Machine Power & Motor Control Switches

Rotary Cam Switches

Application

Rotary switches are used for controlling, automating and monitoring movements of a machine. These switches are used successfully as control switch on CNC machines, stamping machines, forging presses, sheet metal forming machines, welding machinery, machine tools, packaging machine, assembly machinery, transfer lines, transport equipment, lifts & elevators, Construction machinery, mining equipment, steel plants and in the off-road automobile industry.

Features & Specification

  • Attractive Combination of colors for knob, Handle & Escutcheon plates.
  • Silver alloy contacts used have a very high durability.
  • Pad locking and lockable handles available for additional security and safety.
  • A double break contact ensures positive making
  • Cams used for contacting makes it suitable for switching in various programmable combinations.
  • Modular design to achieve any number of poles wi.

Construction

This Switch is designed to operate electric motors and hence conforms to motor duty test for reversing and forwarding as well as inching of electric motor. They principally offer large number of possible switching combinations with consistent quality and reliability. They are modular in design with contact housing stacked with indexing mechanism. The operating knob is attached to steel shaft that rotates the cams which drive the contacts to an unlimited combinations of contact programs.

Conventional Free air Thermal Current(Ith) 10A 16A 20A 25A 32A 40A 63A
Rated Operational volatge (Ue)a.c. 440V 440V 440V 440V 440V 440V 440V
Rated Operational volatge (Ie)a.c. 10A 16A 20A 25A 32A 40A 63A
Rated Operational volatge (Ie)d.c. 1A 1A 1A 2A 2A 2A 2A
3∅ Motor Ratings @ 440/460VAC 2.0 HP 3.0 HP 5.0 HP 7.5 HP 10.0 HP 12.5 HP 25.0 HP
(*Reduce rating by 1/2 for 1∅)
Utilization Category AC - 23A,
DC - 13A
AC - 23A,
DC - 13A
AC - 23A,
DC - 13A
AC - 23A,
DC - 13A
AC - 23A,
DC - 13A
AC - 23A,
DC - 13A
AC - 23A,
DC - 13A
Dielectric Strength 2.5 kV 2.5 kV 2.5 kV 2.5 kV 2.5 kV 2.5 kV 2.5 kV
Rated impulse withstand voltage (Uimp) 2.5 kV 2.5 kV 2.5 kV 3 kV 3 kV 4 kV 4 kV
Insulation Resistence ≥ 500 MΩ ≥ 500 MΩ ≥ 500 MΩ ≥ 500 MΩ ≥ 500 MΩ ≥ 500 MΩ ≥ 500 MΩ
Standard Mounting 2 Hole (mm) M3 - 25
CTC
M3 - 25
CTC
M3 - 25
CTC
- - - -
Standard Mounting 4 Hole (mm) M4 - 36
CTC
M4 - 36
CTC
M4 - 36
CTC
M5 - 49.5
CTC
M5 - 49.5
CTC
M3 - 48.0
CTC
M3 - 68.0
CTC
Mechanical Life (operations) 3,00,000 3,00,000 3,00,000 3,00,000 3,00,000 3,00,000 3,00,000
Electrical Life (operations) 1,00,000 1,00,000 1,00,000 1,00,000 1,00,000 1,00,000 1,00,000
Conforms to standard IS/ IEC - 60947 -3