2CMA170555R1000 ABB A42 111-100 Single-Phase CT-Connected Energy Meter 6 A
ABB A42 111-100 is a single-phase CT-connected DIN rail active energy meter with a maximum meter current of 6 A, 57.7–288 V AC voltage range, Class B accuracy, electrical pulse output, infrared communication and MID approval.
Why Choose the ABB A42 111-100 Single-Phase Energy Meter?
The ABB A42 111-100 is a compact and reliable single-phase current-transformer-connected DIN rail energy meter designed for accurate measurement of active electrical energy in industrial, commercial and building installations. As part of the ABB A42 EQ meter series, this Steel-functionality meter provides essential energy measurement and electrical instrumentation in a compact modular format.
The A42 111-100 provides active energy measurement together with monitoring of key electrical parameters including current, voltage, frequency and power factor. Its pixel-oriented display provides clear access to measured values, while an integrated infrared communication port and electrical pulse output provide additional options for meter reading and energy monitoring.
Designed for single-phase CT-connected measurement up to 6 A, the A42 111-100 is suitable for applications where indirect measurement through an external current transformer is required. It supports a wide 57.7–288 V AC voltage range, operates at 50 / 60 Hz and provides Class B / Class 1 active energy accuracy with MID approval.
Key Advantages
Compact single-phase CT-connected energy meter for industrial and commercial applications.
Transformer-connected measurement up to 6 A for indirect metering applications.
Class B / Class 1 active energy accuracy for dependable consumption measurement.
Wide 57.7–288 V AC voltage range for flexible system integration.
Integrated electrical pulse output for remote energy monitoring or alarm applications.
Infrared communication interface for compatible meter-reading equipment.
Measures essential electrical instrumentation values including voltage, current, frequency and power factor.
MID approved for applications requiring compliant energy measurement.
Key Features
ABB A42 EQ meter series with Steel functionality.
Single-phase current-transformer-connected energy metering.
1 A / 6 A nominal current ratings.
6 A maximum meter current.
57.7–288 V AC nominal voltage range.
50 / 60 Hz nominal frequency.
Active energy measurement with Class B / Class 1 accuracy.
Measurement of active energy, voltage, current, frequency and power factor.
Electrical pulse output for energy monitoring.
Integrated infrared communication port.
Single-tariff energy metering.
IP20 protection rating.
DIN rail mounting for straightforward installation in electrical panels.
Reliable CT-Connected Single-Phase Energy Monitoring
The ABB A42 111-100 uses an external current transformer to measure active electrical energy on single-phase circuits where indirect metering is required. This arrangement makes the meter suitable for electrical distribution and sub-metering applications where the primary circuit current cannot be measured directly by the meter.
In addition to accumulated active energy, the A42 series provides useful instrumentation values including voltage, current, frequency and power factor. The electrical pulse output enables energy consumption data to be transmitted to compatible monitoring equipment, while the infrared interface provides local communication with compatible ABB equipment.
Typical Applications
Single-phase CT-connected electrical energy monitoring.
Tick the specs you need, then view products that match.
MID Approval
Yes
Device Type
Energy meter
Measurement Connection Type
Via CT (/5 A)
Current Input Rating (A)
6 A
Series
A42 EQ Meters
ABB order code / Product ID
2CMA170555R1000
Product group
DIN Rail Mounted Meters
Product type
Single-phase CT-connected energy meter
Functionality level
Steel
Number of phases
1-phase
Connection type
Current-transformer / indirect measurement
Nominal current
1 A / 6 A
Maximum current
6 A
Nominal voltage
57.7–288 V AC
Frequency
50 / 60 Hz
Active energy accuracy
Class B / Class 1
Energy measurement
Active energy
Tariff type
Single tariff
Digital I/O
1 digital output
Output
Electrical pulse output
Communication interface
Infrared port
Display
Pixel-oriented digital display
Protection rating
IP20
Mounting type
DIN rail
Installation width
4 DIN modules
Width
70 mm
Height
26.5 mm
Depth
65 mm
Weight
approx. 0.197 kg
Operating temperature
-40–70 °C
EAN
7392696705554
Approval
Measuring Instruments Directive (MID)
Reference standard
IEC 62052-11
Frequently Asked Questions
What is the ABB A42 111-100 used for?
