Siemens 20 A SPNO Solid State Relay, Zero Crossing, Chassis Mount, Thyristor, 460 V Maximum Load

  • RS Stock No. 472-9036
  • Mfr. Part No. 3RF2120-1AA04
  • Manufacturer Siemens
Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
Product Details

3RF21 Series

Compact space-saving design, 22mm width
Zero-cross switching
IP20
Mount onto existing heatsinks
Efficient thyristors with high reverse voltage
Screw connections for fast and simple connection
Self-contained unit
Isolation voltage 600Vac
Frequency 50 / 60Hz

Note

Heat sink not included. For load current de-rating and heat sink details see manufacturers datasheet

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Zero Voltage Relays

Note

Temperature can affect current rating; please consult the data sheet for potential derating.

Specifications
Attribute Value
Minimum Load Current 0.1 A
Maximum Load Current 20 A
Mounting Type Panel Mount
Minimum Load Voltage 230 V
Maximum Load Voltage 460 V
Minimum Control Voltage 15 V dc
Maximum Control Voltage 24 V dc
Switching Type Zero Crossing
Contact Configuration SPNO
Terminal Type Screw
Output Device Thyristor
Maximum Turn On Time 1 (+1/2 cycle) ms
Dimensions 22.5 x 48 x 85mm
Height 85mm
Off State Leakage Current 10 mA
Length 22.5mm
Operating Temperature Range -25 → +60°C
Minimum Operating Temperature -25°C
Maximum Operating Temperature +60°C
Depth 48mm
Control Voltage Range 15 → 24 V dc
Load Voltage Range 230 → 460V
11 Within 5 working day(s) (Global stock)
19 Within 5 working day(s) (Global stock)
Price (ex. GST) Each
$ 96.83
(exc. GST)
$ 111.35
(inc. GST)
units
Per unit
1 - 2
$96.83
3 - 4
$88.37
5 +
$83.07
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