
PS40-2 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $40.00 | Condition is New – Open box, Potter PS40-2 High/Low Pressure Indicator 10-60 PSI, FREE SHIPPING | 98.7% |
![]() | $39.95 | Condition is New – Open box, Potter PS40-2 High/Low Pressure Indicator 10-60 PSI Pressure supervisory switch, shipping cost = $8.00 | 100.0% |
![]() | $70.00 | Condition is New – Open box, Potter PS40-2 Pressure Indicator Switch 10-60 PSI New Open Box Sprinkler Alarm, shipping cost = $6.07 | 100.0% |
![]() | $70.00 | Condition is New – Open box, Potter PS40-2 Pressure Switch High-Low Sprinkler, Flow Dry System Alarm Open Box, shipping cost = $6.07 | 100.0% |
![]() | $79.42 | Condition is New – Open box, SURPLUS NEW POTTER ELECTRIC SIGNAL CO PS40-2 Supervisory Pressure Switch, shipping cost = $ | 95.3% |
![]() | $70.00 | Condition is New – Open box, Potter PS40-2 Waterflow Pressure Switch Nos 1340404 no Security Allen Wrench, shipping cost = $11.35 | 98.2% |
![]() | $84.99 | Top Pick! Condition is New – Open box, NEW Potter PS40-2 High/Low Pressure Switch 1340404 Sprinkler System OPEN BOX, FREE SHIPPING | 100.0% |
![]() | $94.05 | Condition is New – Open box, Potter PS40-2 Supervisory Pressure Switch, FREE SHIPPING | ![]() |
![]() | $100.00 | Condition is New – Open box, Potter PS40-2A Pressure Switch (Inv. 42539), FREE SHIPPING | 100.0% |
![]() | $109.00 | Condition is New – Open box, POTTER PS40-2A SUPERVISORY PRESSURE SWITCH PS40A 1340402, shipping cost = $9.02 | 100.0% |
![]() | $118.75 | Condition is New – Open box, Potter PS40-2 Supervisory Pressure Switch, FREE SHIPPING | ![]() |
![]() | $129.99 | Condition is New – Open box, Potter PS40-2 1340404 Pressure Switch, FREE SHIPPING | 100.0% |
![]() | $150.00 | Condition is New – Open box, Potter PS40-2 Waterflow Pressure Switch Nos 1340404, shipping cost = $11.35 | 98.2% |
![]() | $165.00 | Condition is New – Open box, Potter PS40-2 High/Low Pressure Indicator 10-60 PSI, shipping cost = $17.41 | 97.7% |
![]() | $175.00 | Condition is New – Open box, POTTER PS-40-2 "NEW OPEN BOX", shipping cost = $8.00 | 99.8% |
![]() | $234.44 | Condition is New – Open box, Potter PS40-2 High/low pressure switch, DPDT, shipping cost = $9.69 | 100.0% |
![]() | $423.00 | Condition is New – Open box, POTTER PS40-2A NSMP, FREE SHIPPING | 99.9% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $89.95 | Condition is New, Potter PS40-2 Pressure Switch with Two Sets SPDT - Same Day Shipping (SEALED), FREE SHIPPING | 100.0% |
![]() | $89.95 | Top Pick! Condition is New, Potter PS40-2 HighLow Pressure Switch DPDT 10.1A 125/250VAC 2A 30VDC 10-60PSI, shipping cost = $22.05 | ![]() |
![]() | $87.30 | Top Pick! Condition is New, NEW Potter Electric 1340408 PS40-2 High/Low Pressure Indicator / Switch, shipping cost = $27.12 | 100.0% |
![]() | $110.00 | Top Pick! Condition is New, PS40-2 POTTER High/Low Pressure Indicator, shipping cost = $6.99 | ![]() |
![]() | $108.95 | Condition is New, Potter PS40-2A Pressure alarm switch; NOS Brand New in sealed box, USA made, shipping cost = $14.95 | 100.0% |
![]() | $129.99 | Top Pick! Condition is New, Potter PS40-2 1340404 Pressure Switch, shipping cost = $5.75 | 100.0% |
![]() | $144.00 | Condition is New, POTTER PS40-2 PRESSURE SWITCH NSMP, FREE SHIPPING | 99.8% |
![]() | $144.00 | Condition is New, POTTER PS40-2 PRESSURE SWITCH NSMP, FREE SHIPPING | 99.8% |
![]() | $164.54 | Top Pick! Condition is New, 1pcs New POTTER PS40-2A FM/UL Pressure Switch 1340402 Fast delivery, FREE SHIPPING | 99.5% |
![]() | $167.07 | Condition is New, 1pcs New POTTER PS40-2A FM/UL Pressure Switch 1340402 Fast delivery, FREE SHIPPING | 99.9% |
![]() | $167.88 | Condition is New, 1PC PS40-2A Potter Brand New Good Quality, FREE SHIPPING | 100.0% |
