Description

Schneider LR9G115 | Electronic thermal overload relay,TeSys Giga,28-115 A,class 5E-30E,push-in control connection

The Schneider LR9G115 is an advanced electronic thermal overload relay from the TeSys Giga series, designed to provide precise and reliable protection for motors and electrical circuits against thermal overloads. With a current range of 28 to 115 A and a class 5E-30E time delay, this electronic relay offers enhanced flexibility and accuracy in motor protection. The LR9G115 is built to ensure the efficient operation of industrial and commercial motor control systems, offering push-in control connections for easy installation.

Technical Specifications

Here are the key technical specifications for the LR9G115 electronic thermal overload relay:

  • Model: LR9G115
  • Brand: Schneider Electric
  • Type: Electronic Thermal Overload Relay
  • Current Range: 28 to 115 A
  • Time Delay Class: Class 5E-30E
  • Control Connection: Push-in connection for ease of installation
  • Mounting: Designed for easy integration with TeSys Giga contactors
  • Voltage Rating: Suitable for 3-phase AC motors
  • Adjustment: Adjustable settings to match the specific motor protection requirements
  • Features: Includes a digital display for easy setting and monitoring of protection parameters

Key Features

The Schneider LR9G115 electronic thermal overload relay is equipped with several key features that make it a standout choice for motor protection:

  1. Precise Protection – Provides accurate protection against thermal overload by continuously monitoring the motor’s current and temperature.
  2. Wide Current Range – With a range of 28 to 115 A, it is suitable for a variety of motor sizes and industrial applications.
  3. Class 5E-30E Time Delay – The relay features an adjustable time delay class, providing flexibility for different operational conditions and ensuring reliable motor protection.
  4. Push-In Control Connection – Allows for quick and secure installation with push-in technology, simplifying wiring and reducing installation time.
  5. Digital Display – The built-in digital display makes it easy to monitor settings and adjust the relay according to specific protection needs.
  6. Durability and Reliability – Designed to withstand demanding industrial environments, ensuring long-lasting protection even under harsh conditions.
  7. Enhanced Safety – Prevents motor overheating and potential damage caused by overcurrent conditions, reducing the risk of equipment failure and downtime.

    Applications

    The LR9G115 electronic thermal overload relay is ideal for protecting motors and electrical equipment in a wide range of industrial and commercial applications:

    1. Motor Protection – Provides thermal overload protection for motors, ensuring reliable operation and preventing damage from sustained overcurrent conditions.
    2. Industrial Machinery – Used in various industrial machines and systems to safeguard motors and prevent downtime caused by overloads.
    3. Pumps and Compressors – Protects motors in pumps and compressors, ensuring the safe and efficient operation of these critical systems.
    4. HVAC Systems – Ideal for use in heating, ventilation, and air conditioning systems, offering protection for motors in these energy-intensive applications.
    5. Conveyor Systems – Ensures the protection of motors in conveyor systems, preventing failure and minimizing maintenance costs.
    6. Automation Systems – Applied in automated industrial systems, offering motor protection to ensure continuous and smooth operation of machinery.

Additional information

brands

Schneider Electric

Specifications

Main
Range TeSys
product name TeSys LRG
Product or component type Electronic thermal overload relay
Device short name LR9G
Relay application Motor protection
network type AC
Thermal overload class Class 5E...30E conforming to IEC 60947-4-1
Thermal protection adjustment range 28…115 A
Complementary
Network frequency 30...60 Hz 100 Hz
overvoltage category III
Tripping threshold 1.125 +/- 0.07 In conforming to IEC 60947-4-1
Protection type Ground fault protection - tripping time adjustment: 0…1 s - for alarm circuit conforming to IEC 60947-4-1 Ground fault protection - tripping time adjustment: 0…1 s - for alarm circuit conforming to UL 60947-4-1 Phase loss - tripping time adjustment: 0…4 s - for alarm circuit Phase imbalance - tripping time adjustment: 0…5 s - for alarm circuit conforming to IEC 60947-4-1 Phase imbalance - tripping time adjustment: 0…5 s - for alarm circuit conforming to UL 60947-4-1
Local signalling LED Trip indicator
Contacts type and composition 1 NO + 1 NC
[Ith] conventional free air thermal current 5 A
[Uc] control circuit voltage 24...500 V AC 50/60 Hz 24...250 V DC
[Ue] rated operational voltage 1000 V AC 50/60 Hz
[Uimp] rated impulse withstand voltage 8 kV
Reset Automatic reset Manual
Mechanical durability 7000 cycles
Surge withstand 4 kV
Electromagnetic compatibility EMC immunity conforming to IEC 60947-4-1 Emission tests criteria A conforming to IEC 60947-4-1 Immunity to radiated radio-electrical interference - test level: 20 V/m conforming to EN/IEC 61000-4-3 Voltage dips and interruptions immunity test conforming to SEMI F47
Connections - terminals Power circuit: bar - busbar cross section: 25 x 6 mm Power circuit: lugs-ring terminals 1 185 mm² Control circuit: push-in 1 0.2…2.5 mm² - cable stiffness: solid stranded without cable end Control circuit: push-in 1 0.25…2.5 mm² - cable stiffness: flexible with cable end Control circuit: push-in 2 0.5…1.0 mm² with cable end
Tightening torque 18 N.m
Mounting support Direct on contactor Plate
Standards EN/IEC 60947-4-1 EN/IEC 60947-5-1 UL 60947-4-1 CSA C22.2 No 60947-4-1 JIS C8201-4-1 JIS C8201-5-1 IEC 60335-1:Clause 30.2 IEC 60335-2-40:Annex JJ UL 60335-2-40:Annex JJ UL 60335-1
Product certifications CB Scheme CCC cULus UKCA ATEX EU-RO-MR by DNV-GL EAC
Environment
IP degree of protection IP2X front face with shrouds conforming to IEC 60529 IP2X front face with shrouds conforming to VDE 0106
Protective treatment TH
Ambient air temperature for operation -25…60 °C
Ambient air temperature for storage -60…80 °C
Permissible ambient air temperature around the device -40…60 °C at Uc
Adjustment of dial setting -25…60 °C
Mechanical robustness Vibrations 5…300 Hz 6 gn contactor open Shocks 15 gn 11 ms contactor closed
Height 107 mm
Width 105 mm
Depth 126 mm
Product weight 0.9 kg
Colour Dark grey
Packing Units
Unit Type of Package 1 PCE
Number of Units in Package 1 1
Package 1 Height 17.000 cm
Package 1 Width 20.000 cm
Package 1 Length 21.000 cm
Package 1 Weight 1.416 kg
Unit Type of Package 2 S03
Number of Units in Package 2 2
Package 2 Height 30.000 cm
Package 2 Width 30.000 cm
Package 2 Length 40.000 cm
Package 2 Weight 3.430 kg
Unit Type of Package 3 P06
Number of Units in Package 3 16
Package 3 Height 75.000 cm
Package 3 Width 60.000 cm
Package 3 Length 80.000 cm
Package 3 Weight 35.500 kg

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