Omron 20 A Solid State Relay, Zero Crossing, Chassis Mount, Triac, 440 V Maximum Load

  • RS Stock No. 513-3638
  • Mfr. Part No. G3PA-420B-VD DC12-24
  • Manufacturer Omron
Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
Product Details

DIN Rail Mount SSR's

Replaceable SSR power cartridge
DIN rail or surface mounting options
Finger protected terminals
LED input status indicator
Thermal overload indicator changes colour permanently to indicate possibility of a damaged power cartridge
Inputs may be ’commoned’ via integral linking terminals
Release Voltage 1 Vdc (Min)
Operating Temperature Range -30 to +80°C




G3PA-420B-VD DC12-24 SSR – Solid State Relay with Replaceable Power Cartridge.

The design of the heat sink provides a smaller SSR – solid state relay with easily maintained replaceable element cartridges. The relays are applicable with 3-phase loads. The G3PA series of SSR – solid state relays can be DIN rail mounted or mounted using screws.

Features and Benefits of G3PA-420B-VD DC12-24 SSR –Solid state relay.

• Phototriac coupler.
• Zero cross function.
• Indicator.
• Rated output load 20 A at 200 to 240 V ac.
• Rated input voltage 12 to 24 V dc.

SSR – Solid state relay Input Rating at 25°C ambient.

• Operating voltage range 9.6 to 30 V dc.
• Input current impedance 7 mA max.
• Must operate voltage 9.2 V dc max.
• Must release voltage 1 V dc.

SSR – Solid state relay Output.

• Rated load voltage 200 to 400 V ac, 50 / 60 Hz.
• Load voltage range 180 to 440 V ac, 50/ 60 Hz.
• Load current 0.5 to 20 A at 30°C.
• Inrush current 220 A, 60 Hz, 1 cycle.
• VDRM 1000 V.

Additional Features G3PA-420B-VD DC12-24 SSR – Solid State Relay.

• Operate and release time of load power source cycle + 1 ms max (DC models). 1 pf load power source cycle + 1 ms max (AC input).
• Output ON voltage drop 1.8 V (RMS) max.
• Leakage current 20 mA max at 400 V ac.
• Vibration resistance – destruction – 10 to 55 to 10 Hz, 0.375 mm single amplitude mounted to a DIN rail.
• Shock resistance – destruction – 300 m/s² mounted to a DIN rail.
• Operating temperature – ambient - -30°C to 80°C. No icing or condensation.
• Screw terminal.
• Relay weight 290 g.

Replacement Parts for the SSR – Solid State Relay Power Device Cartridges.

• Part number G32A-A420-VD DC12-24, Stock number 5383451 (G3PA-420B-VD DC 12-24)

Replacing the SSR – Solid state relay cartridge.

• Turn OFF the power supply when replacing a cartridge.
• Damaged cartridges can be replaced without disconnecting the wires.
• If the temperature indicator changes from pink to red triac circuits may be malfunctioning, replace.
• Improve heat radiation efficiency before cartridge replacement.

What does Zero Cross Function mean in SSR in Solid State Relays?

Zero cross function will allow the relay to turn ON when the AC load power supply approaches 0 V suppressing any noise generated with a sudden load current increase. Zero cross function is effective across 2 types of noise, noise on power lines and noise emitted into open space.



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 20 A
Mounting Type Panel Mount
Series G3PA
Maximum Load Voltage 440 V
Maximum Control Voltage 30 V
Switching Type Zero Crossing
Output Device Triac
Dimensions 100 x 37 x 100mm
Length 100mm
Maximum Operating Temperature +80°C
Depth 37mm
Control Voltage Range 9.6 → 30 V dc
Operating Temperature Range -30 → +80°C
Load Voltage Range 150 → 440V ac
Height 100mm
Minimum Operating Temperature -30°C
19 In Global stock for delivery within 4 - 8 working days
Price Each
PHP 7,581.00
(exc. VAT)
PHP 8,490.72
(inc. VAT)
Per Unit
1 - 5
6 +
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