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ST 320/23/24 BLOCK Control Transformers
Reference: ST 320/23/24
Manufacturer: BLOCK
Description:
Control Transformers
Control Transformers ST 320/23/24
Control- and safety isolating transformer
Categories:
- BLOCK
Brand new product in its original packaging covered by the warranties and certifications provided by BLOCK
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MORE INFO
The transformers of the ST series ensure safe galvanic isolation of the primary circuit from the secondary circuit. The unique BLOCK IMPEX vacuum impregnation process provides excellent protection against external influences while reducing noise levels. The robust metal base plate with elongated holes ensures easy and secure mounting.
›Control and safety isolating transformer according to EN (IEC) 61558-2-2 and EN (IEC) 61558-2-6
›Very good inrush behavior due to reduced inrush currents
›High power density through a compact design concept
›Primary side ±5% taps for voltage adjustment
›Touch-protected connection terminals according to UVV BGV A3
| Product | Control- and safety isolating transformer |
| Order number | ST 320/23/24 |
| Series | ST |
| Power | 320 VA |
| UL Derating | 250.00 VA |
| Input | 219 V / 230 V / 241 V |
| Output | 24 V • 13.3 Aac |
| Phases | 1 |
| Frequency range | 50 Hz to 60 Hz |
| Short-Circuit Losses | 22.6 W |
| No-Load Losses | 12.3 W |
| Short-Term Power / instantaneous output | 810 VA |
| Short circuit voltage uk | 6.4 % |
| EN Insulation class | B (130°C) |
| UL Insulation class | class 105 |
| Duty Cycle | 100 % |
| Wire material | Copper |
| Efficiency | 90.2 % |
General
| Short circuit proof | not short-circuit proof |
| Switching group | Ii0 |
| Cooling type | AN |
Environment
| Ambient temperature | -20 °C to 40 °C / -4 °F to 104 °F |
| Max. installation height | 2,000 m / 6,562 ft |
Protection and Safety
| Protection type | IP00 |
| Protection class (prepared) | I |
| Overvoltage category | III |
| Degree of contamination | 1 |
Electrical Connections
| Input terminal | Screw terminal |
| Output terminal | Screw terminal |
| Terminal PE | Flat plug connection |
Size and Weight
| Width | 105 mm / 4.13 in |
| Height | 111 mm / 4.37 in |
| Depth | 105 mm / 4.13 in |
| Weight | 4.5 kg / 9.921 lbs |
DATASHEET - PDF
Title
Size
Type
62 Mbytes
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