Sticker 8:
Michael Riedel RSTN 630 transformer, a 1-phase control transformer
Model: RSTN 630.
Power: 0.63 kVA (continuous use) to 1.7 kVA (short-term use).
Input Voltage (Primary): Adjustable to 380V, 400V or 420V AC.
Output voltage (secondary): 230V AC.
Amperage:
Primary: 1.76 A.
Secondary: 2.73 A.
Frequency: 50/60 Hz.
Sticker 9:
single-phase transformer from the brand Michael Riedel
Type: RSTN 250
Power: 0.25 / 0.69 kVA
Primary voltage (input): 380 / 400 / 420 V AC
Secondary voltage (output): 24 V AC
Amperage: Primary 0.71 A; Secondary 10.41 A
Frequency: 50/60 Hz
Sticker 3.30:
Hema Electronics, specifically the model CLAY750
It is an electrical device used to convert alternating current (VAC)
to another voltage.
Technical Specifications
Input voltage (primary): 400V - 440V AC.
Output Voltage (Secondary): Choice of 230V or 24V AC.
Power: 750 VA (Volt-Ampere).
Frequency: 50 Hz.
Serial number: 07072011-10.
Auction-ID: A1-41989-131