Dold AA9943.12 3AC50-400H UNDERVOLTAGE RELAY AA9943123AC5040

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Delivered between 24.1.2026 and 3.2.2026
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Product details

The Dold undervoltage relay AA9943.12 is a reliable and powerful device designed for use in industrial applications. It offers an input voltage of 380 volts and is suitable for frequencies ranging from 50 to 400 Hz. This relay is designed to ensure the safety of electrical systems by automatically shutting down in the event of undervoltage. With two normally open and two normally closed contacts, it allows for flexible integration into various circuits. Made in Germany, it represents high quality and durability. The device is not suitable for smart home applications but offers a high number of switching cycles, making it a robust choice for demanding environments.

  • Input voltage of 380 volts for industrial applications
  • Frequency range of 50 to 400 Hz
  • Two normally open and two normally closed contacts for flexible switching options
  • High number of switching cycles for durability and reliability.

Key specifications

Scope of delivery
Undervoltage relay AA9943.12 3AC50-400HZ 220380V
Output current type
AC
Relay type
Monitoring relay
Electric current output
0.40 A
Output voltage
380 V
Number of poles
3x
Item number
43680828

General information

Manufacturer
Dold
Category
Relays
Manufacturer no.
0014632
Release date
7.3.2024

Relay properties

Relay type
Monitoring relay
Output voltage
380 V
Electric current output
0.40 A
Output current type
AC
Number of openers
2x
Number of closers
2x
Number of poles
3x
Manufacturer Type
AA9943.12 3AC50-400HZ 220380V

Smart home features

Smart Home
Not compatible

Origin

Country of origin
Germany

Voluntary climate contribution

CO₂-Emission
Climate contribution

Scope of delivery

Scope of delivery
Undervoltage relay AA9943.12 3AC50-400HZ 220380V

30-day right of return
24 Months Warranty (Bring-in)

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Reviews & Ratings

Warranty score

How often does a product of this brand in the «Relays» category have a defect within the first 24 months?

Source: Digitec Galaxus
  • Dold
    Not enough data
  • 1.ABB
    0 %
  • 1.Finder
    0 %
  • 1.Metz Connect
    0 %
  • 1.Phoenix Contact
    0 %

Warranty case duration

How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?

Source: Digitec Galaxus
  • Dold
    Not enough data
  • 1.Siemens
    0 days
  • 2.Shelly
    2 days
  • ABB
    Not enough data
  • Aqara
    Not enough data

Return rate

How often is a product of this brand in the «Relays» category returned?

Source: Digitec Galaxus
  • Dold
    Not enough data
  • 1.Tru Components
    0 %
  • 2.Schalk
    0.6 %
  • 3.Phoenix Contact
    0.9 %
  • 4.Metz Connect
    1 %
Source: Digitec Galaxus