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+86 189 8978 2810

Straight Rod Stainless Steel Float Level Switch with Hirschmann Connector (Single Ball)

Case Quantity
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1-inch threaded stainless steel float switch

Stainless steel float switch with Hirschmann connector

Plug-and-play maintenance, easy replacement

Stable industrial connector with locking screw

Corrosion-resistant stainless steel structure

Imported reed switch, reliable performance

Suitable for industrial automation systems

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Application

Industrial Storage & Water Tanks

Liquid level monitoring and control for tanks, reservoirs, and industrial containers.

Pump & Valve Control Systems

Automatic pump operation, solenoid valve control, and fluid management applications.

Industrial Automation Systems

Reliable liquid level sensing for production lines, sensors, and automated equipment.

Water Treatment & Irrigation Systems

Level control solutions for water treatment, irrigation, and fluid handling systems.

Machinery & Signal Control Equipment

Stable signal transmission for motors, inverters, and industrial machinery.

Description

Description Background

The straight rod stainless steel float level switch with Hirschmann connector is a reed switch type liquid level controller designed for reliable industrial liquid level monitoring. Compared with traditional direct-wire float switches, the Hirschmann plug structure provides faster maintenance, cleaner wiring, and more professional installation for industrial projects.

The detachable connector design allows quick plug-and-play replacement without removing the entire cable, greatly improving maintenance efficiency in equipment requiring frequent servicing. With a square connector structure and locking screw design, the connection is more stable, secure, and resistant to loosening or oxidation during long-term operation.

Made of high-quality stainless steel with laser welding technology and imported reed switch components, the product offers excellent corrosion resistance, stable switching performance, and long service life. It is especially suitable for industrial environments with electromagnetic interference from motors, pumps, inverters, and solenoid valves.

Features

01DEPENDABLE
Made from high-quality stainless steel, offering excellent corrosion resistance, long service life, and stable performance in demanding environments.
Stainless Steel Construction for Long Service Life
Stainless steel construction provides long service life and stable performance
02EFFICIENT
Advanced seamless laser welding provides smooth, strong joints with excellent sealing performance, enhanced structural integrity, and long-term durability.
Precision Laser Welding for Durable Sealing
Precision laser welding with smooth, burr-free welds and a secure leak-resistant bottom
03SECURE
Equipped with a Hirschmann-style connector for secure connection, reliable signal transmission, and convenient installation and maintenance.
Hirschmann connector
Hirschmann connector
04CONVENIENT
Designed with durable materials and reliable construction for stable performance and extended service life, reducing maintenance and replacement costs.
Long Service Life
Long Service Life

Technical Details

Product Type:

Float Level Switch

Product Model:

Material:

Stainless Steel (304/316 Optional)

Size:

See attached drawing

Type:

Straight Rod Float Level Switch with Hirschmann Connector(Single Ball)

Operating Temperature:

-30°C to +120°C

Max Contact Rating:

10VA (1A1) / 50VA (2A1)

Max Switching Voltage:

100V AC/DC (1A1) / 220V AC/DC (2A1)

Max Switching Current:

0.5A (1A1) / 1.5A (2A1)

Max Breakdown Voltage:

110V AC/DC (1A1) / 300V AC/DC (2A1)

Max Contact Resistance:

100mΩ (1A1 / 2A1)

Connector Type:

Hirschmann Industrial Connector

Installation Type:

Threaded Mounting

Switch Type:

Imported Reed Switch

Protection Level:

IP65 or Higher

Feature:

Plug-and-play detachable connector structure

Accessories

We reserve the right to make technical alterations without prior notice.
Dimensions
Wiring diagram

What is a Hirschmann connector float level switch used for?

This float level switch is used for liquid level detection and automatic control in industrial tanks, water treatment systems, chemical containers, and pump control systems. It is widely used for: Pump control High/low level alarm Overflow protection Dry-run protection Industrial automation systems The Hirschmann connector design allows quick plug-and-play installation and easy maintenance without rewiring.

What is the advantage of the Hirschmann connector?

The main advantages are: Fast installation Easy maintenance Stable electrical connection Reduced wiring errors Suitable for industrial environments It is especially useful in systems that require frequent maintenance or replacement.

What material is the float switch made of?

The float switch is made of SU304 stainless steel, including the float ball and rod, providing: Corrosion resistance High mechanical strength High temperature resistance Long service life 316 stainless steel customization is available for more corrosive environments.

Is it normally open (NO) or normally closed (NC)?

It supports both Normally Open (NO) and Normally Closed (NC), depending on the float orientation. The switching logic can be changed by reversing the float by 180°. Lower-Open Type (Default) ① When the liquid level rises, the float moves away from the reed switch position, and the switch turns OFF. ② When the liquid level falls, the float returns to the reed switch position, and the switch turns ON. Upper-Open Type ① When the liquid level rises, the float returns to the reed switch position, and the switch turns ON. ② When the liquid level falls, the float moves away from the reed switch position, and the switch turns OFF. Note The factory default is usually the lower-open type, but users can adjust it according to control requirements.

Can it directly control pumps or valves?

No. The internal reed switch only supports low current and cannot directly drive: Water pumps Solenoid valves Contactors Recommended solution: Alarm/valve → relay Pump → relay + contactor Direct connection may damage the reed switch.

What is the benefit of the straight rod structure?

Easy vertical installation Stable float movement Suitable for narrow tanks Multiple installation positions It is widely used in industrial liquid level systems.

What media is it suitable for?

Suitable for: Water Oil Chemical liquids Industrial fluids Not suitable for: Heavy sludge Liquids with large debris

Can rod length and connector be customized?

Yes. Customization options include: Rod length Float position Cable length Thread type OEM / ODM production

What should buyers confirm before ordering?

Liquid type Temperature Pressure Installation direction Rod length Thread size Cable specification NO / NC logic Quantity

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