APPLE AUTOMATION AND SENSOR

Mumbai, India gst GST No.27ACRPG0717F1ZQ

Keller Pressure Transmitters

(3 products available)

Introducing our high-performance Keller Pressure Transmitters, including the superb Keller LEO-2, impeccable Keller PA-21Y, and outstanding Keller PR-23RY. These transmitters offer highly accurate measurements, reliable performance, robust construction, easy installation, and precise monitoring capabilities, making them ideal for various industrial applications. With a supply ability covering All India and export to Asia, our over 16.0 years of experience ensures top-notch quality and service. Compare and buy now before limited stock runs out, or customize according to your specific requirements. Trust Keller Pressure Transmitters for unmatched quality and performance in pressure sensing technology.

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Keller PA-21Y
  • Keller PA-21Y

Keller PA-21Y

3400 INR/Piece

Minimum Order Quantity : 1 Pieces

Weight Approx. 150g

Temperature Range -10A C to +80A C

Stoke 25mm

Size Standard

Response Time a 20ms

Rated Voltage 250V AC

Protection Level IP65

Product Type Limit Switch

Operating Temperature -10A C to +80A C

Number of Module 1

No Of Poles Single

Mounting Type Panel Mount

Mechanical Life more than 1,000,000 operations

Max. Voltage 250V AC

Max. Current 10A

Material Plastic & Metal

Insulation Resistance a Y100MIC (DC500V)

Finish Type Matte

Current Rating 10A

Contact Resistance a 25mIC (initial)

Color Gray & Black

Circuit Type SPDT

Automation Grade Automatic

About this product

KellerPA-21Y - Dealer, Supplier

Weare dealer and supplier of Keller PA-21Y in India, Mumbai, Delhi,Ahmedabad, Chennai, Kolkata, Pune, Nashik, Aurangabad, Nagpur, Vapi,Silvassa, Surat, Vadodara, Rajkot, Gandhidham, Morbi, Indore, Bhopal,Faridabad, Ghaziabad, Noida, Gurgaon, Coimbatore, Bangalore,Hyderabad, Kanpur, Goa, Visakhapatnam, Cochin, Ernakulam, Ludhiana,Chandigarh, Baddi, Dehradun, Sangli, Satara, Ichalkarnji, Solapur,Kupwad, Kolhapur, Pimpri, Chinchwad, Jalgaon, Surat, Baroda, Morbi,UAE, Bangladesh, Nepal, Bhutan, Dubai, Saudi Arabia, United ArabEmirates, Abu Dhabi, Bahrain, Qatar, Muscat, Oman, Sri Lanaka, SouthAfrica, Myanmar, Thailand, Vietnam, Jakarta, Indonesia. We areDealer, Supplier of Keller PressureTransmitter, Pressure Transducer.



Durable Design for Demanding Applications

Constructed with reinforced polycarbonate and finished in matte gray and black, the PA-21Y is engineered to withstand tough industrial environments. Its IP65 protection guards against dust and water spray, making it suitable for use in varied manufacturing and automation systems across India. The contact system delivers consistent performance, thanks to high-grade silver alloy and low initial contact resistance.


Reliable and Versatile Performance

Supporting currents up to 10A and voltages of 250V AC or 125V DC, the Keller PA-21Y is ideal for a wide array of applications. Its rapid response time, broad temperature range, and ability to operate in humid conditions ensure dependability. Ideal for use by system integrators, machine builders, and automation solution providers.


Effortless Installation and Operation

With easy-to-access screw terminals and standardized panel mount sizing, installation of the PA-21Y is efficient for fabricators, electricians, and service providers. The spring plunger actuator and single module design enable precise, responsive operation, streamlining process control throughout industrial workflows.

FAQs of Keller PA-21Y:


Q: How is the Keller PA-21Y installed in industrial panels?

A: The PA-21Y is designed for panel mounting using standard cutouts. Its screw terminal connections facilitate a secure and straightforward installation process for electricians and panel builders.

Q: What benefits does the reinforced polycarbonate housing provide?

A: Reinforced polycarbonate delivers excellent impact resistance and durability, ensuring continued performance in harsh industrial settings. It also contributes to the switchs IP65 protection level against dust and moisture.

Q: When should the PA-21Y switch be considered for use in manufacturing?

A: The switch is ideal for environments requiring frequent actuation, high reliability, and protection from contaminants, such as automated production lines, machinery panels, and industrial control systems.

Q: Where can the Keller PA-21Y be sourced in India?

A: You can procure the PA-21Y through Kellers authorized dealers, distributors, importers, and wholesale suppliers throughout India. It is available from various industrial automation solution providers.

