Components and technical solutions for power electronics

Industry Current Sensors ESM Range

 An incomparable immunity against magnetic fields

ESM sensors are thought out, designed and recognised for having an incomparable immunity against surrounding magnetic fields. Being constantly in the presence of strong currents can potentially disturb and produce measurement errors, but this is not the case.They have constant precision and are committed to measure a given current.Only this one ...and not another. 

 High precision for all situations

With two mounting positions, the ABB sensor sets itself apart in the market. It is the first to offer a major innovation with the option of vertical or horizontal mounting.Other sensor manufacturers have been influenced by this arrangement. A way to considerably simplify the work of integrators!The ABB sensor also allows for reduced dimensions for the equipment into which it is being integrated, whilst meeting the requirements of the latest standards.So many essential advantages to better satisfy your aspirations.Between professionals, we understand each other.


 An unavoidable requirement: reduce the volume and increase the power

The improvements in performance of the components used in electronic power systems and the requirement to reduce costs leads constructors to an irreversible tendency: produce smaller, more powerful and cheaper systems. The sensors, following this tendency, are subject to more and more magnetic interference.The ESM range replies well to this requirement by offering an improved immunity to this interference.




Sensors to measure d.c., a.c. or pulsating currents with a galvanic insulation between primary and secondary circuits.

Technical data

Molex HE14 connector ESM1000C ESM1000-9888
JST connector ESM1000S ESM1000-887
CablesESM1000F ESM1000-9886

 Lockable connector

 ESM1000L ESM1000-9935
Nominal primary current  A r.m.s.1000 1000                
Measuring range @ ±15V (±5%) A peak±1500 ±1500
Measuring range @ ±24V (±5%) А peak ±1500 ±1500
Not measurable overload10мс/ч А peak 10000 10000
Max. measuring resistance@ IP max & ±15V (±5%) -
Max. measuring resistance@ IP max & ±24V (±5%) 25 22 
Max. measuring resistance@ IPN & ±15V (±5%) 0 0
Max. measuring resistance@ IPN & ±15V (±5%)11
Turn number 
5000 4000
Secondary current at Ipn    
mA 200 250
Accuracy at Ipn @ +25°C % ≤±0.5  ≤±0.5
Accuracy at Ipn -20 ... +70°C % ≤±1 ≤±1
Offset current@ +25°C mA ≤±0.25≤±0.25
Linearity  % ≤0.1 ≤0.1
Thermal drift coefficient-20 ... +70°C µA/°C ≤10 ≤12.5
Delay time µs ≤1 ≤1
di/dt correctly followed  A /  µs  ≤100 ≤100
Bandwidth-1dB kHz ≤100 ≤100
Max. no-load consumption current@ ±24V (±5%) mA ≤15 ≤15
Secondary resistance@ +70°C ≤44 ≤33
 Dielectric strength Primary/Secondary 50 Hz, 1 min kV3 3
 Supply voltage±5% V d.c. ±15 ... ±24 ±15 ... ±24
Voltage drop ≤2 ≤2
Mass  kg 0.600 0.600
Operating temperature°C -20 ...+70 -20 ...+70
Storage temperature°C -40 ... +85 -40 ... +85

General data
● Plastic case and insulating resin are self-extinguishing.
● Fixing holes in the case moulding for two positions at right angles.
● Direction of the current: a primary current flowing in the direction of the arrow results in a positive secondary output current from terminal M. 

Primary connection
Hole for primary conductor. The temperature of the primary conductor in contact with the case must not exceed 100°C.

Secondary connection
● Molex HE14 connector (ref.: 22-11-10 31)
● JST connector (ref.: B3P-VH)
● 3 x 200 mm cables (cross section 0.38 mm2 )
● Lockable connector (ref. ABB Entrelec: L253 103 31 000)
 Accessories and options
The same as the ES range (see page 41)Other ratings
• Other ratings (500A to 2000A) are available upon request.
ConformityEN50178, EN61000-6-2, EN61000-6-4