E. Dold & Söhne GmbH & Co. KG

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E-Mail: dold-relays@dold.com

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Solid-state relay / contactor with load current measurement

PH 9270/003

Auxiliary voltage

Load voltage

Load current

Semiconductor output

Analogue output


  • 0064913
  • PH9270.91/003/02 AC24-240V AC25A
The solid-state relay PH 9270 with two thyristors connected in anti-parallel is designed as a... more

Product description

The solid-state relay PH 9270 with two thyristors connected in anti-parallel is designed as a zero-voltage switch. When the control voltage is applied, the output of the solid-state relay is activated at the next zero crossing of the sinusoidal mains voltage. After the control voltage is removed, the solid state relay switches off again at the next zero crossing of the load current.

The solid-state relay with its 0 ... 10 V or 4 ... 20 mA analogue output is particularly suitable for heating processes where faults need to be detected as early as possible. It enables continuous monitoring of the load current and offers a wide range of applications thanks to its fast and silent switching, e.g. in injection moulding machines in the plastics and rubber industry, in thermoforming and packaging machines or in the food industry.

Technical specifications

Widths: 45 mm
Number of poles: 1-pole
Load voltage up to: AC 480 V
Load current up to: 45 A
On/Off Input Control: DC
Signalling output: Yes
Type: PH 9270/003


  • Free from wearing, noiseless, economic
  • High productivity by integrated monitoring functions
  • Accurate AC / DC measurement up to 45 A
  • Analogue output for easy working with signals to PLC or displays
  • Excellent EMC- performance, because of switching at zero crossing
  • As option protection against thermal overload


  • AC solid-state relay /-contactor with load current measurement (runs value)
  • Analogue output DC 0 ... 10 V
  • According to IEC/EN 60947-4-3
  • Nominal voltage up to AC 480 V
  • Load current up to 45 A, AC-51
  • Switching at zero crossing
  • DCB technology (direct bonding method) for excellent heat transmission properties
  • LED indicator for control
  • As option with optimized heat sink, for DIN rail mounting
  • Width: 45 mm