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Safe failure protection for 1-phase 230VAC applications

The phase redundancy module PSZ-1086 ensures the supply of the AC application connected to the output in case of phase failure by automatic phase switching at the input. Each phase failure is detected and reported via the potential-free monitoring contacts. This enables the phase failure to be rectified before it affects the AC application. Downtimes are thus minimized. Due to the potential-free design, the monitoring contacts can be evaluated at any voltage level.

Phase monitoring with automatic changeover

The phase redundancy module PSZ-1086 has two input terminals for the input voltages, one output terminal for the output voltage and connection terminals for the signal contacts of the input voltage monitoring. For proper operation, two different phases, together with the neutral, are connected to both input terminals. The voltage from one of the two input terminals is looped through to the output terminal (see diagram "Bicker-PSZ-1086-sRGB-004-ENG"). Another terminal is used to connect the PE conductor. In case of failure of one phase, the PSZ-1086 module switches over to the second phase within fractions of a second, so that the uninterrupted operation of the supplied application is ensured at any time.

Potential-free monitoring and signal contacts

The status for the input voltages (phase 1 and phase 2) can be queried and further processed via two potential-free monitoring signal contacts. Both monitoring contacts signal whether a voltage is present at the respective input terminal. Figure "Bicker-PSZ-1086-sRGB-005-ENG" shows an idealized functional diagram with all possible states for the two input phases, the redundant output phase and for the associated monitoring outputs. A detailed description of the sections is also available on the website www.bicker.de/en/psz-1086.

All product features at a glance

• Phase redundancy module for 230VAC
• 1x redundant output phase
• Phase monitoring with automatic switching
• Safe protection against failure
• Potential free signal contacts
• Input/output voltage 184 to 250VAC
• Input/output current: 1.7A (Uin 230 VAC)
• Operating temperature range -30°C to +85°C
• Long term availability at least 5 years
• 3 years warranty

Direct link to PSZ-1086:
https://www.bicker.de/en/psz-1086