![]() | $167.88 | Condition is New, 1PC PS40-2A Potter Brand New Good Quality, FREE SHIPPING | 99.4% |
![]() | $169.10 | Condition is New, 1PCS POTTER PS40-2A Wet Alarm Valve Pressure Switch, FREE SHIPPING | 100.0% |
![]() | $169.84 | Top Pick! Condition is New, 1pcs New POTTER PS40-2A FM/UL Pressure Switch 1340402 Fast delivery, FREE SHIPPING | 99.4% |
![]() | $170.18 | Condition is New, 1pcs New POTTER PS40-2A FM/UL Pressure Switch 1340402 Fast delivery, FREE SHIPPING | 98.6% |
![]() | $173.41 | Condition is New, 1Pcs New For POTTER PS40-2A FM/UL Pressure Switch, FREE SHIPPING | 100.0% |
![]() | $174.45 | Condition is New, 1Pcs New For POTTER PS40-2A FM/UL Pressure Switch, FREE SHIPPING | 96.0% |
![]() | $174.58 | Top Pick! Condition is New, 1pcs New POTTER PS40-2A FM/UL Pressure Switch, FREE SHIPPING | 100.0% |
![]() | $175.00 | Condition is New, 1pcs New POTTER PS40-2A FM/UL Pressure Switch, FREE SHIPPING | 98.3% |
![]() | $176.70 | Condition is New, 1pcs New POTTER PS40-2A FM/UL Pressure Switch, shipping cost = $5.00 | 98.5% |
![]() | $175.00 | Condition is New, Potter PS40-2 Pressure Switch with Two Sets SPDT - Same Day Shipping (SEALED), shipping cost = $9.42 | 100.0% |
![]() | $198.00 | Condition is New, POTTER ELETRIC PS40-2 1340404 NSFS, FREE SHIPPING | 99.9% |
![]() | $211.25 | Condition is New, 1PCS POTTER PS40-2A Wet Alarm Valve Pressure Switch, FREE SHIPPING | 100.0% |
![]() | $191.86 | Condition is New, 1pcs New POTTER PS40-2A FM/UL Pressure Switch, shipping cost = $29.00 | 100.0% |
![]() | $214.00 | Top Pick! Condition is New, POTTER ELECTRIC PS40-2 / PS402 (BRAND NEW), shipping cost = $12.90 | 99.7% |
![]() | $262.50 | Condition is New, 1Pcs New For POTTER PS40-2A FM/UL Pressure Switch, FREE SHIPPING | 96.4% |
![]() | $235.13 | Condition is New, POTTER ELECTRIC PS40-2 / PS402 (BRAND NEW), shipping cost = $36.38 | 99.3% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $40.00 | Condition is Used, Potter PS40-2 Pressure Switch with Two Sets SPDT 1340404 USED, shipping cost = $9.02 | 100.0% |
![]() | $36.38 | Top Pick! Condition is Used, Potter 1340408 PS40-2 High/Low Pressure Indicator 15-60psi DPDT *NO COVER*, shipping cost = $24.72 | 100.0% |
![]() | $47.29 | Top Pick! Condition is Used, Potter PS40-2 Supervisory Switch Pressure Indicator, shipping cost = $24.72 | 100.0% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $58.20 | Condition is Neuf – Boîte ouverte, Potter ps40-2 pressure switch ips ipsb series 10-175 psi hi-low, shipping cost = $31.66 | 100.0% |



The Potter PS40-2 High/Low Pressure Switch Top is a versatile and essential component for various HVAC (Heating, Ventilation, and Air Conditioning) systems. Designed to ensure optimal system performance and safety, this switch top is engineered to provide reliable pressure switching functions for applications requiring both high and low pressure switches.
The Potter PS40-2 is a pneumatically operated switch top, which means it operates using compressed air instead of electricity. This makes it an excellent choice for environments where electrical connections are not readily available or where electrical safety is a concern. The switch top can accommodate a range of pressures, making it suitable for various applications in industrial and residential heating systems.
The top design of this high/low pressure switch includes two separately mounted pressure caps. Each cap is equipped with a Chamber Pressure Gauge, enabling easy identification of the pressure status at a glance. The precise graduations on these gauges allow for accurate pressure measurement within the system. Additionally, they provide a visual indication for both normal operation and switch actuation during pressure variation.
