Live Voltage 3-Phase Monitor

The Ringway Live Voltage Monitor (TVLVDA3) is a voltage monitoring system that indicates the presence of 3-phase AC voltage, over a range from the nominal supply level (refer to ordering information for options) down to 10% of the system voltage. A proprietary three-phase transformer provides full galvanic-isolation for the system and allows safe m...

Features

Simple, robust and functional.
Class II SELV safety isolating transformer provides full galvanic isolation from monitored lines.
Indicates presence of voltage from 10% - 110% system voltage - 415/1100VAC (see order options)
Series DC blocking allows for insulation resistance testing to 1kV
No bulky, expensive fusing required due to internal fusing and double insulated input design.
Redundant LED indication for each phase (A,B,C) as well as system health status (STATUS).
Indicator designed to maintain at least IP55 on the enclosure it is installed.

Applications

The Live Voltage Monitor is designed for applications that require confirmation of isolation either visually or by upstream monitoring equipment. The transformer will typically be mounted on the load side of circuit breakers or contactors to confirm successful isolation of the equipment supply.

Specification

Nominal System Voltage

415V or 1100V ph-ph

No of Phases

Fault Level (max)

Internally fused to 50kA

Phase Current (nom)

45mA (415V) 12mA (1100V)

Phase Detection Threshold

10% nominal system voltage

24V Power Supply

12 – 24V

Power Supply Current

150mA

Indication

Phase A, B, C – Red LED Status – Green/Amber LED

Operating Temperature

-5 to 40 deg C

Dimensions

Indicator: Ø 45 x 10mm (external); M32 x 1.5 – 14 long (thread)
Transformer: 190mm x 75mm x 75mm
Relay: 22.5 (W) x 99 (L) x 114.5 (H) mm

Ordering Information

Select product(s) for project list, then add to list.

Product name	Product number
Live Voltage Monitor (415V)	TVLVDA3_04
Live Voltage Monitor (1100V)	TVLVDA3_11
Live Voltage Monitor – Transformer Only (415V)	TVLVDA3_TX04
Live Voltage Monitor – Transformer Only (1100V)	TVLVDA3_TX11
Live Voltage Monitor – Control Relay Only	TVLVDA3_CTL
Live Voltage Monitor – Indicator Only	TVLVDA3_IND

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Resources and Downloads

Brochure

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