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POWER MONITORING

INSTALLATION GUIDE

H704-42(H)(E), H704-42/1(H)(E)

General:

Operating Temp. Range 0° to 60°C (32° to 140°F) (<95% RH, non-condensing)

Storage Temp. Range -40° to 70°C (-40° to 158°F)

Control (Mains) Power Source 120 VAC L-N, 50/60 Hz (208/230 VAC for H704-42/1(E))

(+10/-25%) Input current < 75 mA

Primary Fusing 250 VAC/100 mA, (T) 5 x 20 mm, (if equipped) Littelfuse 218 series

or equivalent

Altitude of Operation 3 km max.

Measured Current Inputs:

Number of Channels 42

Frequency 50/60 Hz

Sample Frequency 1280 Hz

Update Rate 1.2 sec

Accuracy ±2% from 5 A to 50 A *

Overload Capability Tested to 10,000 A single-cycle

Connection to Conductor Solid-core toroid

Measured Currents Current range 0-50 A (max. conductor size is AWG#6 THHN)

Measured Currents, H version Current range 0-100 A (max. conductor size is AWG#2 THHN)

Network Communications:

Type Modbus RTU

Connection DIP switch-selectable 2-wire or 4-wire

Address DIP switch-selectable address 1 to 247

Baud Rate DIP switch-selectable 2400, 4800, 9600, 19200

Parity DIP switch-selectable NONE, ODD, EVEN

Communication Format 8-data-bits, 1-start-bit, 1-stop-bit

Termination 5-position depluggable connector

(TX+ TX- SHIELD TX+/RX+ TX-/RX-)

Defaults:

Warning Register 60% of current sensor max. (conﬁgurable)

Alarm Register 70% of current sensor max. (conﬁgurable)

Breaker Size Register 20 A

* In case of a current fault above 60A (120 for the H version), all adjacent channels will report

higher than actual readings. To prevent this from causing over-current warnings and alarms,

configure the warning and alarm delays for a longer time period than the response time of the

breaker.

quick install

Installer's Speciﬁcations

NOTICE

DANGER

1. Disconnect and lock out power.

2. Mount current sensor strips adjacent to breaker terminations.

3. Verify that serial numbers on CT and board match.

4. Mount board onto electrical/ﬁre enclosure.

5. Connect CTs and wire the board.

6. Reconnect power.

7. Conﬁgure communication and addressing parameters.

Note: Data acquisition board and CT strips are calibrated as a set. Match the serial

numbered parts together.

MODEL # CT SPACING

H704-42(H)(E) ¾" on center

H704-42/1(H)(E) 1" on center

For a 400A Panel, order the H704-42Y55

Branch Current Monitor

1 2 3 4 5 6 7 8

Sommario

Pagina 1 - Branch Current Monitor

Pagina 2 - INSTALLATION GUIDE

Pagina 3 - H704-42/1

Pagina 4 - 6%2)3).$5342)%3

Pagina 5

Pagina 6

Pagina 7

Pagina 8

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