EF19-6.3

Name: EF19-6.3
Brand: ABB
SKU: EF19-6.3

The ABB EF19-6.3 electronic overload relay provides flexible overload protection with a setting range of 1.9 to 6.3 Ampere. It offers automatic or manual reset options and is designed for reliable motor protection.

Product ModelEF19-6.3

Material Number1SAX121001R1104

Product ID85443

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. Reliable ProtectionThe EF19-6.3 offers fast and reliable protection for motors against overloads, ensuring the longevity of your equipment.
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2. Flexible Setting RangeWith a setting range of 1.9 to 6.3 Ampere, this relay can be adjusted to suit various motor sizes and applications.
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3. Automatic or Manual ResetChoose between automatic or manual reset options to suit your specific needs, ensuring minimal downtime and easy maintenance.
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4. Compact DesignThe self-supplied design means no extra external supply is needed, making it compact and easy to integrate into your system.
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Technical Specifications

Detailed engineering parameters based on manufacturer documentation

Specifications may be subject to change without notice

Parameter

Value

Parameter

Value

Product Net Width

44.4 mm

Product Net Height

85 mm

Product Net Depth / Length

59.3 mm

Product Net Weight

0.158 kg

Setting Range

1.9 ... 6.3 A

Rated Operational Voltage

Auxiliary Circuit 600 V AC/DC Main Circuit 690 V AC

5. Versatile ApplicationsSuitable for a wide range of industrial applications, the EF19-6.3 provides reliable protection in various environments, from manufacturing to HVAC systems.

Rated Operational Current (Ie)

6.3 A

Rated Frequency (f)

Auxiliary Circuit 50 Hz Auxiliary Circuit 60 Hz Auxiliary Circuit DC Main Circuit 50 Hz Main Circuit 60 Hz

Rated Impulse Withstand Voltage (Uimp)

Auxiliary Circuit 6 kV Main Circuit 6 kV

Rated Insulation Voltage (Ui)

690 V

Number of Poles

Number of Auxiliary Contacts NC

Number of Auxiliary Contacts NO

Number of Protected Poles

Conventional Free-air Thermal Current (Ith)

Auxiliary Circuit NC 6 A Auxiliary Circuit NO 6 A

Rated Operational Current AC-15 (Ie)

(240 V) NC 3 A (240 V) NO 3 A (400 V) NC 1.1 A (400 V) NO 1.1 A (500 V) NC 0.75 A (500 V) NO 0.75 A

Rated Operational Current DC-13 (Ie)

(125 V) NC 0.55 A (125 V) NO 0.5 A (24 V) NC 1.5 A (24 V) NO 1.5 A (250 V) NC 0.27 A (250 V) NO 0.27 A (60 V) NC 0.55 A (60 V) NO 0.55 A

Degree of Protection

IP20

Pollution Degree

Connecting Capacity Auxiliary Circuit

Flexible with Ferrule 1/2x 0.75 ... 2.5 mmÂ² Flexible with Insulated Ferrule 1/2x 0.75 ... 2.5 mmÂ² Flexible 1/2x 0.75 ... 2.5 mmÂ² Rigid 1/2x 1 ... 4 mmÂ²

Connecting Capacity Main Circuit

Flexible with Ferrule 1/2x 0.75 ... 2.5 mmÂ² Flexible with Insulated Ferrule 1/2x 0.75 ... 2.5 mmÂ² Flexible 1/2x 0.75 ... 2.5 mmÂ² Rigid 1/2x 1 ... 4 mmÂ²

Tightening Torque

Auxiliary Circuit 0.8 ... 1.2 NÂ·m Main Circuit 0.8 ... 1.5 NÂ·m

Wire Stripping Length

Auxiliary Circuit 9 mm Main Circuit 9 mm

Recommended Screw Driver

Auxiliary Circuit Pozidriv 2 Main Circuit Pozidriv 2

Mounting Position

1 ... 6

Power Loss

at Rated Operating Conditions per Pole 0.008 ... 0.083 W

Suitable For

AF09 AF12 AF16 AF26

Standards

IEC/EN 60947-1 IEC/EN 60947-4-1 IEC/EN 60947-5-1 UL 60947-1 UL 60947-4-1

Maximum Operating Voltage UL/CSA

Main Circuit 600 V AC

Contact Rating UL/CSA

(NC:) B600 (NC:) Q600 (NO:) B600 (NO:) Q600

Connecting Capacity Main Circuit UL/CSA

Flexible 1/2x 16-10 AWG Stranded 1/2x 16-10 AWG

Connecting Capacity Auxiliary Circuit UL/CSA

Flexible 1/2x 18-10 AWG Stranded 1/2x 18-10 AWG

Tightening Torque UL/CSA

Auxiliary Circuit 7 ... 1 inÂ·lb Main Circuit 7 ... 13 inÂ·lb

Ambient Air Temperature

Operation -25 ... +70 Â°C Operation Compensated -25 ... +70 Â°C Storage -50 ... +80 Â°C

Ambient Air Temperature Compensation

Yes

Maximum Operating Altitude Permissible

2000 m

Resistance to Shock acc. to IEC 60068-2-27

11 ms Pulse 25g

Resistance to Vibrations

3g 3 ... 150 Hz

RoHS Status

Following EU Directive 2011/65/EU and Amendment 2015/863 July 22, 2019

Toxic Substances Control Act - TSCA

2CMT2023-006525

Object Classification Code

ETIM 4