Description

Vertical Float Switch Model SDN 204 – SPDT Level Switch, 500V DC / 250V AC

The Vertical Float Switch Model SDN 204 is a compact and reliable liquid level sensor designed to automatically monitor and control liquid levels in tanks, reservoirs, marine systems, and industrial equipment. Featuring a Single Pole Double Throw (SPDT) contact configuration, this float switch provides dependable switching for high and low-level detection in a wide range of applications.

Designed for durability and long service life, the SDN 204 Vertical Float Switch supports a maximum switching voltage of 500V DC or 250V AC, with a maximum switching current of 1.5A and a contact rating of 50VA. Its vertical mounting design makes installation simple while ensuring accurate and repeatable liquid level control.

Suitable for water, fuel, coolant, oils, and other compatible liquids, the SDN 204 is commonly used in marine vessels, yachts, industrial machinery, water treatment systems, HVAC equipment, and storage tanks.

Key Features

• Vertical float switch for liquid level detection
• Model: SDN 204
• SPDT (Single Pole Double Throw) contact configuration
• Maximum switching voltage:
  • 500V DC
  • 250V AC
• Maximum switching current: 1.5A
• Contact rating: 50VA
• Compact and lightweight design
• Reliable liquid level monitoring
• Durable construction for long service life
• Easy vertical installation
• Low maintenance operation
• Suitable for automatic pump and alarm control

Benefits

Accurate Liquid Level Detection

Provides reliable monitoring of liquid levels, helping prevent tank overflow, dry running, and equipment damage.

Versatile SPDT Contacts

The SPDT contact arrangement allows the switch to be used for either normally open (NO) or normally closed (NC) control circuits.

Easy Installation

Its compact vertical mounting design makes installation simple in tanks, reservoirs, and equipment with limited space.

Reliable Performance

Designed for continuous operation, the SDN 204 delivers consistent switching performance in demanding industrial and marine environments.

Low Maintenance

With a simple mechanical design and durable materials, the float switch requires minimal maintenance and offers a long operational life.

Applications

The Vertical Float Switch SDN 204 is suitable for:

• Marine water tanks
• Yacht freshwater systems
• Bilge monitoring systems
• Fuel tanks
• Diesel storage tanks
• Coolant reservoirs
• Industrial liquid tanks
• Water treatment plants
• HVAC condensate systems
• Pump control systems
• Chemical storage tanks (compatible liquids)
• RO water systems
• Agricultural irrigation tanks
• Automatic level alarm systems

Compatibility

The Vertical Float Switch Model SDN 204 is compatible with:

• Water tanks
• Marine freshwater systems
• Yacht plumbing systems
• Bilge monitoring systems
• Fuel storage tanks
• Industrial process equipment
• HVAC condensate tanks
• Pump control panels
• PLC control systems
• Alarm systems
• Water treatment equipment
• Irrigation systems
• Reservoir level monitoring

Always verify the voltage, current, mounting dimensions, and fluid compatibility before installation.

Why Choose the Vertical Float Switch SDN 204?

The SDN 204 Vertical Float Switch offers dependable liquid level monitoring in a compact and easy-to-install design. Its SPDT contact configuration provides installation flexibility, while the high voltage ratings and durable construction make it suitable for both marine and industrial environments.

Whether you’re controlling a pump, activating an alarm, or automating a liquid level management system, the SDN 204 delivers reliable performance with minimal maintenance.

Buy Vertical Float Switch Model SDN 204

Looking for a reliable Vertical Float Switch Model SDN 204? We supply high-quality float level switches for marine, industrial, HVAC, water treatment, and automation applications. Contact us today for competitive pricing, expert technical support, and worldwide shipping.