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| Product Detail & Specification | DDS28 or HLM01 single-phase static watt-hour meter designed for active energy measurement for direct connection and measurement through instrument transformers in single-phase low voltage mains with frequency of 50 or 60 Hz. They comply with the IEC 62053-21 standard for Class 2 or 1 and are manufactured in compliance with the ISO 9000 standard. The type test has past the KEMA (Holland) Type Test according to IEC 62053-21. This meters produced with the first-class equipment of the world and state-of-the-art workmanship. Adopts the electronic components of high quality supplied by the international reputed manufactures. It is a meter with high accuracy and reliability, low power loss and wide load range. BASIC FUNCTIONS -Energy display by register -Bi-directional active energy measurement -Operation indicated by pulse LED -SO output with optical isolated output transistor corresponding to DIN 43864 OPTON FUNCTIONS -Reverse indicator : An LED indicator will be on when the current is reversed -Entirely closed register -Entirely closed register -HF magnet immune register -Reversal preventing register -Transformer connection
Single-Phase Two-Wire Static Watt-Hour Meter
SPECIFICATIONS
Type DDS28 or HLM 01
Standard IEC 62053-21 / KEMA
Type of Connection Direct or CT/PT
Standard Reference Voltage 220 V
Operational Reference Voltage 110 / 120 / 220 / 230 / 240 V
Rate Frequency 50 or 60 Hz.
Rate (Max.) Current 5(15)A / 10(60)A / 15(45)A / 30(100)A
Meter Constant 3200 / 1600 / 800
Power LossCurrent Circuit < 0.3 W Voltage Circuit < 0.7 W or < 3.0 VA
Accuracy class 1.0
Starting Current 0.4% Ib
Thermal Current 1.2 Imax
Operation Temperature 40oc to 70 oc
Impulse Voltage 6000V
Short-circuit overcurrent 30 Imax
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