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Minilec Phase Failure Relays S2 VMR1

Minilec Phase Failure Relays S2 VMR1 Specification

Protect Feature
Phase failure, phase sequence, phase unbalance, under and over voltage protection

Power Consumption
< 2VA

Working Temperature
-10C to +55C

Contact Form
SPDT

Coil Voltage
Same as Rated Voltage

Ambient Temperature
-10C to +55C

Contact Resistance
50 m (initial)

Dielectiric Strength
2kV AC for 1 min between contacts and coil

Coil Power
< 2VA

Mechanical Life
More than 10 million operations

Contact Material
Silver Alloy

Product Type
Phase Failure Relay

Insulation Resistance
>= 100 M at 500 VDC

Theory
Electromagnetic Relay

Usage
Phase Failure and Sequence Monitoring in electrical systems

Contact Load
5A at 250VAC Resistive

Operate Time
Approximately 200ms

Terminal Type
Screw type

Rated Voltage
415V AC (Three Phase) / 230V AC (Single Phase)

Supply Terminal
L1, L2, L3, N

Size
Compact, Standard DIN rail mountable

Color
White and Blue body

Dimension (L*W*H)
80mm x 22.5mm x 94mm (approx.)

Weight
120g (approx.)

Operating System
Android

Remote Battery Type
AAA

Smart TV Features
Built-in WiFi, Screen Mirroring

Refresh Rate
60 Hz

USB Ports
2

Sleep Timer
Yes

Viewing Angle
178

About Minilec Phase Failure Relays S2 VMR1

Minilec Phase Failure Relays S2 VMR1

Overview:-

Suitable for following applications:
	Inverter
	UPS
	Rectifier Panel
	Battery Charger
	3 Phase AC Panel
	DG Set Panel

Technical Specification:-

Supply Voltage

System	:	100-120/220-240/380-440V AC, -25+20% 48-63 Hz
Auxillary	:	Built-in

Output Contacts		:	2 CO

Trip Setting(Volts)
	Phase Sequence	:	Yes
	Phase Unbalance	:	4% to 20% (variable) ± 5% of full scale

Trip Time Delay

	On Phase Failure/ Unbalance	:	4 sec. ± 1 sec./ RP-Instant
	For Level Sensing	:	NA

Resetting Mode		:	Auto / Manual Reset(Selected by front push button)

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)

* Available on request.

Application:-

Suitable for following applications:
	Inverter
	UPS
	Rectifier Panel
	Battery Charger
	3 Phase AC Panel
	DG Set Panel

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Advanced Phase Protection for Electrical Panels

Minilec S2 VMR1 Phase Failure Relay ensures reliable performance under diverse electrical conditions. Designed for professional use in industrial and commercial settings, it protects equipment from phase loss, incorrect sequences, voltage unbalance, and abnormal voltages. Its automatic reset and clear LED indicators improve system uptime and make fault diagnostics straightforward, increasing safety and convenience during operation.

Simple Installation with DIN Rail Mounting

The compact housing and standard 22.5mm DIN rail mounting simplify integration within existing panels. Screw-type terminals offer secure and accessible wiring for quick setup, while a weight of just 120g optimizes space without compromising durability. Its robust insulation and high mechanical life ensure longevity in challenging environments.

FAQs of Minilec Phase Failure Relays S2 VMR1:

Q: How does the S2 VMR1 relay detect and respond to phase faults?

A: This relay monitors input phases (L1, L2, L3, N) for faults such as phase failure, sequence errors, unbalance, and under/over voltage. When an abnormality is detected, the relay activates and provides indication via LEDs. Once normal conditions return, it automatically resets.

Q: What is the process to install the Minilec S2 VMR1 relay in an electrical panel?

A: To install the relay, mount it securely on a standard DIN rail, then connect the supply terminals (L1, L2, L3, N) using screw-type terminals. Follow the provided wiring diagram to ensure accurate phase monitoring and proper output relay connection.

Q: Where can the S2 VMR1 relay be used?

A: The relay is ideal for use in industrial and commercial electrical panels, distribution boards, and machinery control systems where reliable phase and voltage monitoring is essential for protection and uptime.

Q: What are the benefits of using this phase failure relay?

A: Minilec S2 VMR1 enhances safety, prevents costly equipment damage, and reduces downtime by providing timely disconnection during phase failures or voltage issues. Its automatic reset and LED indicators streamline troubleshooting and maintenance processes.

Q: When will the relay reset after a detected fault?

A: The relay resets automatically when the system resumes normal three-phase or single-phase conditions, minimizing manual intervention and ensuring continuous protection.

Q: What features contribute to the durability and longevity of the S2 VMR1?

A: Constructed from high-grade flame retardant plastic and designed with robust internal components, the relay boasts over 10 million mechanical operations, high insulation resistance, and a wide operating temperature range (-10C to +55C), ensuring reliable performance over time.

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