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Elster A1100-MID Three Phase Digital kWh Meter

The use of innovative metering technology provides cost-effective metering that is highly secure and maintains a high degree of accuracy over its full operating range.

Next Day Delivery (subject to availability)

£70.00 excluding VAT £84.00 including VAT @ 20%
  • 100 Amp Rated
  • Compact Modern Design
  • MID Approved
  • Pulse Output
  • Three Phase
  • FreeDelivery
  • 30DayMoneyBack
  • Description
  • Features & Specification
  • Resources
  • Delivery

Elster A1100-MID Three Phase Digital kWh Meter 
(100A Direct Connected – Pulsed Output)

The use of innovative metering technology provides cost-effective metering that is highly secure and maintains a high degree of accuracy over its full operating range. The A1100 meter is suitable for direct connected or CT operated domestic, commercial and light industrial polyphase applications. The meter is available as import only or import and export.

The A1100 is available with a Liquid Crystal Display or a Mechanical Register. The Liquid Crystal Display version of the meter can be supplied with one or two rates. The display has a customer defined display sequence that can include security information. Chevrons and legends on the nameplate identify the data being displayed.

The meter records extensive security data that can be viewed on the display. The same data is can be read via the IrDA communications port.

The mechanical stepper register has 7 number wheels, large with digits. The most significant digit of the register can be blanked off by fitting a special nameplate to the meter at manufacture. Nameplate information can be in any language. The mechanical register version offers import kWh one rate only. Five LED’s are used to identify the status of the meter.

Communications is provided via the IrDA port allowing the meter registers and security data to be read electronically using a hand-held device or via a hardwired connection. As an alternative to serial data the auxiliary terminals or RJ11 can be configured at manufacture to give SO type kWh consumption pulses. The pulsed output pulse value and pulse width is configured at manufacture and is independent of the test indicator pulse value.

About Elster (A Honeywell Company)

We are a leading global provider of gas, electricity and water meters and related communications, networking and software solutions.  

Elster Group GmbH employs more than 7,000 staff and operates in more than 39 countries. Our diverse portfolio of products and solutions are used to accurately and reliably measure gas, electricity and water consumption as well as enable energy efficiency and conservation.  

We sell our products and solutions to utilities, distributors and industrial customers across gas, electricity, water and multi-utility organizations for use in residential and commercial and industrial settings. Our customers operate in more than 130 countries and include numerous large, medium and small utilities.


Manufacturer Elster Metering Systems
Meter Type A1100
Voltage Rating (Un) Direct Connection 220-240V (L-N), 380-415V (L-L)
Transformer Operated 220-240V (L-N), 380-415V (L-L)
Current Rating (lmin - Iref (lmax)) Direct Connection 0,25-5(100)A or 0,25-5(85)A (Any value Iref > 5, up to lmax)
Transformer Operated 0,01-1(10)A or 0,01-1(6)A (Any value of ln > 1, up to lmax)
Frequency (Fn) 50Hz
Active Accuracy Class (kWh) A or B kWh
Type of Circuit 1p2w, 1p3w, 2p of 3p4w, 2p3w, 3p3w, 3p4w
Temperature Range -40°C to +70°C
Software / Firmware Version #
Identification Location
201166-E2A or 2-01166-l or 2-01166-K
Bill of Materials Number JG0517 with LCD Register
JG0518 with Mech Register
IP Rating IP51
Insulation Protective Class Class II
LED Pulse Constant 500 or 5000 imp/kWh
Impulse Voltage Rating 6kV
AC Voltage Rating 4kV
Main Cover Sealing Type Sealed for Life
Integrity of Meter Inaccessible without breaking seals
Intended Location of Meter Indoor
Type of Register LCD
Terminal Arrangement(s) BS or DIN

Orders requiring calibration 

Whilst we take the greatest care to get all orders dispatched and delivered to you in the stated time frame, orders received PM and requiring
calibration may on occasion miss dispatch that day, according to the complexity of the calibration. Be assured they will ship on the next dispatch
this in most cases should not add more than 24 hours to your delivery.

Bank/Public Holidays

Predicted delivery times are based on regular trading days Monday to Friday. Public holidays, bank holidays and weekends are outside the usual scope 
of our dispatch and subject to activities/holidays of our carriers and therefore may incur additional days lead time to your order.

*UK Mainland (Temporarily revised June 2020)

Please note that regrettably, we have had to realign our delivery service options to those available from our carriers.
During the current situation surrounding the effects of the Coronavirus pandemic, logistics from every company are under immense pressure to deliver goods on time.
We have taken the decision to temporarily limit our services rather than let our customers down.
We hope you will understand our position on this and we apologise unreservedly for the inconvenience we know this will cause.
We look forward to restoring our full delivery service schedule just as soon as we are able.

Standard FREE 1-2 Day Courier Delivery – UK Mainland only - Zones A & B

Included in the price for all orders over £75.00 (exc vat). Sent using express courier, delivered within 1-2 working days from the date of your order, subject to availability.


Next Day Anytime Delivery (Excluding Saturday & Sunday) – UK Mainland only - Zones A & B
Sent by express courier, delivered next day (excluding weekends) from the date of your order, subject to availability.


Orders must be placed before 3:00pm for a qualifying next day delivery and a telephone number supplied, subject to availability.

New Postage Map Sept 2018>

Delivery Surcharges

Because of the high cost of carriage, we need to apply a surcharge on all deliveries made in the following regions bringing the carriage charges to:

  • Zones A & B  - Mainland delivery rates apply. 
  • Zone C - Scottish Highlands (Charges are calculated at the checkout).
  • Zone D - Outer Hebrides, Orkney Isles, Shetland Isles, Isle of Man, Scilly Isles, and Channel Islands (Charges are calculated at the checkout).
  • Zone E - Northern Ireland (Charges are calculated at the checkout).
  • Zone F - Republic of Ireland (Charges are calculated at the checkout).

Offshore Services

All offshore deliveries are a 2 day service as standard. This includes Channel Islands, Northern & Southern Ireland, Scottish Islands, Isle of Man and the Scilly Isles.

International Delivery

International delivery charges are automatically added to your order at the checkout. For any questions regarding international deliveries please contact us at


All export inquiries should be directed to the export division before placement of order.

If no shipping option is available to your selected country please call us FREE on 0800 0224 060 to purchase your items.
All stated prices are subject to VAT at the current rate where applicable E&OA