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| System installation – Electrical connection of the eMShome for indirect measurement with current transformers

Electrical connection of the eMShome for indirect measurement with current

transformers

Proceed as follows:

1 Mount the eMShome on a top-hat rail.

y Hook the eMShome onto the top edge of the

top-hat rail and press it until it clicks into place.

L1 L2 L3

L1 L2 L3 N

L2 L3

L1 L2 L3

L1 L2 L3 N

I/s2

k/s1

eMS home

Consumer

Fuse

3×10/16A

Current

transformers

Circuit breaker

Electricity sup-

ply company’s

energy meter

Public electricity network 230/400V

Meter fuse 3×63 A

DANGER: see

note below

OUT

Example for implementation

2 Lead the outer conductors L1, L2 and L3 through one

current transformer each.

3 Connect a cable for the secondary current measure-

ment to each current transformer at terminals k/s1

and I/s2.

y Pay attention to the permissible connection cross

section of the eMShome (see “Technical specifi-

cations” onpage48).

4 Connect the connecting cables for the current meas-

urement to the eMShome (see also box below).

y Pay attention to the permissible tightening torque

for the screw terminals (see “Technical specifica-

tions” onpage48).

5 Connect the connecting cables for the voltage meas-

urement to the eMS home (see also box below).

y Pay attention to the permissible tightening torque

for the screw terminals (see “Technical specifica-

tions” onpage48).

6 Connect the connecting cables for the voltage meas-

urement to the outer conductors L1, L2 and L3.

Designation Explanation

L1, L2, L3 Outer conductor

N Neutral

OUT Meter output, consumer side

IN Meter input, mains side

WARNING!

Specifications for connecting two lines in one terminal

Please observe the following specifications for the connection cables for current and voltage measurement:

 If the cross-sections of the two connection cables for current and voltage measurement differ (greater than

±0.5mm²), you should clamp these cables together in a suitable double-wire end sleeve.

 It is not permitted to connect a stranded and a rigid cable together in one terminal.

Communication Interface	Ethernet
Protocols	Modbus TCP
Storage Temperature	-40°C to +70°C
Humidity	5% to 95% (non-condensing)
Certification	CE

ABL eMS home User Manual

Table of Contents

Questions and Answers:

ABL eMS home Specifications