CHINT LMI-13 Mechanical Interlock,
is designe for use with two-stage or multi-stage circuit breakers to prevent simultaneous operation of two power sources.
It ensures safe manual switching between dual power supplies in low-voltage distribution systems.
With a compact 9mm width, wide –35°C to +70°C temperature range,
and simple DIN-rail mounting, the LMI-13 provides reliable mechanical isolation for residential, commercial, and industrial electrical installations
- Function: Manual switching of dual power supply; prevents simultaneous operation of two main circuits.
- Application: Residential, commercial, and industrial distribution systems
- Operating Temperature Range: –35°C to +70°C
- Altitude: ≤ 3000 m
- Humidity Conditions: ≤ 50% at +40°C and ≤ 90% at +20°C
- Pollution Degree: Grade 2
- Installation Category: Class II and III
- Pole Number: 1P
- Product Width: 9 mm
- Assembly Method: Mounted between two or more stage circuit breakers (e.g., eBG)
- Mounting Type: DIN-rail installation
- Dimensions (mm):
- Height: 76.5
- Width: 9.0
- Depth: 45.5
- Mounting distance: 22.5 mm
- Material: Flame-retardant engineering plastic housing.

