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Saginomiya Pressure Switch



SAGINOMIYA PRESSURE CONTROLS

Saginomiya SYS, DYS & DNS Pressure Switch

Professional mechanical pressure controls for commercial refrigeration, cold rooms, air-conditioning and industrial equipment, available in single-pressure and dual high/low-pressure configurations.

SYS Series DYS Series DNS Series Low Pressure High Pressure Dual Pressure

â„ī¸ Saginomiya Refrigeration Pressure Controls

Saginomiya pressure switches are designed for pressure control and protection in refrigeration, air-conditioning and compatible industrial systems.

The range includes the compact SYS single-function pressure control and the DYS and DNS dual pressure controls that combine low-side control with high-side overpressure protection.

With multiple pressure ranges, automatic-reset and manual-reset configurations, Saginomiya provides solutions for applications ranging from compressor low-pressure control to high-pressure protection and combined high/low pressure control.

Quick Understanding:

đŸ”ĩ SYS = Single Pressure Control    đŸŸĸ DYS = Compact Dual High / Low Pressure Control    đŸ”ĩđŸŸĸ DNS = Extended Dual Pressure Control Family

🔍 SYS vs DYS vs DNS – What's the Difference?

SYS Series

Single Function Compact Auto / Manual Reset

General-purpose single pressure control for low- or high-pressure applications.

Ideal when only one pressure point or one side of the refrigeration system needs to be monitored or controlled.

DYS Series

Dual Pressure Compact High + Low

Compact dual pressure control combining high-side overpressure protection with low-side pressure control.

Designed as a lightweight integrated solution for refrigeration and air-conditioning equipment.

DNS Series

Dual Pressure Multiple Configurations Weatherproof Options

Full-featured dual pressure control family combining high-side protection and low-side control.

Available with multiple contact/reset configurations and optional drip-proof and waterproof versions.

đŸ”ĩ SYS Series – Single Function Pressure Control

The SYS Series is Saginomiya's compact single-function pressure-control family. The manufacturer highlights its reliable operation, long service design, light weight and easy-to-read scale.

View Full SYS Automatic Reset Range
Model Pressure Range Adjustable Differential Max. Working Pressure Reset
SYS-C103X0 -0.6 to 3 bar 0.35 to 2 bar 16.5 bar Automatic
SYS-C106X0 -0.6 to 6 bar 0.6 to 4 bar 16.5 bar Automatic
SYS-C110X0 1 to 10 bar 1 to 3 bar 16.5 bar Automatic
SYS-C130X0 5 to 30 bar 3 to 10 bar 33 bar Automatic
SYS-C135X0 10 to 35 bar 5 to 15 bar 38 bar Automatic
SYS-C140X0 10 to 43 bar 5 to 10 bar 47 bar Automatic
View SYS Manual Reset Range
Model Pressure Range Reset Type Max. Working Pressure
SYS-C106X0M2 -0.6 to 6 bar Manual Reset 16.5 bar
SYS-C130X0M2 5 to 30 bar Manual Reset 33 bar
đŸŒĄī¸ Refrigerant Note: According to Saginomiya's current SYS catalogue, SYS-C140X0 is the listed SYS model specifically applicable to R410A. The manufacturer states that the other listed SYS models are not compatible with R410A.
Model Suffix: The official global catalogue uses X0 for MPa display and offers alternative display-unit suffixes including X1 (bar), X2 (kgf/cm²), X3 (kPa), X4 (lb/in²) and X5 (psi). Regional versions may carry additional suffixes. Always match the complete model number on the product nameplate when replacing an existing pressure switch.

đŸŸĸ DYS Series – Compact Dual Pressure Control

The DYS Series combines low-pressure control and high-pressure overpressure protection in one compact enclosure.

Its low-pressure side operates over a range of -0.6 to 6 bar, while the high-pressure side is adjustable from 8 to 30 bar.

View Full DYS Range
Model Low Range Low Differential High Range High Differential Reset Configuration
DYS-D306X0 -0.6 to 6 bar 0.6 to 4 bar 8 to 30 bar Approx. 5 bar Fixed Automatic
DYS-D606X0 -0.6 to 6 bar 0.6 to 4 bar 8 to 30 bar Approx. 5 bar Fixed Automatic
DYS-D306X0M -0.6 to 6 bar 0.6 to 4 bar 8 to 30 bar Manual Reset on High Side Low Auto / High Manual
DYS-D606X0M -0.6 to 6 bar 0.6 to 4 bar 8 to 30 bar Manual Reset on High Side Low Auto / High Manual
DYS-D606X0MM -0.6 to 6 bar Manual Reset 8 to 30 bar Manual Reset Low & High Manual Reset
D306 vs D606: Models with the same pressure range may have different internal contact functions / wiring arrangements. Do not select between D306 and D606 based only on pressure range.
Low-Side Maximum Working Pressure 16.5 bar / 1.65 MPa
High-Side Maximum Working Pressure 33 bar / 3.3 MPa
Fluid Temperature -20°C to +120°C
Ambient Temperature -20°C to +70°C
Enclosure IP20
Typical Application Refrigeration & Air Conditioning

đŸ”ĩđŸŸĸ DNS Series – Dual Pressure Control

The DNS Series is the more configurable dual-pressure-control family, combining high-side overpressure protection and low-side control.

Saginomiya offers automatic reset, high-pressure manual reset and high/low manual-reset configurations, together with optional enclosure variants for more demanding installations.

