Rotary Auxiliary Cam Switches

Rotary Auxiliary Switches


Rotary Auxiliary Cam Switches are modular in design and versatile. They can switch between a.c as well as low voltage d.c. resistive & inductive loads. They are used as auxiliary contacts in equipments such as MV and HV - Vacuum Circuit Breakers, Gas Circuit Breakers, Isolators and various other equipments. It is linked mechanically to the equipment and follows the position as per linage. In most cases a straight motion of main contacts is converted into rotational through links and levers. These switches offer the advantage of having unlimited combinations of switching angles and indexing angles.

Features & Specification

  •  Cams used for contacting, makes it suitable for switching in various programmable combinations
  •  Silver alloy contacts have very high durability and endurance
  •  A double break contact for positive making and breaking
  • Modular design for multiple poles with minimum components
  •  Superior insulating material for electrical and mechanical stability


  AXR-10 AXR-16 AXR-20 AXR-25 AXR-32
Coventional free Air Thermal
Current Ratting(Ith)
10A 16A 20A 25A 32A
Operational Voltage 240A 240A 440A 440A 440A
Operational Current a.c. 10A 16A 20A 25A 32A
Operational Current d.c. 1.0A 1.0A 1.5A 2.0A 2.0A
Utilization Category AC-15A
Dielectrical Strength 2.5kv 2.5kv 2.5kv 2.5kv 2.5kv
Insulation Resistance ≥ 500 mohm ≥ 500 mohm ≥ 500 mohm ≥ 500 mohm ≥ 500 mohm
Mechanical Life 5,00,000 opr 5,00,000 opr 5,00,000 opr 1 million opr 1 million opr
Electrical Life 1,00,000 opr 1,00,000 opr 1,00,000 opr 2,00,000 opr 2,00,000 opr