Utica-Dunkirk 29197 Limit Switch
The Utica-Dunkirk 29197 Limit Switch is a critical safety component engineered for precise thermal regulation in hydronic heating systems and various industrial applications. Also recognized by the identical part number OL29197, this L150-20F limit switch functions as a primary safety control, monitoring water or air temperatures to prevent overheating conditions. Designed for professionals, this high-limit switch features a robust zinc die-cast housing and a snap-action mechanism that ensures positive electrical switching even in high-vibration environments.
This OEM replacement part is rated at 15A at 250VAC, providing the durability required for heavy-duty service. With a mechanical life of up to 10 million cycles and an operating temperature range of -4°F to 158°F, it offers consistent performance across diverse conditions. The L150-20F specification indicates a 150°F fixed limit with a 20°F differential, making it essential for maintaining boiler efficiency and preventing system damage during abnormal thermal spikes. For the service tech, the pre-wired leads and NEMA 1 and 4 protection classes simplify HVAC part installation while protecting against dust and moisture ingress.
Key Benefits:- Precise Thermal Control: Fixed 150°F limit with a 20°F differential ensures accurate safety shutdowns.
- Rugged Construction: Zinc die-cast frame provides industrial-grade durability and heat resistance.
- Snap-Action Reliability: Quick-break contacts reduce electrical arcing and extend the service life of the switch.
- Dual Housing Compatibility: Meets NEMA 1 and 4 standards for superior environmental protection.
- Standardized Integration: Identical to OL29197, ensuring a direct drop-in fit for Utica and Dunkirk boiler models.
- How do I confirm if my limit switch has tripped? Check for continuity across the terminals with the power off; a lack of continuity at normal temperatures typically indicates a failed or tripped switch.
- Can the 29197 replace a different temperature-rated switch? No, limit switches must be matched to the manufacturer's specified temperature (L150-20F) to ensure the system remains within safe operating parameters.
- What causes these switches to fail prematurely? Frequent thermal cycling due to poor water flow or a scaled heat exchanger can stress the bi-metal disc, leading to mechanical fatigue.
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: $16.99
-65%$16.99
$5.95Utica-Dunkirk 29197 Limit Switch
The Utica-Dunkirk 29197 Limit Switch is a critical safety component engineered for precise thermal regulation in hydronic heating systems and various industrial applications. Also recognized by the identical part number OL29197, this L150-20F limit switch functions as a primary safety control, monitoring water or air temperatures to prevent overheating conditions. Designed for professionals, this high-limit switch features a robust zinc die-cast housing and a snap-action mechanism that ensures positive electrical switching even in high-vibration environments.
This OEM replacement part is rated at 15A at 250VAC, providing the durability required for heavy-duty service. With a mechanical life of up to 10 million cycles and an operating temperature range of -4°F to 158°F, it offers consistent performance across diverse conditions. The L150-20F specification indicates a 150°F fixed limit with a 20°F differential, making it essential for maintaining boiler efficiency and preventing system damage during abnormal thermal spikes. For the service tech, the pre-wired leads and NEMA 1 and 4 protection classes simplify HVAC part installation while protecting against dust and moisture ingress.
Key Benefits:- Precise Thermal Control: Fixed 150°F limit with a 20°F differential ensures accurate safety shutdowns.
- Rugged Construction: Zinc die-cast frame provides industrial-grade durability and heat resistance.
- Snap-Action Reliability: Quick-break contacts reduce electrical arcing and extend the service life of the switch.
- Dual Housing Compatibility: Meets NEMA 1 and 4 standards for superior environmental protection.
- Standardized Integration: Identical to OL29197, ensuring a direct drop-in fit for Utica and Dunkirk boiler models.
- How do I confirm if my limit switch has tripped? Check for continuity across the terminals with the power off; a lack of continuity at normal temperatures typically indicates a failed or tripped switch.
- Can the 29197 replace a different temperature-rated switch? No, limit switches must be matched to the manufacturer's specified temperature (L150-20F) to ensure the system remains within safe operating parameters.
- What causes these switches to fail prematurely? Frequent thermal cycling due to poor water flow or a scaled heat exchanger can stress the bi-metal disc, leading to mechanical fatigue.
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 Utica-Dunkirk 29197 Limit Switch is a critical safety component engineered for precise thermal regulation in hydronic heating systems and various industrial applications. Also recognized by the identical part number OL29197, this L150-20F limit switch functions as a primary safety control, monitoring water or air temperatures to prevent overheating conditions. Designed for professionals, this high-limit switch features a robust zinc die-cast housing and a snap-action mechanism that ensures positive electrical switching even in high-vibration environments.
This OEM replacement part is rated at 15A at 250VAC, providing the durability required for heavy-duty service. With a mechanical life of up to 10 million cycles and an operating temperature range of -4°F to 158°F, it offers consistent performance across diverse conditions. The L150-20F specification indicates a 150°F fixed limit with a 20°F differential, making it essential for maintaining boiler efficiency and preventing system damage during abnormal thermal spikes. For the service tech, the pre-wired leads and NEMA 1 and 4 protection classes simplify HVAC part installation while protecting against dust and moisture ingress.
Key Benefits:- Precise Thermal Control: Fixed 150°F limit with a 20°F differential ensures accurate safety shutdowns.
- Rugged Construction: Zinc die-cast frame provides industrial-grade durability and heat resistance.
- Snap-Action Reliability: Quick-break contacts reduce electrical arcing and extend the service life of the switch.
- Dual Housing Compatibility: Meets NEMA 1 and 4 standards for superior environmental protection.
- Standardized Integration: Identical to OL29197, ensuring a direct drop-in fit for Utica and Dunkirk boiler models.
- How do I confirm if my limit switch has tripped? Check for continuity across the terminals with the power off; a lack of continuity at normal temperatures typically indicates a failed or tripped switch.
- Can the 29197 replace a different temperature-rated switch? No, limit switches must be matched to the manufacturer's specified temperature (L150-20F) to ensure the system remains within safe operating parameters.
- What causes these switches to fail prematurely? Frequent thermal cycling due to poor water flow or a scaled heat exchanger can stress the bi-metal disc, leading to mechanical fatigue.
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.
