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20PS-0.03 SPDT Pressure Switch - 7/16-20UNF Female, 0.03MPa OFF/0.13MPa ON, 0.02-5.5MPa Adjustable for HVAC & Precision Control

20PS-0.03 SPDT Pressure Switch - 7/16-20UNF Female, 0.03MPa OFF/0.13MPa ON, 0.02-5.5MPa Adjustable for HVAC & Precision Control

Model: 20PS-0.05; Tube specification: Φ6(6.35)×1mm copper tube; Switch points: OFF=0.05MPa, ON=0.15MPa; Installation: British pipe thread quick connector/copper tube (capillary) welding; Mounting: panel-mounted (with lugs)/inline; Reset type: manual; Sensor: sealed double-safety stainless steel disc; Structure: auto-disconnect + manual reset dual design.

Model:
20PS-0.03 SPDT Pressure Switch
Brand:
SHINE
Code:
20221152


Availability:



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Product Description

20PS-0.03 SPDT Pressure Switch

A high-performance precision pressure control device, the 20PS-0.03 integrates SPDT dual-circuit auto-commutation technology and robust construction. It’s engineered to deliver reliable pressure protection and control for HVAC systems and industrial equipment, with flexible configuration to meet diverse application needs.

Core Advantages

SPDT switch mode: Enables automatic dual-circuit commutation (H contact opens, L contact closes when pressure acts) for complex control scenarios.
Enhanced safety & durability: Fusion-welded stainless steel pressure sensor and full air-tight connection ensure leak-proof performance and long-term reliability.
Flexible customization: Supports 3~800PSI (0.02~5.5MPa) adjustable pressure, plug-in or wire connections, and British thread quick connector/brass tube welding installation.

Key Specification Table

Parameter	Details
Model	20PS-0.03
Thread Interface	7/16-20UNF Female
Switch Action Points	OFF: 0.03MPa; ON: 0.13MPa
Working Pressure Range	3~800PSI (0.02~5.5MPa)
Burst Pressure	5000PSI
Operating Temperature	Ambient: -30°C~+80°C; Medium: -50°C~+120°C
Electrical Capacity	125VA (24Vac); 375VA (120/240Vac)
Service Life Cycles	30,000/50,000/100,000 times (optional)
Dielectric Strength	AC700V/S (contacts); AC2000V/S (terminals-housing)

Working Principle & Convenience

Built with an internal reversible stainless steel diaphragm. When sensing preset pressure, the diaphragm flips to switch contacts (H opens, L closes). It auto-resets as pressure drops, reconnecting H and disconnecting L. Factory-pre-set parameters eliminate on-site adjustment, allowing immediate use upon installation—saving time and reducing operational complexity.

Application

HVAC & Refrigeration Systems

Perfect for household, commercial, and industrial air conditioning refrigeration systems. Provides precise high-low pressure protection to prevent compressor damage, refrigerant leakage, or system inefficiency caused by pressure fluctuations. Its dual-circuit commutation adapts to the control logic of modern cooling equipment, ensuring stable operation.

Precision Pressure Control Equipment

Suitable for precision pressure control systems, laboratory instruments, medical devices, and industrial machinery. Serves as reliable high-low pressure protection for hydraulic/pneumatic tools, pressure vessels, and process pipelines. Withstands extreme temperature ranges (-30°C~+80°C ambient) and offers customizable pressure settings, making it versatile for industries like manufacturing, automotive, and aerospace.