Lauritz Knudsen Switch

Our product range includes a wide range of lt thermal overload relay, lt mccb, l t contractors, l&t fn main switch, l&t mpcb and l t mcb switch.

Lt Thermal Overload Relay

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Number Of Poles3 Pole
Country of OriginMade in India
APS0.15-0.25A
voltage415V
BrandL K
Thermal Overload Relays, available from 0.15A to 42A complement the ML range of power contactors. The relays can be directly mounted over ML contactors and provide protection against overload conditions

Lt Mccb

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Number of Poles4 Pole
Breaking Capacity10kA
Country of OriginMade in India
Frequency (Hz)50/60 Hz
Operational voltage (Ue)415V AC
  • The DY Series, a new generation of MCCBs, stands out due to its state-of-the-art design, contemporary user-friendly features, ergonomics, aesthetics and compactness.
  • DY Series complies with the latest standards like IS/IEC 60947-2, IEC 60947-2 & EN 60947-2.
  • The range is specially designed for tropical conditions, ensuring reliable performance at high ambient and humid environments.
  • The range can satisfy the most demanding system requirements.
  • The DY Series, having a wide range of accessories, ensures operational safety, reliability and versatility.
  • The products conform to international standards, carry CE marking.

L T Contractors

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Switching Current16A
PhaseSingle Phase
Country of OriginMade in India
  •  power contactor are mainly used in motor feeder ad control system applications.
  • The range is availabe from 9A to 650A (AC-3) and provides a relaible performance across diverse condition like high ambient temperature, humidity etc.
  • Standardized accessories and spares are available for the entire range

L&t Fn Main Switch

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Current400 A
Changeover TypeDisconnectors
Switch ControlAutomatic
No. of PhasesSingle Phase
No. of Poles3 Poles
Voltage415 V
Lauritz Knudsen (Formerly L&T Switchgear) FN Switch Disconnector Fuse 400 A, TPN, Open Execution, DIN Type, 415 V AC

L&t Mpcb

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Current Rating1.6A
Number of PolesDouble Pole
Country of OriginMade in India
Voltage220V
Frequency50 Hz
Motor Protection Circuit Breakers (MPCBs). Here are some key features and considerations for LT MPCBs:
1. **Motor Protection**: MPCBs are designed specifically to protect electric motors from overloads, phase failure, short circuits, and other electrical faults.   2. **Product Range**: LT offers MPCBs in various models and sizes to suit different motor ratings and applications.   3. **Features**:   - **Adjustable Thermal Overload Protection**: MPCBs typically include adjustable thermal overload settings to match the motor's rated current and provide reliable protection.   - **Short Circuit Protection**: Built-in short circuit protection features to quickly disconnect the motor in case of a fault.   - **Phase Failure Protection**: Some MPCBs include phase failure detection to prevent motor damage due to phase loss.   - **Manual Reset**: MPCBs often have a manual reset feature to ensure safe restart after a trip condition.   - **Diagnostic Indicators**: LED indicators or trip flags for visual indication of the circuit breaker status.
4. **Certifications**: Ensure that the MPCBs comply with relevant international standards and certifications for safety and performance.

L T Mcb Switch

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Number of Poles4 Pole
Curve TypeC Curve
Rated Current20A
Triping CharacteristicsC Curve / EL+MCB
Rated Short-circuit Breaking Capacity6kA
  • RCBOs provides protection from overload, short-circuit and earth leakage


Operating Temperature Range -5°C to +40°C
Electrical life (Operating Cylces) 10000
Tightening Torque 3Nm
Termination capacity 25 Sq. mm (Rigid)

Lt Isolator

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Rated Voltage4KV
Rated Current80A
BrandLK (LT)
Mounting TypeVertical
TypeInsulator
MaterialPlastic
Isolators are used in electrical installations to make, carry and break circuit current
  • The Isolator ensures that the circuit remains completely isolated
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    Rajesh (Partner)
    K B Enterprises
    85, Somasundaram MIll Road
    Coimbatore - 641009, Tamil Nadu, India

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