Constructed from robust materials, the Potter PS40-2 boasts excellent durability and resistance to harsh environments. Its brass body ensures minimal corrosion and long-lasting functionality. Furthermore, the switch top comes with Viton O-rings, which have excellent compressive strength, resistance to handling, chemicals, and heat. These O-rings guarantee a tight seal, ensuring that system fluids remain contained and that the switch functions reliably.
In terms of compatibility, the PS40-2 can be used with an extensive range of Potter pressure switches, enabling customers to tailor their switch setup to their specific HVAC requirements. By offering both high and low pressure switching functions within a single unit, the PS40-2 streamlines inventory management and installation while allowing for seamless integration into an HVAC system.
With its pneumatic operation, accuracy, and durability, the Potter PS40-2 High/Low Pressure Switch Top is an indispensable component for any HVAC professional or heating system enthusiast who demands total system control and performance.
Pros and Cons of Buying a Potter PS40-2 Cover High/Low Pressure Switch
The Potter PS40-2 cover high/low pressure switch is a popular automatic pressure switch used in various applications, including HVAC systems and pressure tanks. Before making a purchasing decision, it's essential to weigh the potential advantages and disadvantages of this product.
Pros:1. Automatic Operation: The Potter PS40-2 automatically switches between high and low pressure settings, ensuring optimal performance of the system and saving energy.
2. Durable Construction: This switch is made of heavy-duty materials, which provides excellent resistance to corrosion and wear, ensuring long-lasting functionality.
3. Easy to Install: The PS40-2 switch is easy to install and requires minimal wiring connections, making it a quick and straightforward addition to any system.
4. Wide Operating Range: The switch can handle a wide range of pressures (0-150 psi), providing versatility for various applications.
5. Self-cleaning: The internal diaphragm of the PS40-2 switch is self-cleaning, preventing the accumulation of dirt and debris that can potentially cause damage or malfunction.
Cons:1. Expensive: The Potter PS40-2 is more expensive compared to other pressure switches on the market, which may deter some buyers.
2. Limited Temperature Range: While the PS40-2 can handle a wide pressure range, its temperature range is more limited (between -40 F to 250 F), and users need to ensure that the temperature conditions are within this limit.
3. Not For Large Applications: This switch s size and capacity may not be suitable for large industrial applications that require high pressure and flow rates.
Conclusion:Ultimately, the Potter PS40-2 cover high/low pressure switch offers numerous advantages over traditional manual pressure switches. Its self-cleaning, automatic operation, wide operating range, and durability make it an ideal choice for residential and light commercial HVAC installations, where size, pressure, and temperature requirements are not extreme.
However, potential buyers should be prepared for the higher cost compared to other options and ensure the application's temperature conditions are within the accepted range (between -40 F to 250 F). In general, the benefits of the Potter PS40-2 outweigh the cons, making it a worthwhile investment for the appropriate use cases.
Recommendation:If you're in the market for a pressure switch for residential or light commercial HVAC applications with moderate to high pressures, the Potter PS40-2 is an excellent option to consider. Its automatic operation, durability, and self-cleaning features provide optimal performance and energy savings while minimizing maintenance needs.
Details:
Potter PS40-2 replacement cover/ top only.
specifications indusswitch:
- brand: Potter
- mpn: Ps40-2
- part type: Pressure Cover Switch Top
- mounting style: Screw
- unit type: Unit
- color: Red
- fuse type: Switch
- compatible wire gauge: Awg
- features: Replacement Conver
- unit quantity: 1 Replacement Cover Only
shipping indusswitch:
- service: usps ground advantage, usps priority mail
- transit: 6-13 days
- type: fixed
- class: standard, expedited
- carrier: usps
general indusswitch:
- category: Business & Industrial > Electrical Equipment Supplies > Pressure Switches
returns indusswitch:
- policy: no returns
payments indusswitch:
- wallet: paypal
- credit card: visa
- other
offer indusswitch:
- in stock #: 5
- prices: $36.38–$423.00
- item condition:
- New – Open box
- New
- Used
- Neuf – Boîte ouverte
- best offers: true
- availability: in stock
- started: december 26, 2024
- options: ship-to-home
- sold #: 22
seller indusswitch:
- city: west jordan, utah
- rating: 97.7%
- # reviews: 308









































