ORNO OR-WE-531 3-Phase Energy Meter 80A MID DIN TH-35mm 4.3 Modules

The ORNO OR-WE-531 is an electronic three-phase energy meter for direct measurement of active electrical energy in three-phase installations, without the need for current transformers. It is suitable for commercial, industrial, and domestic applications and carries MID approval (2014/32/EU). The meter mounts on a DIN TH-35mm rail and occupies 4.3 modular spacings.

• Measurement type: Direct, three-phase active energy (import and export)
• Nominal current (In): 5A; maximum current (Imax): 80A; minimum current: 0.25A; start current: 0.004A
• Rated voltage: 3×230V / 400V AC at 50Hz
• Measurement accuracy class: 1 (per EN IEC 62053-21:2021)
• Pulse output: S0 optical, 1000 imp/kWh, 12–27V DC, ≤27mA
• Display: LCD 6+2 digits (kWh), backlit
• IR port: Yes; communication interface: EN 62056-21
• Memory: Li-Ion battery backup; sub-meter reset supported
• Mounting: DIN TH-35mm rail adapter, 4.3 modules wide
• Dimensions: 76 × 65 × 100mm (W × D × H); max cable cross-section: 35mm²
• Operating temperature: −25 to +55°C; max relative humidity: ≤95%
• Protection rating: IP51
• Approval: MID 2014/32/EU; standards: EN 50470-3:2022, EN IEC 62053-21:2021, IEC 62052-11:2020, IEC 62052-31:2015