40 amps Breaker Control Switch

Specification:

Switron control switches comply with IS-6875 Part 1,2, & 3 1983 for utilization categories DC 11 & AC 11. As motor control applications switches comply with IS 4064 Part 1 & 2 AC3 category:

Electrical Data:
• Thermal current: 40 A
• Continuous current: 32 A
• Operational voltage DC/AC: 660 volts
• High voltage test: 2.5 KV (R.M.S)
• Ambient temperature: 55°C
• Frequency of operations: 300 cycles/hour
• Mechanical life: 1 million operations
• Electrical life (AC inductive): 2.5lakh Operations
• DC breaking capacity of each contact 2.5A at 250V DC L/R-20 M Sec
• DC breaking capacity can be increased by using multiple series contacts for specific applications

Switron Control switches are mainly categorized into

1) Breaker Control Switches
2) Programme Control Switches
3) Motor Control Switches

Breaker Control Switches
Breaker Control Switches are essentially spring return switches having spring return from either sides of neutral position at 45°, Other switching angles such as 30°, 60° and 90° can be provided on request.
These switches can be provided with following features.
a) Lost Motion Contacts (NAT & NAC):
In addition to main breaker contacts, lost motion contacts can be provided at rear side of switch that indicate last operated position of breaker. These contacts are also known as Bell Alarm contacts. Any number of NAC & NAT contacts can be provided.
b) Sequence Locking Device:
This is a mechanical device incorporated in the spring return switch which prevents any two successive operations. Generally successive closing operations are prevented, keeping trip free.
c) Center Key Lock:
To prevent unauthorized operation of the switch, center key lock can be provided on the top switch. It is lockable only in four positions at 90° (0°, 90°, 180°, 270°)

Two varieties of locks available:
1) Lever Lock (L).
2) Tee type or Wing Type Lock (T).

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