View DNS Automatic Reset Range
Model Low Range Low Differential High Range High Differential Reset
DNS-D304X -0.6 to 4 bar 0.4 to 2 bar 8 to 30 bar Approx. 4 bar Fixed Automatic
DNS-D306X -0.6 to 6 bar 0.6 to 4 bar 8 to 30 bar Approx. 4 bar Fixed Automatic
DNS-D604X -0.6 to 4 bar 0.4 to 2 bar 8 to 30 bar Approx. 4 bar Fixed Automatic
DNS-D606X -0.6 to 6 bar 0.6 to 4 bar 8 to 30 bar Approx. 4 bar Fixed Automatic
View DNS Manual Reset Range
Model Low Range High Range Reset Configuration
DNS-D304XM -0.6 to 4 bar 8 to 30 bar Low Auto / High Manual Reset
DNS-D306XM -0.6 to 6 bar 8 to 30 bar Low Auto / High Manual Reset
DNS-D604XM -0.6 to 4 bar 8 to 30 bar Low Auto / High Manual Reset
DNS-D606XM -0.6 to 6 bar 8 to 30 bar Low Auto / High Manual Reset
DNS-D606XMM -0.6 to 6 bar 8 to 30 bar Low & High Manual Reset
View DNS Enclosure Options
Standard DNS IP20 enclosure for standard indoor applications.
DNS-W Drip-Proof IP62 version available for applications requiring additional protection.
DNS-P Waterproof IP66 version available for applications requiring higher enclosure protection.

Saginomiya also lists additional special configurations and certifications depending on model and application. Always verify the exact suffix before ordering.

Low-Side Max. Working Pressure 15 bar / 1.5 MPa
High-Side Max. Working Pressure 33 bar / 3.3 MPa
Fluid Temperature -20°C to +120°C
Ambient Temperature -20°C to +70°C

💡 Quick Selection Guide

Requirement Recommended Family Reason
Single low-pressure control SYS Compact single-function pressure switch
Single high-pressure control SYS High-pressure ranges available
R410A single pressure control SYS-C140 Specifically identified for R410A by Saginomiya
Combined low + high pressure control DYS / DNS Both functions integrated into one control
Compact dual pressure control DYS Compact and lightweight dual-control design
Dual control with more configuration options DNS Broader reset, contact and enclosure options
Waterproof dual pressure control DNS-P IP66 enclosure version
Drip-proof dual pressure control DNS-W IP62 enclosure version

⭐ Key Features & Advantages

âš™ī¸ Mechanical Pressure Control Straightforward pressure-responsive control suitable for conventional HVACR systems.
đŸŽ›ī¸ Adjustable Pressure Range Allows technicians to set the operating pressure according to system requirements.
📊 Easy-to-Read Scale Large visible pressure scales simplify adjustment and service inspection.
â†Šī¸ Multiple Reset Options Automatic, high-pressure manual and dual manual-reset configurations are available depending on series.
đŸ“Ļ Compact Design SYS and DYS families provide compact solutions for equipment with limited installation space.
đŸ›Ąī¸ Protection Functions Dual pressure models combine low-side operating control and high-side pressure protection.

🏭 Typical Applications

â„ī¸ Cold Rooms Pressure control and protection for cold-room refrigeration systems.
âš™ī¸ Condensing Units Low- and high-pressure control for compatible commercial condensing units.
🧊 Commercial Refrigeration Suitable for compatible refrigeration equipment, display systems and cooling installations.
đŸŒŦī¸ Air Conditioning Pressure monitoring and switching in compatible air-conditioning systems.
🔄 Compressor Control Pressure-responsive switching for compatible compressor control circuits.
🏭 Industrial Equipment Pressure-control applications within compatible industrial systems.

🔧 How to Select the Correct Saginomiya Pressure Switch

1ī¸âƒŖ Single or Dual? Choose SYS for a single pressure function or DYS/DNS when both high and low pressure control are required.
2ī¸âƒŖ Check Pressure Range The required cut-in and cut-out points must fall within the selected model's adjustment range.
3ī¸âƒŖ Check Differential Confirm that the required switching differential matches the selected model.
4ī¸âƒŖ Select Reset Type Choose automatic reset, high-side manual reset or high/low manual reset according to the system.
5ī¸âƒŖ Check Refrigerant Confirm compatibility with the actual refrigerant and operating pressure.
6ī¸âƒŖ Match Full Model Number Check pressure connection, scale, contact function and complete suffix before replacing an existing unit.
âš ī¸ Important: Do not select a replacement pressure switch based only on appearance or pressure range. Models with similar ranges may use different contact functions, reset arrangements, connections or pressure-scale configurations. Always verify the complete Saginomiya model number.

📌 About X24A / X24M / X24MM Model Numbers

Depending on market and product configuration, Saginomiya pressure controls may be encountered with model numbers such as SYS-C130X24A, DYS-D606X24M and DYS-D606X24MM.

The tables above follow the model structure and specifications published in Saginomiya's current global catalogue. Regional suffixes and connection/scale configurations may differ, so the complete model number on the actual product nameplate should always be checked before replacement.

Saginomiya Pressure Switch Supplier Malaysia

RNA Engineering & Trading Sdn Bhd supplies Saginomiya pressure controls for commercial refrigeration, cold rooms, condensing units and air-conditioning applications.

Contact our team for pricing, availability, model matching and pressure-control selection.



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