Q: What is the operational process of the spring plunger actuator type?

A: The spring plunger actuator enables snap-action switching when pressed, promptly changing the contact from one throw to another in the SPDT configuration, ensuring reliable circuit control even in repetitive applications.

Q: How does the PA-21Y ensure electrical safety and reliability?

A: With a high insulation resistance (100M at DC500V), low initial contact resistance (25m), and silver alloy contacts, the PA-21Y provides robust electrical isolation and dependable conductivity, minimizing operational hazards.

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Keller LEO-2
  • Keller LEO-2

Keller LEO-2

3200 INR/Piece

Minimum Order Quantity : 1 Pieces

Weight approximately 140 g (depending on model)

Temperature Range -10 A C to +60 A C

Size Housing diameter approx. 58 mm, Display 4.5 digit

Response Time < 10 ms

Rated Voltage 3 V battery (Lithium) CR2430

Protection Level IP65 (front side)

Product Type Digital Pressure Gauge

Operating Temperature -10 A C to +60 A C

Number of Module Single

Mounting Type Direct mount, G1/4 male

Mechanical Life Over 10 million cycles

Max. Voltage 30 VDC

Max. Current 8 mA

Material Stainless Steel (Housing), Polycarbonate (Display)

Insulation Resistance > 100 MIC @ 500 VDC

Finish Type Matt finish stainless steel

Color Black/Silver

Automation Grade Automatic

About this product

KellerLEO-2 - Dealer, Supplier

Weare dealer and supplier of Keller LEO-2 in India, Mumbai, Delhi,Ahmedabad, Chennai, Kolkata, Pune, Nashik, Aurangabad, Nagpur, Vapi,Silvassa, Surat, Vadodara, Rajkot, Gandhidham, Morbi, Indore, Bhopal,Faridabad, Ghaziabad, Noida, Gurgaon, Coimbatore, Bangalore,Hyderabad, Kanpur, Goa, Visakhapatnam, Cochin, Ernakulam, Ludhiana,Chandigarh, Baddi, Dehradun, Sangli, Satara, Ichalkarnji, Solapur,Kupwad, Kolhapur, Pimpri, Chinchwad, Jalgaon, Surat, Baroda, Morbi,UAE, Bangladesh, Nepal, Bhutan, Dubai, Saudi Arabia, United ArabEmirates, Abu Dhabi, Bahrain, Qatar, Muscat, Oman, Sri Lanaka, SouthAfrica, Myanmar, Thailand, Vietnam, Jakarta, Indonesia. We areDealer, Supplier of Keller PressureTransmitter, Pressure Transducer.



High-Visibility Measurement

Equipped with a large 4.5 digit LCD and 7.5 mm characters, the Keller LEO-2 provides immediate, precise pressure readings. The selectable unit feature allows users to switch between bar, psi, MPa, and more, making it versatile for various industry standards. Its ergonomic display is complemented by a compact, rugged build.


Precision Engineering for Demanding Tasks

Designed for accuracy, the LEO-2 delivers results with a standard deviation of 0.2% FS (and an optional 0.1% FS). The stainless steel housing, direct G1/4" mounting, and IP65-rated front allow it to operate reliably even in harsh industrial settings, all while supporting a mechanical life of more than 10 million cycles.


Efficient and User-Friendly Operation

With features like zero/tare and peak hold, users can easily calibrate and monitor dynamic pressures. The automatic operation, up to two-year battery life, and quick response time (<10 ms) enhance both convenience and productivity. Installation is straightforward thanks to its direct mount design and compact size.

FAQ's of Keller LEO-2:


Q: How do I switch between pressure units on the Keller LEO-2?

A: To change the displayed units on the Keller LEO-2, simply navigate the device's menu and select your preferred measurement unit (bar, psi, MPa, etc.) using the user button. This flexibility allows adaptation to various industry requirements.

Q: What is the process for installing the Keller LEO-2 pressure gauge?

A: Install the Keller LEO-2 by directly mounting it onto the pressure port using the standard G1/4" male connection. Ensure compatibility with your system's thread type, and request alternate connections if required. Its compact design and light weight simplify setup.

Q: When should the battery of the Keller LEO-2 be replaced?

A: The battery, a 3 V CR2430 lithium cell, lasts up to two years depending on usage frequency. Replace the battery when the display dims or fails to turn on to maintain measurement reliability.

Q: Where is the Keller LEO-2 suitable for use?

A: The IP65-rated front and wide operating temperature range (-10C to +60C) make the Keller LEO-2 suitable for indoor and outdoor industrial environments, including factories, process plants, and on-site monitoring in India and beyond.

Q: What benefits does the peak hold feature provide?

