this switch replace a different WC rating? No. Pressure switches are safety devices matched specifically to the inducer motor and heat exchanger resistance. Always match the .90" WC rating exactly to the manufacturer's specifications.
- What does a '3 Red Flashes' code mean on the control board? In many systems, this indicates the pressure switch is open when it should be closed. Use a manometer to verify if the inducer is actually pulling .90" WC before condemning the switch.
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.












