Phase Failure Relays
Monitoring Relays
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Electronics Timers
Liquid Level Controllers

Voltage Sensing Phase Failure Relays

Voltage Sensing Phase Sequence Relay

Voltage Sensing Phase Failure Relays with Under and Over Voltage

Voltage Scanner

Phase Failure Relays

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Earth Fault Relays

Frequency Monitoring Relays

Earth Leakage Relays

Reverse Power Relay

Monitoring Relays

Voltage Monitoring Relays

Current Monitoring Relays

Ground Fault Monitoring Relays

Frequency Monitoring Relays

Power Monitoring Relays & CBCT

Microprocessor Based Motor Protection Relay

Winding Temperature Relay

Bearing Temperature Relay

Motor / Pump protection Relays

Microprocessor Based Motor Protection Relay

Winding Over – Temperature Protection Relays

On Delay Timers

Special Function Timers

Multifunction Timer

On Delay Timers

Special Function Timers

Cyclic Timers

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Alternating Relay

Liquid Level Controllers

Level Controllers – Conductive Liquids

Level Controllers – Non Conductive Liquids

Power Line Transducers And MFM
Automation Products
Alarm Annunciators
Products For Agri Sector

Voltage, Current, Frequency Transducers

Power Transducers

Isolation Transducers

Transducers Models

Booster Pump Controller

Twin AC Controller

Process/Plant Control and Automation

Twin AC Controller

Potential Free Inputs

Potential Inputs

Alarm Annunciator

Power Line Transducers And Multifunction Meter

D3 PTF1

Frequency transducer

Output (DC) single or dual

Accuracy 0.5%

Operations
The input frequency signal is scaled down through Interposing potential transformer. The scaled down signal is fed to a precision frequency to voltage Converter stage, its output is processed to provide DC Voltage/ Current proportional to Line Frequency.

Technical Data

Auxiliary Supply

Auxillary 24/48V DC+/-20%, Self Powered, 80-300VAC/ DC,50 Hz

Power Consumption

Power Consumption 3.5 VA - AC, 4 VA - DC

Input Value

I inFreq. Range 45 to 55 Hz/40-60 Hz/55-65 Hz/48-52Hz
V in63.5/110/240/415 V

DC Output (Single / Dual)

DC Output (Single / Dual) 0 - 1 mA, 0 - 10 mA, 0 - 20 mA, 4 - 20 mA, 0 - 5 V, 0 - 10V DC Other optional on request

No of Signal Output

No of Signal Output Single (Optional Dual Output)

Response Time

Response Time Less than 500 milliseconds

Input / Output isolation

Input / Output isolation Galvanic

Temperature

Temperature 0°C to + 55°C

Humidity

Humidity Up to 95% Rh non condensing

Dimensions (L x W x D) (mm)

Dimensions (L x W x D) (mm) 75 x 56.5 x 117.5

Weight

Weight 575 gms

Common Specifications

Output Load Resistance (Rout)

For Current Output Max. 10V/I out (Optional Max. 15V/Iout)
For Voltage Output10 Kohm (min.)

Output Ripple

Output Ripple Less than 0.5% of span (peak to peak)

Auxiliary Supply Burden

Auxiliary Supply Burden Less than 4 VA

Insulation Resistance

Insulation Resistance More than 100 Mohms at 500 V DC

Zero Span Adjustment

Zero Span Adjustment Optionally provided

Terminals

TerminalsSuitable for 2.5 sq.mm wires

Enclosure Type

Enclosure Type ABS Plastic, Ingress Protection IP40

IEC Standard

IEC Standard 60688