ARM5 series drawer base

1、 Core role
1.Realize three position switching
There are three positions for connection, testing, and extraction: the connection position provides normal power supply; The main circuit of the test site is powered off and the secondary circuit is powered on, which can be safely debugged; Pull out the position and completely physically disconnect, forming a visible power outage breakpoint.
2.Safe isolation
After extraction, there is a clearly visible insulation gap, and there is no risk of electric shock or misoperation during maintenance, meeting electrical safety regulations.
3.Quick maintenance and replacement
Without dismantling the main and secondary cables, the circuit breaker body can be directly removed for maintenance and replacement without damaging the cabinet wiring.
4.Anti misoperation interlock
Only when the circuit breaker is opened can it be pulled in and out, and the connection cabinet door cannot be opened to avoid load insertion and accidental contact with live parts structurally.
5.Integrated transfer circuit
Integrate auxiliary contacts, shunt/undervoltage trip and other accessories, unify the transfer of main circuit and secondary line, simplify cabinet wiring.
2、 Main advantages
1.Safer operation and maintenance: providing visible isolation breakpoints, combined with mechanical interlocking, significantly reducing the risk of electric shock and arc during maintenance.
2.High maintenance efficiency: No need to disconnect the wires, and the replacement time for circuit breakers has been reduced from several hours to just over ten minutes.
3.Uninterrupted power supply: Critical circuits can quickly replace backup circuit breakers, suitable for scenarios such as factories and data centers where power outages cannot last for a long time.
4.Modular universality: Circuit breakers of the same specifications are interchangeable, spare parts are unified, and later expansion and renovation are more flexible.
Neat wiring: using contact plugs, the cabinet's wiring is organized, and the heat dissipation and insulation are better.

ARM5/ARM5E(i) drawer base dimensions and installation dimensions

Figure 1 ARM5 Series POPB Installation Dimension Drawing