Siemens Building Technology 134-1451 Switch
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Siemens Building Technology 134-1451 Switch

Siemens Building Technology 134-1451 Switch

The Siemens 134-1451 is a high-performance pressure electric switch designed for commercial pneumatic control systems, specifically for operating electric heating loads or motors on fans, pumps, and small air compressors. Utilizing a heavy-duty DPST (Double-Pole, Single-Throw) snap-acting contact mechanism, this 134-1451 Siemens switch is configured as normally closed, opening when the air signal rises to the user-defined setpoint. With a wide adjustable differential range of 1.5 to 10 PSI and a setpoint range of 3 to 30 PSIG, it provides precise control for complex HVACR sequences. This industrial pressure switch is not position-sensitive, allowing for flexible mounting orientations, and features easily accessible screw terminals for streamlined field wiring. As a veteran-choice HVAC pressure controller, it manages high-inductive loads with a robust electrical rating, ensuring reliable pneumatic-to-electric signal conversion in protected environments. The Siemens 134-1451 switch is the standard for contractors needing to interface air pressure logic with line-voltage electrical circuits.

Key Benefits
  • Adjustable Precision: Features external scales for setpoint and differential adjustments, allowing on-site calibration for specific HVAC sequences.
  • Heavy-Duty Contact: Rated for high-amperage applications (up to 22A non-inductive at 120-277 Vac), reducing the need for intermediate relays.
  • Pneumatic Interfacing: Seamlessly converts a compressed air signal into an electrical action for fans, pumps, or pilot lights.
  • Installation Versatility: Can be mounted in any orientation using the included bracket, ideal for tight mechanical rooms.
  • Enhanced Reliability: Uses a non-metallic diaphragm for long-term durability against repeated cycles in pneumatic systems.
Common Questions

What is the maximum pressure rating for this switch?

The Siemens 134-1451 has a maximum operating pressure rating of 50 PSIG and integrates via a 1/8-inch NPT external thread connection.

How do I wire this for a normally closed application?

This specific model is factory-configured for normally closed (NC) operation; the circuit remains closed below the setpoint and opens upon pressure rise. Use the color-coded screw terminals provided for secure field wiring.

Can this be used outdoors?

No, this pneumatic-electric switch is designed for indoor use in areas protected from the weather to ensure the longevity of the diaphragm and electrical contacts.

This item is not eligible for free shipping.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.

$59.80

Original: $170.85

-65%
Siemens Building Technology 134-1451 Switch

$170.85

$59.80

Siemens Building Technology 134-1451 Switch

The Siemens 134-1451 is a high-performance pressure electric switch designed for commercial pneumatic control systems, specifically for operating electric heating loads or motors on fans, pumps, and small air compressors. Utilizing a heavy-duty DPST (Double-Pole, Single-Throw) snap-acting contact mechanism, this 134-1451 Siemens switch is configured as normally closed, opening when the air signal rises to the user-defined setpoint. With a wide adjustable differential range of 1.5 to 10 PSI and a setpoint range of 3 to 30 PSIG, it provides precise control for complex HVACR sequences. This industrial pressure switch is not position-sensitive, allowing for flexible mounting orientations, and features easily accessible screw terminals for streamlined field wiring. As a veteran-choice HVAC pressure controller, it manages high-inductive loads with a robust electrical rating, ensuring reliable pneumatic-to-electric signal conversion in protected environments. The Siemens 134-1451 switch is the standard for contractors needing to interface air pressure logic with line-voltage electrical circuits.

Key Benefits
  • Adjustable Precision: Features external scales for setpoint and differential adjustments, allowing on-site calibration for specific HVAC sequences.
  • Heavy-Duty Contact: Rated for high-amperage applications (up to 22A non-inductive at 120-277 Vac), reducing the need for intermediate relays.
  • Pneumatic Interfacing: Seamlessly converts a compressed air signal into an electrical action for fans, pumps, or pilot lights.
  • Installation Versatility: Can be mounted in any orientation using the included bracket, ideal for tight mechanical rooms.
  • Enhanced Reliability: Uses a non-metallic diaphragm for long-term durability against repeated cycles in pneumatic systems.
Common Questions

What is the maximum pressure rating for this switch?

The Siemens 134-1451 has a maximum operating pressure rating of 50 PSIG and integrates via a 1/8-inch NPT external thread connection.

How do I wire this for a normally closed application?

This specific model is factory-configured for normally closed (NC) operation; the circuit remains closed below the setpoint and opens upon pressure rise. Use the color-coded screw terminals provided for secure field wiring.

Can this be used outdoors?

No, this pneumatic-electric switch is designed for indoor use in areas protected from the weather to ensure the longevity of the diaphragm and electrical contacts.

This item is not eligible for free shipping.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.

Product Information

Shipping & Returns

Description

The Siemens 134-1451 is a high-performance pressure electric switch designed for commercial pneumatic control systems, specifically for operating electric heating loads or motors on fans, pumps, and small air compressors. Utilizing a heavy-duty DPST (Double-Pole, Single-Throw) snap-acting contact mechanism, this 134-1451 Siemens switch is configured as normally closed, opening when the air signal rises to the user-defined setpoint. With a wide adjustable differential range of 1.5 to 10 PSI and a setpoint range of 3 to 30 PSIG, it provides precise control for complex HVACR sequences. This industrial pressure switch is not position-sensitive, allowing for flexible mounting orientations, and features easily accessible screw terminals for streamlined field wiring. As a veteran-choice HVAC pressure controller, it manages high-inductive loads with a robust electrical rating, ensuring reliable pneumatic-to-electric signal conversion in protected environments. The Siemens 134-1451 switch is the standard for contractors needing to interface air pressure logic with line-voltage electrical circuits.

Key Benefits
  • Adjustable Precision: Features external scales for setpoint and differential adjustments, allowing on-site calibration for specific HVAC sequences.
  • Heavy-Duty Contact: Rated for high-amperage applications (up to 22A non-inductive at 120-277 Vac), reducing the need for intermediate relays.
  • Pneumatic Interfacing: Seamlessly converts a compressed air signal into an electrical action for fans, pumps, or pilot lights.
  • Installation Versatility: Can be mounted in any orientation using the included bracket, ideal for tight mechanical rooms.
  • Enhanced Reliability: Uses a non-metallic diaphragm for long-term durability against repeated cycles in pneumatic systems.
Common Questions

What is the maximum pressure rating for this switch?

The Siemens 134-1451 has a maximum operating pressure rating of 50 PSIG and integrates via a 1/8-inch NPT external thread connection.

How do I wire this for a normally closed application?

This specific model is factory-configured for normally closed (NC) operation; the circuit remains closed below the setpoint and opens upon pressure rise. Use the color-coded screw terminals provided for secure field wiring.

Can this be used outdoors?

No, this pneumatic-electric switch is designed for indoor use in areas protected from the weather to ensure the longevity of the diaphragm and electrical contacts.

This item is not eligible for free shipping.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.

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