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DIRIS A10<br />

Multifunction meters - PMD<br />

modular multifunction meter<br />

Connection<br />

Recommendation:<br />

- For IT earthing systems, it is recommended that the CT secondary is not connected to earth.<br />

- When disconnecting the DIRIS, the secondary of each current transformer must be short-circuited. This operation can be carried out automatically by<br />

a SOCOMEC PTI, an accessory which is included in this catalogue. Please consult us.<br />

- It is recommended that the earthing point for the DIRIS A10 and the current transformer secondaries are not earthed at the same time.<br />

Low voltage balanced network<br />

3/4 wires with 1 CT<br />

Single-phase<br />

Two-phase<br />

diris_810_a_1_gb_cat<br />

1 1 1<br />

V1 V2 V3 VN<br />

P1<br />

S1<br />

S1 S2<br />

I1<br />

S2<br />

S1 S2 S1 S2<br />

I2<br />

I3<br />

N<br />

L1<br />

L2<br />

L3<br />

diris_811_a_1_gb_cat<br />

1<br />

V1 V2 V3 VN<br />

P1<br />

S1<br />

S1 S2<br />

I1<br />

S2<br />

S1 S2 S1 S2<br />

I2<br />

I3<br />

L1<br />

N<br />

diris_812_a_1_gb_cat<br />

1 1<br />

V1 V2 V3 VN<br />

1. Fuses 0.5 A gG / 0.5 A class CC. 1. Fuses 0.5 A gG / 0.5 A class CC. 1. Fuses 0.5 A gG / 0.5 A class CC.<br />

Low voltage unbalanced network<br />

P1<br />

S1<br />

S1 S2<br />

I1<br />

S2<br />

S1 S2 S1 S2<br />

I2<br />

I3<br />

L1<br />

L2<br />

3/4 wires with 3 CTs<br />

3 wires with 2 CTs<br />

3 wires with 2 CTs<br />

diris_813_a_1_gb_cat<br />

1 1 1<br />

V1 V2 V3VN<br />

P1<br />

S1<br />

S2<br />

P1<br />

S1<br />

S1 S2 S1 S2 S1 S2<br />

I1 I2 I3<br />

N<br />

L1<br />

L2<br />

L3<br />

S2<br />

1 1 1<br />

diris_814_a_1_gb_cat<br />

V1 V2 V3 VN<br />

P1<br />

S1<br />

S1 S2<br />

I1<br />

S2<br />

I2<br />

P1<br />

S1<br />

S1 S2 S1 S2<br />

I3<br />

L1<br />

L2<br />

L3<br />

S2<br />

diris_815_a_1_gb_cat<br />

1 1 1<br />

V1 V2 V3 VN<br />

P1<br />

S1<br />

S1 S2<br />

I1<br />

P1<br />

S1<br />

S2<br />

S1 S2 S1 S2<br />

I2<br />

I3<br />

L1<br />

L2<br />

L3<br />

1. Fuses 0.5 A gG / 0.5 A class CC.<br />

Use of 2 CTs reduces by 0.5% the accuracy of the<br />

phases, the current of which is worked out by vector<br />

calculation.<br />

1. Fuses 0.5 A gG / 0.5 A class CC.<br />

Use of 2 CTs reduces by 0.5% the accuracy of the<br />

phases, the current of which is worked out by vector<br />

calculation.<br />

1. Fuses 0.5 A gG / 0.5 A class CC.<br />

Additional information<br />

Communication via RS485 link<br />

AC auxiliary power supply<br />

110-277 VAC<br />

LIYCY-CY<br />

1<br />

1<br />

diris_820_a_1_x_cat<br />

0V - +<br />

RS485<br />

diris_821_e_1_x_cat<br />

20 22<br />

AUX<br />

1. Fuses 0.5 A gG / 0.5 A class CC.<br />

76 Catalogue 2017

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