
H20490 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $224.99 | Condition is New – Open box, NEW EL-O-MATIC H20490 250AC SWITCH HD SERIES (LPW18M), FREE SHIPPING | 99.8% |

The El-O-Matic H20490 250AC Switch LPW18M is a versatile and reliable water flow switch designed for use in various industrial and commercial applications. This switch is engineered to detect the presence or absence of water flow in pipes or vessels, making it an essential component in systems that require water level monitoring or control.
The H20490 model is a 250-ampere contact, normally open (NO) switch, which means it closes when water flows through it and opens when the flow stops. It is ideal for applications where water flow needs to be monitored continuously or intermittently, such as in cooling systems, irrigation systems, or sewage treatment plants.
This switch features a rugged, corrosion-resistant polypropylene housing that can withstand harsh environments and resist the corrosive effects of water and chemicals. The LPW18M version of the switch has a 18-millimeter threaded connection that allows easy installation on pipes or vessels with standard thread sizes.
The El-O-Matic H20490 250AC Switch LPW18M operates on a 250-volt AC power supply and has a switching capacity of up to 250 amperes. It is designed to handle high flow rates, making it suitable for use in large-scale industrial applications. The switch also features a built-in thermal overload protector, which helps prevent damage to the switch or the connected equipment due to overheating.
The H20490 switch is easy to install and maintain. It comes with a clear, tamper-evident seal that indicates if the switch has been opened, ensuring the integrity of the installation. The switch also has a test button that allows users to verify its functionality without interrupting the water flow.
The El-O-Matic H20490 250AC Switch LPW18M is a high-quality, dependable water flow switch that offers superior performance and reliability. Its rugged construction, easy installation, and versatile applications make it an essential component for various industrial and commercial systems.
The El-O-Matic H20490 250AC Switch LPW18M is a heavy-duty industrial switch designed for use in applications where high current and voltage are required. Here are some pros and cons to help you make an informed decision about purchasing this switch:
Pros:1. High Current and Voltage Capability: This switch can handle a current of up to 250 amps and a voltage of up to 490 volts, making it suitable for industrial applications that require a significant power supply.
2. Durable Construction: The switch is designed with a robust and durable construction, featuring a die-cast aluminum housing and a copper alloy contact material. This ensures that the switch can withstand the rigors of industrial use and provides reliable performance over an extended period.
3. Low Power Consumption: The switch has a low power consumption rating, which can help reduce energy costs and save money in the long run.
4. Easy to Install: The switch comes with a simple and straightforward installation process, which can save time and effort during installation.
5. Safety Features: The switch includes several safety features, such as overload protection and short circuit protection, which can help prevent accidents and ensure the safety of the operators and equipment.
Cons:1. High Cost: The El-O-Matic H20490 250AC Switch LPW18M is a high-end industrial switch, and its price reflects its advanced features and capabilities. This may make it a less affordable option for smaller businesses or applications with lower power requirements.
2. Limited Applications: Due to its high current and voltage capabilities, this switch may not be suitable for all applications. It is specifically designed for industrial applications where high power supply is required.
3. Maintenance Requirements: The switch may require regular maintenance to ensure optimal performance and longevity. This can include cleaning contacts, replacing worn parts, and performing routine inspections.
Conclusion:The El-O-Matic H20490 250AC Switch LPW18M is a high-quality industrial switch that offers advanced features and capabilities, including high current and voltage capacity, durability, low power consumption, easy installation, and safety features. However, its high cost and limited applications may make it a less suitable option for some businesses or applications. Therefore, it is essential to carefully consider your power requirements and budget before making a decision to purchase this switch.
Recommendation:If you require a heavy-duty industrial switch with high current and voltage capabilities, the El-O-Matic H20490 250AC Switch LPW18M is an excellent option to consider. Its robust construction, safety features, and reliable performance make it a worthwhile investment for industrial applications where power supply is critical. However, if you have lower power requirements or a limited budget, there may be other, more affordable options available that better suit your needs. It is important to carefully evaluate your specific application requirements and budget before making a purchase decision.
Details:
Shipped with USPS ground advantage. New El-o-matic H20490 250ac switch hd series LPW18M.
specifications indusswitch:
- brand: El-o-matic
- mpn: H20490
- part type: Switch
- current type: Ac
offer indusswitch:
- availability: in stock
- options: ship-to-home
- in stock #: 1
- started: july 9, 2025
- price: $224.99
- item condition: New – Open box
- sold #: 16
payments indusswitch:
- wallet: paypal
- other
- credit card: diners-club
shipping indusswitch:
- service: usps ground advantage
- transit: 3-7 days
- class: standard
- type: calculated
- carrier: usps
returns indusswitch:
- policy: no returns
general indusswitch:
- category: Business & Industrial > Electrical Equipment Supplies > Limit Snap Action Switches
sEller indusswitch:
- # reviews: 8334
- city: bismarck, north dakota
- rating: 99.9%
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