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Minilec Phase Failure Relays S2 VMR2

Minilec Phase Failure Relays S2 VMR2 Specification

Protect Feature
Phase failure, phase sequence, phase unbalance

Contact Resistance
< 100 m

Coil Power
Approx. 2VA

Contact Form
SPDT

Power Consumption
Approx. 2 VA

Contact Material
Silver Alloy

Mechanical Life
Over 10 million operations

Working Temperature
-10C to +55C

Dielectiric Strength
2kV, 50Hz for 1 min

Coil Voltage
Same as rated supply voltage

Ambient Temperature
-10C to +55C

Product Type
Phase Failure Relay

Insulation Resistance
>100 MOhm at 500V DC

Theory
Electromagnetic Relay

Usage
Industrial applications for phase protection

Contact Load
5A at 230V AC / 28V DC

Operate Time
Less than 200ms

Terminal Type
Screw Terminals

Rated Voltage
415V AC

Supply Terminal
L1, L2, L3

Size
35mm DIN Rail Mount

Color
White

Dimension (L*W*H)
78 x 22.5 x 90 mm

Weight
Approx. 120g

Frequency
50/60Hz

Housing Material
Flame Retardant Plastic

Panel Cutout
DIN standard

Mounting Type
DIN Rail Mountable

Relay Output
1 C/O (Change Over)

IP Rating
IP20

Response Time
<200ms

Status Indication
LED Indicators for phase status

Number of Phases
3

About Minilec Phase Failure Relays S2 VMR2

Minilec Phase Failure Relays S2 VMR2

Overview:-

	Microcontroller design,
	SMD Technology,
	Phase Failure, Unbalance,
	Phase Sequence, under voltage,
	Over Voltage, Auto reset,
	Fixed Unbalance setting,
	Fixed UV/OV settings,
	2 CO output relay

Technical Specification:-

Supply Voltage

100-110-120 / 220-230-240 / 380-415-440V AC -25+20%,

System	:	48-63 Hz, Selectable by Front Knob
Auxillary	:	Built In (from 3 Phase)

Output Contacts		:	2 CO

Trip Setting(Volts)
	Phase Sequence	:	Yes
	Phase Unbalance	:	10% (Fixed) ± 10%

Under Voltage	For 380-440V AC For 220-240V AC For 100-120V AC	± 20% (Fixed)
Over Voltage	For 380-440V AC For 220-240V AC For 100-120V AC

Trip Time Delay

	On Phase Failure	:	2 - 5 Sec. (Fixed) / RP-Instant
	On UV/OV

Resetting Mode

Auto Reset


Weight	:	100 gms.(Approx)

Dimensions (mm)

Overall (L x W x D)	:	90 x 35 x 60
Mounting (L x W)	:	35 mm Rail Mounting

Note:

Wherever not specified Contact Rating : 5A @ 230 V AC (resistive)

* CE marked products available on request.

S2VMR2 S2VMR2

Application:-

Suitable for monitoring 3 Ph. System supply from MAINS & used by motor load -
	AC & R Chiller compressor motors.
	AHU Fan /Pump Motors
	Machinery using multiple small motors.
	MAIN powers supply distribution panel board.
	DG Set application
	UPS
	Submersible Pumps
	Hoist & Crane

Reliable Protection for Three-Phase Systems

With advanced protection features against phase failure, reverse sequence, and unbalance, the Minilec S2 VMR2 relay ensures optimal operation and longevity for industrial equipment. Its fast response time and clear LED indicators make it effortless to detect and respond to supply anomalies, reducing downtime and enhancing safety on the shop floor.

Effortless Installation and Integration

Designed for DIN rail mounting, the S2 VMR2 fits seamlessly into standard panel configurations, making upgrades or replacements hassle-free. The screw terminals and standardized dimensions streamline the wiring process, while the robust build and flame-retardant plastic housing guarantee safe, long-term operation.

FAQs of Minilec Phase Failure Relays S2 VMR2:

Q: How does the Minilec S2 VMR2 phase failure relay protect industrial equipment?

A: The relay continuously monitors all three phases for issues like phase failure, incorrect phase sequence, and phase unbalance. If any fault is detected, the relay triggers its output within 200ms, alerting the system and isolating equipment to prevent potential damage or downtime.

Q: What is required for installing the S2 VMR2 relay in a control panel?

A: The relay mounts directly onto a 35mm DIN rail, fitting within standard panel cutouts. It features screw terminals for secure connection to supply terminals L1, L2, and L3, and requires a rated supply voltage of 415V AC for operation. Its compact size (78 x 22.5 x 90 mm) makes it suitable for most industrial panels.

Q: When will the LED indicators display phase faults on the relay?

A: The built-in LED indicators provide real-time status for each phase. If theres a phase failure, wrong phase sequence, or phase unbalance, the corresponding LEDs instantly change status, allowing for immediate fault identification and timely intervention.

Q: Where can the Minilec Phase Failure Relay S2 VMR2 be deployed?

A: These relays are ideal for industrial applications across India, where three-phase protection is essential. Typical uses include motor protection, control panels, HVAC systems, and any equipment dependent on stable three-phase power.

Q: What are the benefits of using a phase failure relay with a fast response time?

A: A relay with less than 200ms response time, such as the Minilec S2 VMR2, minimizes risk of equipment malfunction or damage by reacting almost instantly to phase issues. This rapid intervention helps maintain process continuity and extend machinery lifespan.

Q: How durable is the Minilec S2 VMR2 in industrial environments?

A: The relay is built with flame-retardant plastic and an IP20 housing, offering long-term mechanical life of over 10 million operations, wide temperature tolerance, and strong resistance to dust and accidental contact, ensuring reliable performance in tough conditions.

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