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Minilec Phase Failure Relays VPG D1

Minilec Phase Failure Relays VPG D1 Specification

Contact Form
1 C/O (SPDT)

Coil Power
Approx. 2.5VA

Dielectiric Strength
2kV for 1 min. between output and supply terminals

Ambient Temperature
-10C to +55C

Coil Voltage
Same as rated voltage (415V AC)

Protect Feature
Phase failure, phase sequence, under/over voltage protection

Contact Material
Silver alloy

Power Consumption
Less than 3VA

Working Temperature
-10C to +55C

Contact Resistance
Below 50 m

Mechanical Life
Over 1,000,000 operations

Product Type
Phase Failure Relay

Insulation Resistance
More than 100 M at 500V DC

Theory
Electromagnetic

Usage
3 Phase Motor Protection

Contact Load
5A at 250V AC

Operate Time
Less than 200 ms

Terminal Type
Screw Terminal

Rated Voltage
415V AC

Supply Terminal
L1, L2, L3

Size
35mm Module

Color
Grey

Dimension (L*W*H)
85mm x 35mm x 65mm

Weight
Approx. 120g

Storage Temperature
-20°C to +70°C

Mounting Type
DIN Rail Mounting

Standards Compliance
IS/IEC 60255

Frequency
50/60 Hz

Response Time
Within 1.2 seconds

Trip Indication
Visual (LED) & Relay Output

Output Indication
LED Indicator

Number of Poles
1 Pole

Application
Industrial Panels, Motor Protection, Pump Panels

Enclosure Material
Flame Retardant ABS

Reset Type
Automatic

About Minilec Phase Failure Relays VPG D1

Minilec Phase Failure Relays

OVERVIEW :-

	Single Phasing,
	Reverse Phasing,
	Unbalanced Supply
	Auto Reset,
	1 CO output contact
	Suitable for any HP/kW rating Submersible pumps
	Low water level guard for dry running protection

TECHNICAL SPECIFICATION :-

Supply Voltage

System	:	415 V AC ± 20% 50 Hz ± 3%
Auxillary	:	Built-in

Output Contacts		:	1 CO

Trip Setting(Volts)
	Phase Sequence	:	Yes
	Phase Unbalance	:	40V ± 6V (fixed)

Trip Time Delay

	On Phase Failure/ Unbalance	:	3.5 sec. ± 1.5 sec.
	For level sensing	:	3.5 sec. ± 1.5 sec.

Resetting Mode		:	Auto Reset

Weight		:	300 gms.

Dimensions (mm)

Overall (L x W x D)	:	76 x 30.5 x 117.5
Mounting (L x W)	:	68 centre to centre / Panel Mounting & 35 mm rail Mounting

Note:

	Wherever not specified Contact Rating : 5A @ 230 V AC (resistive)
	* Available on request.

APPLICATION :-

Suitable for 3 Ph. equipments
	Agricultural Pump Starters,
	Open well Pumps

Comprehensive Motor and Panel Protection

The VPG D1 relay safeguards three-phase motors and panels by monitoring critical parameters like phase failure, phase sequence, and under/over voltage conditions. Its rapid detection capability, coupled with both visual and relay output indications, ensures immediate action, reducing the risk of equipment damage.

Reliable and Durable Construction

Built with a flame retardant ABS enclosure, the VPG D1 is engineered for durability and safety. With a mechanical life of over 1,000,000 operations and insulation resistance exceeding 100 M, it is well-suited for tough industrial environments where reliability is essential.

User-Friendly Installation and Operation

Featuring easy DIN rail mounting and screw terminals, installation is straightforward. The devices automatic reset and clear LED status indicators allow for effortless operation and monitoring, supporting efficient maintenance and uninterrupted workflow.

FAQs of Minilec Phase Failure Relays VPG D1:

Q: How does the Minilec VPG D1 Phase Failure Relay protect three-phase motors?

A: The VPG D1 continuously monitors supply voltage conditions and detects issues like phase failure, incorrect phase sequence, or abnormal voltage levels. Upon detecting faults, it trips quickly (in under 200 ms), provides visual LED indication, and activates relay output to disconnect the load, thus preventing motor damage.

Q: What is the installation process for this relay, and where should it be mounted?

A: The relay is designed for DIN rail mounting, which allows for easy setup in industrial control panels, motor protection panels, or pump panels. It connects using screw terminals labeled L1, L2, L3 for supply connection, ensuring secure and reliable integration into standard panel layouts.

Q: When will the relay reset after a phase fault, and is manual intervention needed?

A: This relay comes with an automatic reset feature, which means it will automatically resume operation once the monitored conditions return to normal. There is no need for manual resetting after faults are cleared.

Q: What are the ambient and operational temperature ranges for reliable usage of the VPG D1?

A: The relay reliably operates in ambient and working temperatures between -10C and +55C and can be stored safely between -20C and +70C, making it suitable for harsh industrial settings in India and beyond.

Q: How does the LED indication system benefit users during operation and troubleshooting?

A: LED indicators provide clear and immediate feedback of the devices output and trip status, enabling quick identification of faults or operational status. This visual indication simplifies troubleshooting and minimizes downtime in operation.