Single-phase transformers for mining industry ET1SG**

Transformers are designed for supply of electrical devices in mining industry
In standard design, the transformers are adjusted to fastening by means of a base welded into core or screwed angles.
If agreed, the transformers may have more tappings. The windings terminals may be placed on one side only, or on both sides of a transformer. Upon request, the transformers may be assembled in enclosures with the protection degree of IP 23, IP 44 and IP 54 with the possibility to insert supply cables through glands.

Product for:


Design Single-phase transformers for mining industry ET1oG, ET1SG are produced in accordance with requirements of relevant transformer standards and
PN-G-50003 or BN-82/0466-03 (Polish branch standars)
Insulation class

B(130oC) - standard up to 1,6 kVA; F(155oC) - standard above1,6 kVA

Climatic class
/ Environmental class

C2/E1 - mining design

Ambient temperature 45oC
Protection degree IP 00
Protection class I
Frequency 50/60 Hz
Primary voltage up to 1000 V
Secondary voltage up to 1000 V
Terminals screw terminal blocks, cable lugs or
copper bus bars
Fastening by means of base plate or angles


Technical sketch

Exemplary design Exemplary design
Exemplary design Exemplary design


Dimension table

Technical data of examples of single-phase transformers for mining industry type ET1oG and ET1SG

Type of transformer Power
ET1oG, ET1SG 0,075 84 70 94 64 51,5 4,8 x 9 1,5
ET1oG, ET1S 0,25 105 107 110 80,5 86 5,8 x 12 4,3
ET1oG, ET1SG 0,63 150 112 145 122 90 7 x 15 7,8
ET1oG, ET1SG 1,0 174 150 158 135 116 7 x 15 12,9
ET1oG, ET1SG 2,0 178 153 153 128 126 11 x 15 22


Manufacturer reserves the right to make changes resulting from the continuous development of products offered.

If requested in advance, it is possible to manufacture transformer in other version.

Obudowa przenośna IP 23 dla urządzeń jednofazowych

portable IP23

Obudowa leżąca IP 23 dla urządzeń jednofazowych

for horizontal mounting IP23

Obudowa naścienna IP 23 dla urządzeń jednofazowych

wall mounted IP23

Obudowa stojąca IP 44 dla urządzeń trójfazowych

vertical design IP44

ask about this product

Quality supported by certificates

ELHAND PQ – Elhand Power Quality Harmonic Simulation Software

ELHAND PQ is charge-free software that allows to find the optimum solution for different configurations and parameters of your circuit without the need for costly measurements, tests and analyses. More >>

Important: The website uses cookies.

We use information saved using cookies and similar technologies, including for advertising purposes and statistical and to adapt the website to the individual needs of users. the use of website without changing the cookie settings means that they will be stored on your device final. You can change your cookie settings at any time. More information can be found in our "Cookies Policy".