Logo

Logo

Information material

  • Downloads

Latest news

  • Latest news

  • Events

  • Newsletter registration

Contact persons

  • Sales partner US

Immediate assistance

  • Technical Support

  • Contact US

  • Downloads

  • Service ticket



© 2010 - 2025 Janitza electronics GmbH. All rights reserved.

Cookies

  • Choose your industry
    • Data centers

      Efficiency and high availability for critical infrastructure

    • Critical Infrastructure

      Reduce operating costs and environmental footprint

    • Power utilities

      Measurement at all levels

    • Manufacturing

      Measurement technology for efficient production

  • Transparent energy consumption
    • Reduce CO₂ footprint

      Monitoring and lowering emissions

    • Energy management

      Reduce energy consumption and increase energy efficiency

    Reliable energy supply
    • Residual current monitoring

      Ensure high availability and increase fire protection

    • Power quality

      Prevent breakdowns, fires, and excessive wear on equipment

  • Transparent energy consumption
    • Energy analyzerUMG 800

      Power meters for complete transparency of energy flows

    Product: Reliable energy supply
    • Power analyzer

      Expandable power analyzers for monitoring energy consumption, power quality, and residual currents

    • Power quality analyzer

      Power Quality Analyzer for highly accurate power quality recording

    • Residual current monitoring devices

      Measurement devices for recording and analyzing residual currents

    More
    • GridVis®9.2

      Power Grid Monitoring Software

    • Current transformer
    • Accessories
    • The Janitza product portfolio

      Janitza offers an extensive product portfolio. You will receive an individual solution for every requirement.

      Show all products
  • Services
    • International network
    Information
    • Downloads
    • Knowledge base
    • Product discontinuations
    • Product registrations
    • Software Addons
    Insights & Tools
    • Whitepaper
    • Current transformer tool
    • Application reports
    Immediate assistance
    • Technical Support
    • Downloads
    • Service ticket
  • Contact
    • Contact US
    • Technical Support
    • Germany
    • International
    Latest
    • News
    • Events
    • WebinarsNew
    Career
    • Overview
    Company
    • About Janitza
    • CO₂ neutrality
    • Our portfolio
    • Certification & standards
Choose your language
  • Deutsch DE
  • English (INT) EN
  • Español ES
  • English (US) US

Suitable products

fehlerstrom-en

HOW DOES RESIDUAL CURRENT MONITORING WORK?

In residual current monitoring or RCM, all three phases and the neutral conductor are passed through a summation current transformer. The summation current is ideally zero or close to zero.

If a residual current flows to ground, a residual current monitoring device detects this and can trigger an alarm or report it accordingly. Even slowly rising residual currents that are still too small to trigger alarms or fuses can be detected. This allows even insidious faults to be detected.

Titel RCM

RESIDUAL CURRENT MONITORING

Comprehensive residual current monitoring ensures high availability and increases fire protection. It is particularly suitable for areas where failures must not occur under any circumstances.

RESIDUAL CURRENT TYPES

Residual current is divided into three types. Some meters can detect only one or two of these types. This means that when setting up a residual current monitoring system, attention must be paid to the type of residual current that may occur and the required measurement technology must be selected accordingly.

Get in touch

Get personal advice now

Your request is important to us and we guarantee fast and professional processing.

WHY IS RESIDUAL CURRENT MONITORING USEFUL?

Black icon of a Germany map on a transparent background

Sales, Germany

Black icon of a globe on a transparent background

International sales

Black icon for solution partner with a handshake symbol on a transparent background

Sales Partners, USA

Black icon for support with a headset symbol on a transparent background

Support for existing equipment

Type A

  • Alternating current + pulse current sensitive
  • Occurs in all areas

fehlerstromarten-typ-a
fehlerstromarten-typ-a
fehlerstromarten-typ-b
fehlerstromarten-typ-b-plus

Type B

  • All-current sensitive
  • Industry

fehlerstromarten-typ-a
fehlerstromarten-typ-b

Type B+

  • All-current sensitive
  • Able to detect very high frequencies

PIC_Brochure_RCM

RMC brochure

Get comprehensive information on residual current measurement

Comprehensive residual current monitoring ensures high availability and avoids outages by giving you an information advantage. It lets you know about potential failure cases at an early stage so you can take the necessary measures, correct errors as they occur, and avoid failures and dangerous situations.

Comprehensive residual current monitoring provides the following:

  • Avoids shutdowns and damage to equipment or failures
  • Prevents fires and the endangerment of employees
  • Significantly reduces the testing effort required within the scope of IEC 60364-6:2016

Janitza UMG 801 Left 1
UMG 801

Expandable modular power analyzer

Janitza RCM 202-AB Left
RCM 202-AB

Residual current analysis device, TYPE AB

Janitza UMG 20CM Left
UMG 20CM

Multi-channel operating current and residual current monitoring device

Janitza UMG 512-PRO Left 1
UMG 512-PRO

Certified power quality analyzer

Janitza UMG 806 Left 2
UMG 806

Multifunctional energy analyzer

Janitza UMG 806-LP Left
UMG 806-LP

Multifunctional energy analyzer

Janitza UMG 96-PA-MID Left
UMG 96-PA-MID+

Modular energy measurement device with counter readings

Janitza UMG 96-PQ-L Left 3
UMG 96-PQ-L

Expandable modular power analyzer

Janitza UMG 96-PQ-L-LP Left 1
UMG 96-PQ-L-LP

Expandable modular power analyzer

Janitza UMG 96RM Left
UMG 96RM-E

Multi-functional power analyzer with Ethernet and RCM

Janitza JPC 100-WEB Left
Smart Energy Panel JPC

Smart Energy Panel JPC