Saia Burgess Controls Energy Counter

single phase. Operating range 20 mA - 25 A. Precision class 1 (±1%). Output (SO+/SO-): optocoupler 30 V/20 mA max., 5 V min; impedance 100 Ohm; pulse duration 50 ms; output pulse 1000 pulses/kWh. Functional check: green LED: counter in operating range; LED flashes green/red: pulse sequence in accordance with SO output. Approved by PTB, Germany's national metrology institute. Connection cross-section single-core: mains 6 mm, SO+/SO- max. 2.5 mm; multi-core: mains 0.75 - 4mm, SO+/SO- max. 1.5 mm. Screw terminals for mains: M4 SO: M3, screwdriver Pozidrive/Phillips/flat no.1.