SRMC12-115~630 AC contactor mechanical interlocking mechanismDetailed product description：

The mechanical interlocking mechanism of SRMC12-115~630 AC contactors can be combined with SRMC12 series AC contactors, mainly used in the forward and reverse rotation and energy consumption braking AC lines of electric motors to prevent line short circuit faults caused by misoperation.  
This institution is applicable to reversible contactors consisting of SRMC12 AC contactors installed vertically and horizontally.  
This organization complies with standards such as IEC60947-1-4 and GB14048.4.

Normal working and installation conditions
1. The ambient air temperature ranges from -5 ℃ to+40 ℃. The average value within 24 hours shall not exceed+35 ℃;
2. Altitude: not exceeding 2000m
3. Atmospheric conditions: At+40 ℃, the relative humidity of the air does not exceed 50%; At lower temperatures, there can be higher relative humidity, with an average minimum temperature of no more than+25 ℃ in the wettest month and an average maximum relative humidity of no more than 90% in that month, taking into account condensation that may occur on the product due to temperature changes;
4. Installation conditions: The inclination between the installation surface and the vertical surface shall not exceed 5 °;
5. Impact vibration: The product should be installed and used in a place without significant shaking, impact, and vibration.

Main parameters and technical performance of SRMC12-115~630 AC contactor mechanical interlocking mechanism

When the mechanical interlocking mechanism and two SRMC12 contactors form a reversible contactor, when the moving and stationary contacts of one contactor just make contact, push the other contactor to make the two interlocking components collide. At this time, the gap between the moving and stationary contacts is shown in the table below.
2. Mechanical lifespan
The mechanical lifespan of mechanical interlocking is 3 million cycles for SRMJLC-FF and SRMJLS-FF, and 2 million cycles for the rest

model	Gap mm
SRMC12-115N~150N	≥5.5
SRMC12-185N~225N	≥5.5
SRMC12-265N~330N	≥6
SRMC12-400N~500N	≥6.5
SRMC12-630N	≥7