TR28 5.2 CONTROL, SAFETY AND ISOLATING Single-phase transformer
Single-phase transformers
Range
| PRI VOLTAGE | SEC VOLTAGE | POWER | REFERENCE | |||||
|---|---|---|---|---|---|---|---|---|
| ta 40°C | ta 25°C | 12-24V  |
24-48V |
115-230V |
||||
| TR28 5.2 CONTROL SAFETY ISOLATING |
 |
0-230-400-460V ±15V | 12-24V 24-48V 115-230V |
25VA | 40VA | 680025010 | 680025011 | 680025012 |
| 40VA | 63VA | 680040010 | 680040011 | 680040012 | ||||
| 63VA | 100VA | 680063010 | 680063011 | 680063012 | ||||
| 100VA | 130VA | 680100010 | 680100011 | 680100012 | ||||
| 160VA | 200VA | 680100010 | 680100011 | 680100012 | ||||
| 200VA | 250VA | 680200010 | 680200011 | 680200012 | ||||
| 320VA | 400VA | 680250010 | 680250011 | 680250012 | ||||
| 250VA | 320VA | 680320010 | 680320011 | 680320012 | ||||
| TR28 5.2 CONTROL SAFETY ISOLATING |
 |
0-230-400-460V ±15V | 12-24V 24-48V 115-230V |
400VA | 500VA | 680400010 | 680400011 | 680400012 |
| 500VA | 630VA | 680500010 | 680500011 | 680500012 | ||||
| TR28 5.2 CONTROL SAFETY ISOLATING |
 |
0-230-400-460V ±15V | 12-24V 24-48V 115-230V |
630VA | 800VA | 680630010 | 680630011 | 680630012 |
| 800VA | 1000VA | 680800010 | 680800011 | 680800012 | ||||
| 1000VA | 1250VA | 681000010 | 681000011 | 681000012 | ||||
Technical data
| Use | SEC 12-24V Control and safety transformer  SEC 24-48V | 115-230V Control and isolating transformer |
| Rated primary voltage | 0-230-400-460V ±15V |
| Rated secondary voltage | 12-24V 24-48V 115-230V |
| Rated power range | 25VA ... 1000VA |
| Protection against electric shock | Class I |
| Thermal class | B (130ºC) |
| Rated ambient temperature | 40ºC |
| Protection index | IP20 |
| Frequency | 50/60Hz |
| Dielectric strength between primary and secondary |
≥4,5kV |
| Dielectric strength between windings and metallic parts |
≥2,5kV |
| Ambient temperature of service * | -20°C ... 70°C |
| Storage temperature | -40°C ... 85°C |
| * For ambient temperatures higher than 40ºC it is necessary to apply a derating. | |
Standards
IEC/EN 61558-1 Transformers, general specifications
IEC/EN 61558-2-2 Control transformers
IEC/EN 61558-2-4 Isolating transformers
IEC/EN 61558-2-6 Safety transformers
RoHS Compliant
Constructive characteristics
| Two identical secondary winding intended for serial or parallel connection (jumpers supplied with the transformer) |
| Windings in F(155°C) or H(180°C) thermal class |
| Flexible insulation Class B(130°C) |
| Impregnation Class B(130ºC) |
| Great capacity clamp type terminal blocks: up to 320VA > 10mm2 (max. torque 2Nm) up to 1000VA > 25mm2 (max. torque 2,5Nm) |
| Screw earth connection (standard IEC/EN61558 prescribes in the clause 24 that it should not be possible to loosen the protection wire without the aid of a tool) |
| TIG welded magnetic core prevent vibration and allows small air gap to reduce the magnetization current |
| Fixing on symmetric rail in rated power up to 320VA |
Dimensions
| POWER | DIMENSIONS | WEIGHT | ||||||
| VA | A | B | C | D | E | F | G | kg |
| 25 | 84 | 113 | 96 | 101 | 66 | 5 | 7,5 | 1,17 |
| 40 | 84 | 113 | 105 | 101 | 66 | 5 | 7,5 | 1,48 |
| 63 | 84 | 113 | 112 | 101 | 66 | 5 | 7,5 | 1,83 |
| 100 | 84 | 113 | 116 | 101 | 66 | 5 | 7,5 | 2,00 |
| 160 | 84 | 113 | 131 | 101 | 66 | 5 | 7,5 | 2,65 |
| 200 | 108 | 135 | 133 | 120 | 82 | 6,5 | 9,5 | 4,20 |
| 250 | 108 | 135 | 138 | 120 | 82 | 6,5 | 9,5 | 4,45 |
| 320 | 108 | 135 | 148 | 120 | 82 | 6,5 | 9,5 | 5,00 |
| 400 | 120 | 152 | 141 | 135 | 94 | 7 | 9,5 | 5,86 |
| 500 | 120 | 152 | 156 | 135 | 94 | 7 | 9,5 | 7,08 |
| 630 | 150 | 177 | 140 | 160 | 115 | 7 | 2 | 8,68 |
| 800 | 150 | 177 | 160 | 160 | 115 | 7 | 2 | 11,5 |
| 1000 | 150 | 177 | 182,6 | 160 | 115 | 7 | 2 | 14,4 |
Secondary connection
TRANSFORMER 0-230-400-460//24-48V 100VA
REF 610100011
Serial connection
Parallel connection
With middle tap
Other versions
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| POWER | 25VA...3000VA |
| PRI VOLTAGE | 0-230-400V |
| SEC VOLTAGE | 12-24V 24-48V 115-230V |