Dold Undervoltage relay

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Delivered between 22.1.2026 and 31.1.2026
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Output voltage3

Product details

The under-voltage relay from Dold, model IL9171.12/0300,5-20S, is a reliable monitoring relay designed for use in electrical systems. It provides precise voltage monitoring and protects against under-voltage conditions in both single-phase and three-phase applications. With a voltage measurement range of 0 to 460 V and a response value between 220 and 420 V, this relay ensures effective monitoring and response to voltage drops. Its compact design, with a width of 35 mm, a height of 90 mm, and a depth of 59 mm, allows for easy integration into existing control cabinets. The relay is equipped with two changeover contacts, offering a robust solution for voltage monitoring in industrial applications.

  • Suitable for single-phase and three-phase under-voltage protection
  • Voltage measurement range from 0 to 460 V
  • Response value between 220 and 420 V
  • Two changeover contacts for flexible applications.

Key specifications

Scope of delivery
Screw connection
Output current type
AC
Relay type
Monitoring relay
Electric current output
3 A
Output voltage
230 V
input voltage
400 V
Item number
34596129

General information

Manufacturer
Dold
Category
Relays
Manufacturer no.
0050170
Release date
17.5.2023

Relay properties

Relay type
Monitoring relay
input voltage
400 V
Output voltage
230 V
Electric current output
3 A
Output current type
AC
Switching function
Changer
Max. Switching capacity
0.69 kW
Manufacturer Type
030, IL9171.12

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
Screw connection

Product dimensions

Length
59 mm
Width
35 mm
Height
90 mm

Package dimensions

Length
13.40 cm
Width
7.70 cm
Height
5.20 cm
Weight
158 g

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