A: Peak hold allows the Keller LEO-2 to capture and display the highest pressure value recorded during measurement. This feature is particularly beneficial for monitoring pressure spikes and ensuring system safety in dynamic processes.

Q: How does the zero/tare function aid during measurement?

A: The zero/tare function enables you to reset the pressure display to zero at any point, which simplifies the measurement of relative pressure changes and compensates for setup-related offsets.

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Keller PR-23RY
  • Keller PR-23RY

Keller PR-23RY

3200 INR/Piece

Minimum Order Quantity : 1 Pieces

Weight 20g (Approx.)

Temperature Range -40A C to +85A C

Stoke 2mm

Size 22.5mm x 10mm x 50mm (Approx.)

Response Time a 1ms

Rated Voltage 24V DC/AC

Protection Level IP67

Product Type Reed Relay

Operating Temperature -40A C to +85A C

Number of Module 1

No Of Poles 1

Mounting Type Panel Mount

Mechanical Life a Y10,000,000 operations

Max. Voltage 250VAC

Max. Current 5A

Material Plastic, Metal

Insulation Resistance a Y100MIC (at 500VDC)

Finish Type Matte

Current Rating 5A

Contact Resistance a 150mIC

Color Black & Red

Circuit Type SPST (Single Pole Single Throw)

Automation Grade Automatic

About this product

KellerPR-23RY - Dealer, Supplier

Weare dealer and supplier of Keller PR-23RY in India, Mumbai, Delhi,Ahmedabad, Chennai, Kolkata, Pune, Nashik, Aurangabad, Nagpur, Vapi,Silvassa, Surat, Vadodara, Rajkot, Gandhidham, Morbi, Indore, Bhopal,Faridabad, Ghaziabad, Noida, Gurgaon, Coimbatore, Bangalore,Hyderabad, Kanpur, Goa, Visakhapatnam, Cochin, Ernakulam, Ludhiana,Chandigarh, Baddi, Dehradun, Sangli, Satara, Ichalkarnji, Solapur,Kupwad, Kolhapur, Pimpri, Chinchwad, Jalgaon, Surat, Baroda, Morbi,UAE, Bangladesh, Nepal, Bhutan, Dubai, Saudi Arabia, United ArabEmirates, Abu Dhabi, Bahrain, Qatar, Muscat, Oman, Sri Lanaka, SouthAfrica, Myanmar, Thailand, Vietnam, Jakarta, Indonesia. We areDealer, Supplier of Keller PressureTransmitter, Pressure Transducer.



Versatile and Resilient Design

Designed to meet the rigorous demands of industrial automation, the PR-23RY relay features a sturdy matte-finish body, high insulation, and low contact resistance. Its compact size, panel-mounting capability, and protection against environmental factors ensure easy integration into control systems, whether indoors or outdoors.


Advanced Electrical Performance

With a switching capacity of up to 60W/125VA and a maximum voltage rating of 250VAC or 220VDC, the PR-23RY ensures reliable circuit control. Its fast response and release times, alongside a wide operating temperature range, enable dependable operation in rapidly changing industrial environments.

FAQ's of Keller PR-23RY:


Q: How is the Keller PR-23RY relay installed and mounted?

A: The PR-23RY is designed for panel mounting, allowing for straightforward installation in control panels. Simply fix the relay using the prescribed mounting slots, ensuring secure connections to match the 22.5mm x 10mm x 50mm size specifications.

Q: What are the main benefits of using the PR-23RY relay in automation systems?

A: The PR-23RY offers a long mechanical life (10 million operations), rapid response (1ms), and wide temperature tolerance (-40C to +85C). Its high switching capability and IP67 protection allow for reliable use in demanding industrial and automation applications.

Q: When should I select the PR-23RY relay for a project?

A: Choose the PR-23RY when you require a reliable, quick-acting relay with a 24V DC coil voltage, panel mounting, and robust performance in circuit switching up to 250VAC/220VDC and 5A currents. It is especially useful where environmental resistance is critical.

Q: Where can I use the PR-23RY relay?

A: The PR-23RY is suitable for deployment in a variety of environments, including industrial control panels, automation setups, and harsh outdoor or indoor applications, thanks to its durable design and IP67 rating.

Q: What materials are used in the PR-23RY relay construction?

A: The relay is constructed from a combination of high-grade plastic and metal, ensuring strength, dependable insulation, and lasting durability in rugged use scenarios.

Q: How does the PR-23RY perform under extreme conditions?

A: With vibration resistance between 10-55Hz (1.5mm amplitude), shock resistance up to 50G, and a wide operating temperature range, the PR-23RY delivers stable performance under mechanical or environmental stress.

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