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ABB t16-2.3 thermal overload relay 1.7a - 2.3a

ABB t16-2.3 thermal overload relay 1.7a – 2.3a

ABB T16-2.3 thermal overload relay with adjustable 1.7 to 2.3 A current range designed for motor overload and phase failure protection in industrial automation systems.

SKU: 1SAZ711201R1031Alt SKU: T16-2.3MPN: 1SAZ711201R1031
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Why Choose the ABB T16-2.3 Thermal Overload Relay?

The ABB T16-2.3 Thermal Overload Relay (1SAZ711201R1031) is a reliable electromechanical motor protection device designed to safeguard three-phase motors against overload conditions and phase failure. Part of the trusted ABB T16 thermal overload relay series, it provides dependable protection for industrial motor starters, helping extend motor life while reducing costly downtime.

Designed for direct connection to compatible ABB mini contactors and block contactors, the T16-2.3 combines simple installation with proven motor protection. Featuring selectable automatic or manual reset, integrated temperature compensation and trip indication, it delivers dependable performance across a wide range of industrial applications.

With an adjustable current range of 1.7 to 2.3 A and Trip Class 10 protection, the ABB 1SAZ711201R1031 is ideal for protecting small motors used in conveyors, pumps, compressors, fans, machine tools and automated production equipment.

Key Advantages

  • Reliable thermal overload protection for three-phase motors.
  • Adjustable overload setting from 1.7 to 2.3 A.
  • Protects against motor overload and phase failure.
  • Trip Class 10 for fast motor protection.
  • Automatic or manual reset selectable.
  • Direct mounting onto compatible ABB contactors for quick installation.

Key Features

  • ABB T16 thermal overload relay series.
  • Current adjustment range: 1.7 to 2.3 A.
  • Trip Class 10 motor protection.
  • Temperature compensated for improved accuracy.
  • Integrated 1 NO + 1 NC auxiliary contacts.
  • Trip-free mechanism with STOP function.
  • Trip indication for easy fault diagnosis.
  • Automatic or manual reset operation.
  • Direct mounting to ABB mini and block contactors.

Reliable Protection for Electric Motors

Thermal overload relays monitor motor current and disconnect the control circuit if excessive current is detected for an extended period. This prevents motor overheating, insulation damage and premature equipment failure while improving the reliability of industrial machinery.

The ABB T16 series is widely used alongside contactors in motor starters, providing cost-effective protection for pumps, conveyors, compressors, fans and manufacturing equipment across industrial automation systems.

Typical Applications

  • Motor starters and control panels.
  • Industrial conveyors.
  • Pumps and pumping stations.
  • Fans and ventilation systems.
  • Compressors.
  • Machine tools and manufacturing equipment.
  • OEM machinery.
  • Industrial automation systems.

Technical Specifications

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Compatible With AS09–AS16, B6–B7
Mounting Type Direct mount on contactor
Device Type Thermal Overload Relay
Current Range 1.7–2.3 A
Trip Class Class 10
Current 2.3 A
Phase Three Phase
IP Rating IP20
Series T16 Thermal Overload Relays
Product code 1SAZ711201R1031
Product type Thermal overload relay
Setting range 1.7–2.3 A
Rated operational current AC-3 2.3 A
Trip class Class 10
Number of protected poles 3
Auxiliary contacts 1 NO + 1 NC
Rated operational voltage main circuit 690 V AC
Rated insulation voltage 690 V
Rated impulse withstand voltage 6 kV
Control circuit voltage 600 V AC/DC
Frequency 50 / 60 Hz
Degree of protection IP20
Connection type Screw terminals
Mounting type Direct mounting to contactor
Width 45 mm
Height 76.7 mm
Depth 53.5 mm
Weight approx. 0.10 kg
Ambient operating temperature -25 °C to +60 °C
Standards IEC/EN 60947-1, IEC/EN 60947-4-1, IEC/EN 60947-5-1

Frequently Asked Questions

What is the ABB T16-2.3 thermal overload relay used for?

It protects three-phase electric motors against overload conditions and phase failure, helping prevent motor damage and unexpected downtime.

What current range does this overload relay support?

The relay has an adjustable overload setting range of 1.7 to 2.3 A.

Does this relay include auxiliary contacts?

Yes. It includes 1 normally open (NO) and 1 normally closed (NC) auxiliary contact.

Can the relay be reset manually?

Yes. The ABB T16-2.3 offers both automatic and manual reset modes, allowing flexibility for different applications.

How is the relay installed?

The relay mounts directly onto compatible ABB mini contactors and block contactors, simplifying motor starter assembly.

Trusted by Industrial Professionals Worldwide

ABB thermal overload relays are trusted by machine builders, panel manufacturers and maintenance engineers for dependable motor protection, long service life and reliable performance in demanding industrial environments.

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We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products. 

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