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SECURE Brand PT1 single-phase single-function Transducer


Compact, Configurable, and Cutting-Edge

The SECURE Brand PT1 single-phase single-function transducer is the ultimate solution for supply utilities and industrial applications that demand precision, reliability, and flexibility. This compact and site-configurable transducer is engineered to deliver accurate true-RMS measurements with exceptional response times, ensuring optimal performance and reliability in various environments.

Exceptional Performance and Accuracy

True-RMS Measurements

The PT1 transducer offers precise true-RMS measurements, ensuring that your readings are accurate and reliable, even under the most challenging conditions. This level of accuracy is essential for maintaining the integrity of your systems and operations.

Best in Class Response Time

With its best-in-class response time, the PT1 transducer quickly adapts to changes in input conditions, providing real-time data that is critical for timely decision-making and system management.

Versatile and Configurable

Long Range, Site-Configurable Inputs and Outputs

The PT1 transducer features long-range, site-configurable inputs and outputs, allowing you to customize the device to meet the specific needs of your application. This flexibility ensures that the transducer can be tailored to a wide range of scenarios, enhancing its utility and effectiveness.

Load-Independent Accuracy

Equipped with two load-independent, galvanically-isolated analogue outputs, the PT1 transducer maintains high accuracy regardless of the load. This feature guarantees consistent and dependable performance, making it an ideal choice for various industrial and utility applications.

Advanced Diagnostic Capabilities

Diagnostic LEDs

The PT1 transducer is designed with diagnostic LEDs that provide visual indicators of the device’s status, making it easier to monitor and troubleshoot. These LEDs help ensure that your system is always operating at peak performance and can quickly alert you to any issues that may arise.

Space-Efficient Design

Compact Footprint

Despite its advanced capabilities, the PT1 transducer boasts a compact footprint, making it easy to integrate into existing systems without requiring significant space. This design feature is particularly advantageous for applications where space is at a premium.


The SECURE Brand PT1 single-phase single-function transducer is a versatile, accurate, and reliable solution for supply utilities and industrial applications. Its compact design, exceptional response time, and site-configurable inputs and outputs make it an indispensable tool for ensuring precise measurements and optimal system performance. Whether you need to monitor complex industrial processes or maintain the integrity of supply utilities, the PT1 transducer is the best choice for your needs.

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Measurement functions (measurands)
AC/DC voltage
Nominal input (Un) 57.7 V to 415 V
Measuring range 0 to 130% of U(up to 500 V)
Measurement frequency 50/60 Hz ± 5%
Burden ≤0.2 VA
Maximum overload voltage 1.3 x Un continuously
2 x Un for 1 s, with up to 10 repetitions at 10 s intervals
Scale factor 0.8 to 1.3 x Un (up to 500 V)
For self-powered variant (AC/DC Voltage)
Measurement range 80 to 276 V AC/DC
Measurement range 0 to 110% Un
Burden ≤6VA, 3W with one output at 750 Ω
≤7VA, 3.5W with two outputs at 750 Ω each
AC current
Nominal input (In) 1 A to 5 A
Measuring current range 0 to 150% of In
Scale factor 0.6 to 1.5 x In
Burden ≤0.2 VA
Maximum overload current 2 x In continuously
20 x In for 1 s, with up to 10 repetitions at 100 s intervals
DC current
Measurement input range -20-0-(+20) mA directly, or -300-0-(+300) mV through shunt
Nominal input voltage (Un) 57.7 V to 415 V
Input voltage range 0 to 130% of U(up to 500 V)
Nominal input current (In) 1 A to 5 A
Input current range 0 to 150% In
Measurement frequency 50/60 Hz (±5%)
Scale factor 0.5 to 1.5 of Un x In (at unity power factor)