The ABB A42 111-100 is used to measure active electrical energy and key electrical parameters on single-phase CT-connected circuits in industrial, commercial and building installations.
Is the ABB A42 111-100 directly connected or CT connected?
The A42 111-100 is a current-transformer-connected meter designed for indirect single-phase energy measurement, with a maximum meter current of 6 A.
What voltage range does the ABB A42 111-100 support?
The meter supports a nominal voltage range of 57.7–288 V AC and a nominal operating frequency of 50 / 60 Hz.
Does the ABB A42 111-100 have a pulse output?
Yes. The A42 111-100 includes an electrical pulse output that can be used to transmit energy pulses to compatible monitoring and data acquisition equipment.
Is the ABB A42 111-100 MID approved?
Yes. The A42 111-100 is MID approved and provides Class B / Class 1 active energy measurement accuracy.
Trusted Energy Metering from ABB
ABB A42 energy meters provide dependable transformer-connected single-phase energy measurement for industrial and commercial installations, combining accurate active energy metering with electrical instrumentation, pulse output and compact DIN rail installation.
Free UK delivery on orders over £200 ex VAT. Order in-stock items before 2pm Monday to Friday for next-day delivery.
This productManufacturer Lead Time
Estimated Delivery 6 weeks
Standard delivery
£8 ex VAT · free over £200
UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
Collect from our showroom
Mon–Fri, 8am–5pm
Order and pay online, then collect from our showroom.
Please allow 15–30 minutes after ordering for us to prepare your order.
Northern Ireland, ROI & export
Priced at checkout
We deliver to Northern Ireland, the Republic of Ireland and overseas.
Delivery is calculated at checkout based on your destination.
Orders with mixed availability
Shipped complete
If part of your order is on a lead time, we hold it and send everything together.
Need the in-stock items sooner? Ask us and we can split the delivery.
Business customer returns
Returns & order support
Need to return an item? Find the guidance for your order below, then contact our team before sending anything back.
Stocked items
Request within 30 days
Changed your mind or ordered the wrong item? Request a return within 30 days of receipt. There is no restocking charge.
Items must be unused, in resalable condition and in their original packaging, and returns need our approval first. Return carriage is at your cost, and the original delivery charge is not refunded.
Faulty or damaged items
Tell us as soon as possible
Faulty, damaged on delivery or the wrong product supplied? Contact our team as soon as possible with the details.
We will review the issue and arrange an appropriate resolution under our terms and conditions and your statutory rights.
Made-to-order items
Manufacturer approval needed
Manufactured, configured and special-order products can only be returned with the manufacturer’s approval. Any handling charge is agreed with you when you request the return.
This does not affect claims for faulty goods or items that do not meet the agreed specification.
Let’s get your return sorted.
Send your order number, product details and reason for return. For faults or delivery damage, include photographs if available. We will confirm the next steps.
The 30-day return request period applies to change-of-mind returns for stocked items. It does not limit your statutory rights for faulty or non-conforming goods.
● Service Agreements
Credit Accounts
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
Priority sourcing and supply support
Flexible payment terms for qualifying organisations
Support for engineering, maintenance, and operations
500 +
Stock lines ready to ship
1,000 +
Same day dispatches
3500 +
Customers supported
28
Trusted Manfacturers
● frequently asked questions
Common questions about our products and support
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
What product ranges do you supply
We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
Can you help specify the correct part?
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Do you have stock for urgent orders?
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
What are your delivery times and costs?
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
What about warranties, returns and faulty items?
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
