Siemens 50 A SPNO Solid State Relay, Zero Crossing, Chassis Mount, Thyristor, 230 V Maximum Load

  • RS Stock No. 472-8960
  • Mfr. Part No. 3RF2150-1AA02
  • Manufacturer Siemens
Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): DE
Product Details

3RF21 Series

Compact space-saving design, 22mm width
Zero-cross switching
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


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


Zero Voltage Relays


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

Attribute Value
Minimum Load Current 0.5 A
Maximum Load Current 50 A
Mounting Type Panel Mount
Minimum Load Voltage 24 V
Maximum Load Voltage 230 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
Length 22.5mm
Depth 48mm
Control Voltage Range 15 → 24 V dc
Operating Temperature Range -25 → +60°C
Load Voltage Range 24 → 230V
Off State Leakage Current 10 mA
Minimum Operating Temperature -25°C
Height 85mm
Maximum Operating Temperature +60°C
1 In Global stock for delivery within 4 - 8 working days
Price Each
PHP 2,209.67
(exc. VAT)
PHP 2,474.83
(inc. VAT)
Per Unit
1 +