Panel ohmmeter M419 (М-419, M419) for insulation monitoring of isolated-neutral networks up to 420 V
Country: Ukraine · Model: M419
Panel ohmmeter M419, often searched as М-419 or M419, continuously monitors insulation resistance of single-phase and three-phase AC networks with isolated neutral, at voltages up to 420 V and frequencies of 45–500 Hz.
- Network
- single-phase and three-phase AC with isolated neutral, up to 420 V
- Frequency
- 45–500 Hz
- Mounting
- panel, vertical position
- Monitoring
- continuous, under operating voltage
Technical specifications
| Network | single-phase and three-phase AC with isolated neutral, up to 420 V |
|---|---|
| Frequency | 45–500 Hz |
| Mounting | panel, vertical position |
| Monitoring | continuous, under operating voltage |
| Other spellings | М-419, M419, M 419 |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
The instrument works under network operating voltage, so insulation degradation shows during operation, not only in scheduled tests. This helps notice a problem before an accident. It is mounted in a panel in vertical position. It is used at mobile power stations and fixed installations, and in isolated-neutral networks, for example on ships and in mines. Such networks allow operation during a first earth fault, but only if insulation is monitored continuously. A megohmmeter is unsuitable, as it measures on a de-energized circuit. Spellings: М419, М-419, М 419, M419 (in Latin letters). All mean the same instrument.
How to choose
Choice depends on network type. M419 suits single-phase and three-phase AC networks with isolated neutral up to 420 V and 45–500 Hz. Earthed-neutral networks and measurement on a de-energized circuit need other instruments. Ask a USK ENERGY manager about version, kit and verification.
Request a price and lead time
Panel ohmmeter M419 (М-419, M419) for insulation monitoring of isolated-neutral networks up to 420 V. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
Are М419 and M419 the same instrument?
Yes. Entries М419, М-419, М 419 and M419 in Latin letters are found. They refer to the same panel ohmmeter.
Which networks is the M419 intended for?
Single-phase and three-phase AC networks with isolated neutral, up to 420 V and 45–500 Hz.
Can insulation be monitored without disconnecting the network?
Yes. The M419 works under operating voltage and continuously shows the insulation condition.
How is the M419 installed?
In a panel, in vertical operating position.
Where is the panel ohmmeter M419 used?
At mobile power stations and fixed installations, where insulation degradation must be noticed before an accident.
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REQUEST
Need a price, lead time or replacement?
Send us a request and we will confirm the configuration, lead time and delivery terms. We reply by email.