1 module RS485 single phase energy meter included 75 A CT • EM1100TCRS

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Energy measurement and management

Energy meters

1 module RS485 single phase energy meter included 75 A CT

EM1100TCRS

1 module RS485 single phase energy meter included 75 A CT

Sold individually, in packs of 1

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Other single-phase models available

40 A

80 A

Description

Installed upstream of an electrical circuit, energy meters are used to identify and monitor an installation’s electricity consumption.

Our wide range of products can be used for metering and measuring directly connected single-phase, three-phase or four-phase circuits of up to 100 A and up to 6000 A when connected via current transformers.

The EM1100TCRS meter is an electrical measuring device operating on a single-phase network with RS485 Modbus communication and two pulse outputs. It has been designed so that all the parameters of the electricity network can be read directly on the meter and the information fed back to a BMS. This CT connection meter meters up to 75 A.

Technical characteristics

Network

Single-phase

Rated current

100 mV (75 A / 100 mV split core CT included)

Maximum current

120 mV

Starting current

10 mA x primary to secondary CT ratio (example for primary 75 Idema = 150 mA)

Nominal voltage

230 Vac (-20% to +20%)

Frequency

50/60 Hz

Consumption

< 2 W, 10 VA

Measures

Active energy, voltage, current, active and reactive power, power factor, frequency

Precision

Class 1 in accordance with IEC 62053-21

Metrological LED

Flashes according to pulse 1000 imp / kWh

Screen

Backlit LCD, 6 digits

Output

Pulse and RS485 Modbus

Typical pulse output

Optocoupler 5 to 27 Vdc, 27 mA max

Pulse weight

1000 pulse / kWh and adjustable to 0.001 / 0.01 / 0.1 kWh

Pulse duration

60 ms

Maximum Vce voltage

27 Vdc

Maximum short-circuit current

27 mA

Typical Modbus output

Two-wire RS485, RTU mode

Communication speed

9600 baud max

Parity, stop bit

Even, odd or none; 1 or 2

Transmission distance

15 metres maximum for pulses, 1200 metres and 32 slaves for the bus

Data retention

Non-volatile memory (> 20 years)

Connection of phase and neutral terminals

6 mm², torque 2 N.m

Connection of comm. terminals

1 mm², torque 0.25 N.m

Mounting

DIN rail

Precautions for use

Fit the sealable terminal covers after connecting the product

Height

119 mm

Width

18 mm (1 module)

Depth

62 mm

Weight

155 g

Colour

Grey

Materials

Self-extinguishing ABS polymer

Operating temperature

-20°C to +50°C, humidity 0 to 95% non-condensing

Storage temperature

-25°C to +60°C, humidity 0 to 95% non-condensing

Protection class

IP51 front panel

Standards

IEC 62053-21, IEC 62053-23

Packaging

1 unit

Minimum order

1 unit

The same product for every type of communication

The EM140PURS is fitted as standard with two pulse outputs and RTU Modbus communication.

Easy to use, Modbus parameters are programmed on the front panel through a pushbutton.

1 =

A multi-measurement meter

Our range of Modbus RS485 communicating meters can undertake a complete analysis of your network.

As well as active energy, the meter also displays voltage, current, active and reactive power, power factor and frequency.

2 =

Compact products

Aware that space is a key factor in the design of your cabinets, we have developed a compact range. Our 40 A meter is only 17.5 mm wide, i.e. 1 module.

3 =

Secure meter

Our meters are supplied with terminal covers to prevent any risk of electric shock. These terminal covers can also be sealed to prevent fraud.

4 =

Easy wiring of existing installations

The BACS (Building Automation and Control System) requires all commercial buildings to be fitted with a BMS if they have a heating or air-conditioning system of more than 70 kW.

Our range of open CT or Rogowski loop meters makes it easy to add metering points to your electrical installation with minimum downtime. There’s no need to de-cable the existing installation, just wrap the cable around the CT or loop.

What’s more, our network expert can offer you a support service for uploading information to a web page.