SPC-103 Adjustable Mechanical Pressure Switch for Water Pump Air Compressor Refr

Product Description

1. NOTE

Default Parameters:
Power Supply: 125–250V
Temperature Range: -10 to 100°C
Output Type: Relay Signal Output

Wiring Instructions:
Terminals 1–5: Low-voltage normally closed contacts
Terminals 1–3: Low-voltage normally open contacts
Use only one set of terminals at a time; do not connect both sets simultaneously.

Warning: Never connect live and neutral wires at the same time under any circumstances.

2.Parameters

3.Features

Dual Pressure Setpoint Control
Independently adjustable upper and lower pressure limits provide flexible and precise control for a wide range of applications.

Easy-to-Read Scale Plate
Built-in scale markings allow quick pressure adjustment and convenient monitoring of current settings.

Relay Signal Output with Anti-Hysteresis Design
Reduces frequent on/off cycling of connected equipment, ensuring smoother operation and improved system stability.

Long Service Life
Designed for long-term durability and dependable performance, offering greater reliability than conventional mechanical switches.

High Accuracy and Quiet Operation
Provides precise pressure control while operating silently, eliminating the noise commonly associated with mechanical switches.

Excellent Shock and Interference Resistance
Maintains fast response and stable performance even in environments with vibration or electrical interference.

Automatic Pump Control
Automatically activates the pump when pressure or water level drops below the preset value, and shuts it off when the preset high pressure or water level is reached, enabling efficient automatic system control.

4.Applications

Widely used in refrigeration systems, HVAC equipment, industrial automation, water pump systems, liquid level control, and various fluid management applications.

5.FAQs

Q1: Can this pressure switch be used with ammonia refrigerants?
A1: Yes. The standard model is suitable for Freon, air, and other non-corrosive fluids. Special versions are also available for use with ammonia refrigerants.

Q2: How do I adjust the pressure switching settings?
A2: Adjustment is made using the screws located on the top of the switch. The right adjustment screw sets the upper pressure limit, while the left adjustment screw controls the pressure differential.

Note:
Lower Pressure Limit = Upper Pressure Limit − Pressure Differential

Q3: What is the operating temperature range?
A3: The pressure switch is designed for fluid temperatures ranging from -10°C to +100°C. It delivers stable and reliable performance throughout this operating range.

About Prime Living

Prime Living is a Canadian online store offering a carefully selected range of quality products for home, automotive, tools, outdoor living, electronics and more.

We are committed to fast order processing, secure packaging and reliable tracked shipping to provide an excellent shopping experience.

Shipping policy

We carefully handle each order to ensure your package arrives quickly and safely. Please note that factors such as weather, postal traffic, or carrier performance may occasionally cause delays beyond our control.

We provide free shipping and dispatch all orders within 2 business days of payment, often sooner. All shipments are sent via international express air shipping, with a tracking number provided so you can follow your order every step of the way.

. Please provide a physical address, as we do not ship to P.O. Boxes.

Returns

Your satisfaction is important to us. Hexlight offers a 14-day Free return policy: if you are not fully satisfied with your purchase, you may request either a full refund or an exchange. All return shipping costs are fully covered by us.

Condition

Brand New

Shipping

This item is shipped directly from our supplier in China with tracking.