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  .Contactor Selection Guide

 

 

 

 

 

 

 

 

 

Dimensions
USER'S INSTRUCTION
 Attention:
 . Turn off power before carrying out any maintenance.
 . Please handle carefully and avoid abnormal vibration and shock.
 . The dust-proof label on the side of frame must be tear off clearly, if side-  mounted auxiliary contact block or mechanical interlock is used.
 
 . To dismantle the magnetic contactors which is mounted by DIN 35mm rail,     right^- ̄screwdriver shall be applied and handled in running direction.
 . A minimum clearance of 8mm and a minimum creepage distance of 12mm has to be ensured by the installation.
 
 1. Service Environment

 1.1 Operational Temperature: -20<c~50<c.
 1.2 Storage Temperature: -40<c~70<c.
 1.3 Relative Humidity: 45%~85%.
 1.4 Altitude: below 2000m.

 2. Installation and wiring

 2.1 Ensure that the specifications (Rated power, arrangement of auxiliary  contact, rated coil voltage and frequency) meet the requirements.
 2.2 Mounting positions shall be within the rages specified below.
 2.3 Select appropriate conductor and tighten with appropriate torque with right  tool.
 2.4 Tightening torques for contactors are given below:
Type
Item
Screw/blot
Tighting torque (kgf.cm)
TC11
Main Terminal
M3.5
8~12
TC16
Main Terminal
M3.5
8~12
TC21
Main Terminal
M4
12~20
TC30/35/40
Main Terminal
M5
20~25
TC50/60
Main Terminal
M6
35~40
All Series
Main Terminal
M3.5
8~12

Tightening torque shall be within the values given above to avoid deteriorating the screws.
 3.Maintenance:

 
3.1 Turn off power before conducting any maintenance.
  3.2 Disconnect the wires in sequence.
  3.3 Dismantle contactor as required for maintenance.
  3.4 Assemble and connect the contactor in reverse procedures conducted in steps 3.3and 3.2.
  3.5 Check the contactor in a good condition.

 4.Replacement of the coil:

 
Follow the instructions if replacement of the coil is carried out.
  4.1 Dismantle the contactor in appropriate means.
  4.2 Replace the coil to requested coil.
  4.3 Assemble the contactor in a reverse sequence conducted in step 4.1.
  4.4 Check that the contactor can be operated normally.

TEND TECHNOLOGY CO., LTD.