Rectifiers
38
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2021 KEB America, Inc.
7 Rectifiers
Several rectifiers are available for the COMBISTOP Load Brake. Size 04 KEB rectifiers
can be used on the AC side or for simultaneous AC and DC side switching. An over-
excitation or OEX switch is also available for simultaneous AC and DC side switching.
Simultaneous AC and DC side switching guarantees short disconnecting times and
reduces contact erosion. For simultaneous switching it is recommended to also use a
MOV on the DC side.
AC side switching will yield slower switching times but requires no protective measures
for the coil and switching contacts.
7.1 Example Wiring Diagrams
7.1.1 AC Side Switching
AC Side – Relay Switching – Phase to Neutral
Switching: AC Side
Rectifier: Full-wave
Model Number: 0291020-CE07
Line Voltage: 120VAC
Input Voltage: 120VAC
Coil Voltage: 105VDC
F
brk
= Class CC fuse max. 5A Relay Contact: 120VAC 5A
Figure 22 Rectifier Wiring AC Side Switching - Relay Switching - Phase to Neutral
