VARTA.energymeter VEM103-CT 63A

VARTA.energymeter – Real-time energy measurement for smart energy management

The VARTA.energymeter precisely records all energy flows in the home in real time, thereby forming the basis for efficient system control. As a mandatory component of the VARTA.hybrid.wall system, it ensures precise control of charging and feed-in. Two variants cover all installation scenarios – from new installations to retrofitting in existing systems.

Product benefits at a glance

• Real-time measurement – bidirectional recording of all energy flows with a 100 ms sampling time
• High measurement accuracy: ≤ 2% (VEM103-CT)
• Two variants – direct or clamp-on current transformer measurement for every application Easy installation – DIN rail mounting & plug-and-play via the VARTA.install app Secure
• data transmission – Encrypted communication via mTLS with certificate authentication
• Versatile – single- and three-phase measurement points, new and existing installations
• Easy monitoring – status LEDs, local web interface & VARTA.energy portal

Key technical data:

• Variants: VEM103 (direct measurement) / VEM103-CT 63A (clip-on current transformer, included)
• Max. measurement current: 63 A per phase
• Sampling time: 100 ms
• Communication: Ethernet (Modbus TCP) / RS485 (Modbus RTU)
• Connection: RJ45 (Ethernet), max. cable length 100 m
• Mounting: DIN rail (indoor use)
• Operating temperature: −25 °C to +45 °C (VEM103) / up to +55 °C (VEM103-CT)
• Protection class: IP2X
• Warranty: 2 years