Datasheet

Solid-State Switching Devices for Resistive Loads
General data
4/63
Siemens IC 10 · 2011
4
Order No. scheme
Note:
The Order No. scheme is presented here merely for information
purposes and for better understanding of the logic behind the
order numbers.
For your orders, please use the order numbers quote in the
catalog in the Selection and ordering data.
■ Benefits
Characteristics
• Considerable space savings thanks to a width of only 22.5 mm
• Variety of connection methods: Screw terminals, spring-type
terminals or ring terminal lugs, there is no problem – they are
all finger-safe
• Flexible for all applications with function modules for retrofitting
• Possibility of fuseless short-circuit proof design
Advantages
• Saves time and costs with fast mounting and commissioning,
short start-up times and easy wiring
• Extremely long life, low maintenance, rugged and reliable
• Space-saving and safe thanks to side-by-side mounting up to
an ambient temperature of +60 °C
• Modular design: Standardized function modules and heat
sinks can be used in conjunction with solid-state relays to sat-
isfy individual requirements
• Safety due to lifelong, vibration-resistant and shock-resistant
spring-type terminal connection method even under tough
conditions
■ Application
Applications
Example: Plastics processing industry
Thanks to their high switching endurance, SIRIUS solid-state
switching devices are ideally suited for use in the control of elec-
trical heat. This is because the more precise the temperature
regulation process has to be, the higher the switching frequency.
The accurate regulation of electrical heat is used for example in
many processes in the plastics processing industry:
• Band heaters heat the extrudate to the correct temperature in
plastic extruders
• Heat emitters heat plastic blanks to the correct temperature
• Heat drums dry plastic granules
• Heating channels keep molds at the correct temperature in or-
der to manufacture different plastic parts without defects
The powerful SIRIUS solid-state relays and contactors can be
used to control several heating loads at the same time. By using
a load monitoring module the individual partial loads can easily
be monitored, and in the event of a failure a signal is generated
to be sent to the controller.
Use in fuseless load feeders
Short-circuit protection and line protection with miniature circuit
breakers is easy to achieve with SIRIUS solid-state relays and
solid-state contactors in comparison with designing load feed-
ers with fuses. A special version of the solid-state contactors can
be protected against damage in the case of a short circuit with
a miniature circuit breaker with type B tripping characteristic.
This allows the low-cost and simple design of fuseless load feed-
ers with full protection of the switchgear.
Digit of the Order No. 1st -
3rd
4th 5th 6th 7th 8th 9th 10th 11th 12th
@@@ @ @ @ @ – @ @ @ @ @
Solid-state switching devices 3 R F
SIRIUS solid-state switching device generation @
Design @
Type current @ @
Connection type @
Switching function @
Single-phase or number of controlled phases @
Rated control supply voltage @
Rated operational voltage @
Example
3 R F 2 1 2 0 – 1 A A 0 4
© Siemens AG 2010