Cortalk RMU5 Generic - Solid State Relay Specifications

MOBILTEX® DATA LTD.
TITLE:
RMU5 Generic Installation and Configuration Guide
Calgary, Alberta
DOCUMENT NO.:
RMU5-MAN-001
SHEET:
19 of 69
REV:
1.10
DC Solid State MOSFET Relay Installation
Rectifier Transformer
Protected
Structure
L1
N/L2
Relay is polarity sensitive on
both the control input and
contacts.
Flyback protection diode and
transient protection diode
must be selected according to
relay manufacturer’s
specifications.
Rectifier Assembly
Rectifier
Bridge
-
+
~
~
Flyback Protection
Diode
Normally Open DC
Solid State MOSFET
Relay
+-
+-
Transient Protection
Diode
Figure 11 DC Solid State MOSFET Relay Installation
4.2.5.1 AC Solid State Relays
The preferred relay to use in most cases is the AC solid state TRIAC relay on the primary-side of the rectifier transformer.
Mobiltex has several standard AC relays and heatsinks available as optional components for the RMU5.
K0513245010
AC Relay - 24-280 VAC RMS 50 Amps max. 0-8A=No Heatsink, 8-50A=HE-54
K0513211010
AC Relay - 24-280 VAC RMS 110 Amps max. 0-8A=No Heatsink, 8-60A=HE-54, 60-110A=HE-90
K0513285010
AC Relay - 48-530 VAC RMS 50 Amps max. 0-8A=No Heatsink, 8-50A=HE-54
Figure 12 Mobiltex Standard Single Phase Solid State AC Relays
All 3 relays are about the same physical size and look very similar. The heatsink requirements are listed above. These
relays can be used to either interrupt the primary line AC (for 120 & 230 volt rectifiers) or the secondary AC of the
rectifier.
K05232R5016
AC Relay - 3 phase, 48-530 VAC RMS 50 Amps max. 0-4A=No Heatsink, 4-30A=HE-90