Description
Application
Ce produit est un autotransformateur spécial pouvant être raccordé de différentes manières. Sa tension de sortie peut être réglée en continu et sans à-coups, de zéro jusqu'à la valeur maximale. Un indicateur de mesure est fourni pour les modèles TDGC2J 0,5, 1, 2, 3 et 5 kVA.Les modèles AI sont largement utilisés dans l'industrie, l'agriculture et la recherche scientifique, et sont particulièrement adaptés pour servir d'équipements auxiliaires à divers appareils tels que des machines-outils, des traceurs de courbes à transistors, des téléviseurs à projection et des instruments d'analyse dans l'industrie pétrolière, etc.
Courant de sortie
| Modèle | Phase | Fréquence (Hz) | Tension d'entrée (V) | Tension de sortie (V) | Courant de sortie max. | Taille/emballage (cm) | Qté |
| TDGC2J-0,5 kVA | 1 | 50/60 | 110 | 0-130 | 5 | 52×20×34 | 4 |
| TDGC2J-1KVA | 9 | 41.5×24×43 | 2 | ||||
| TDGC2J-2KVA | 18 | 41.5×24×43 | 2 | ||||
| TDGC2J-3 kVA | 27 | 66.5×26×49.5 | 2 | ||||
| TDGC2J-5 kVA | 45 | 33×28×30 | 1 |
Typical applications for the TDGC2J Variac
Where buyers actually put this frame — matched to the markets and duty cycles we ship into.
- Laboratory bench testingSweep a device from 0 to 250V to find its operating window.
- Motor and fan speed controlVoltage-based speed trim on shaded-pole and small universal motors.
- Heater and oven controlStepless power adjustment for drying, curing and heat-treatment rigs.
- Transformer and relay testingPick-off voltages for turns-ratio and pick-up/drop-out checks.
- Ageing and burn-in racksContinuous adjustable supply for batch soak testing.
- Lighting dimming in studiosResistive lamp dimming without the harmonics of a triac dimmer.
Full specification — TDGC2J series variable autotransformer (Variac)
Every rating below is what we build to at the factory. Confirm your voltage combination and country standard when you enquire.
| Model range | TDGC2J-0.5kVA to TDGC2J-5kVA (pointer-dial and digital variants) |
|---|---|
| Capacité nominale | de 0,5 kVA à 5 kVA |
| Number of phases | Single phase |
| Tension d'entrée | 220VAC standard (110V and other voltages to order) |
| Tension de sortie | 0 to 250VAC continuously adjustable |
| Fréquence | 50 / 60 Hz |
| Winding | Single-layer copper winding on a toroidal core, carbon brush tap |
| Duty | Intermittent; derate above 60% of rated output for continuous use |
| Protection de l'environnement | Fuse on input; over-current protection to order |
| Refroidissement | Natural air convection |
| Mounting | Bench case or panel-mount frame |
| Conformité | CE, RoHS; produced under ISO 9001 quality system |
| Garantie | 12 months from delivery date |
A Variac gives no isolation from the mains — add an isolation transformer where the load must float.
Download & documentation
Send these to your engineering or procurement team before you shortlist a supplier.
- Download the TDGC2J Variac datasheet (PDF)0.5kVA – 5kVA · ratings, protection, applications and ordering data
- Packing & carton quantitiesModel-by-model carton size and pcs per carton for freight costing
- Request the routine test reportPer-unit test sheet, CE / RoHS declaration and ISO 9001 reference, sent as PDF
Get a firm quotation in one working day
Tell us four things and we can quote without a second round of questions:
- Input voltage and output voltage (and the country standard)
- Required capacity in VA or the load list in watts
- Quantity for the first order and the annual volume
- Whether you need OEM branding, a custom socket or a non-standard voltage
Engineering reply, not a sales auto-responder. Samples of 1-2 pcs available for verified buyers.
Talk to the factory directly
- WhatsApp+86 156 5876 3197
- Courrielsales@johsuntech.com
- Phone+86-15658763197
- Temps de réponseWithin 24 hours, Mon-Sat
Related pages
FAQ
Can a Variac be left at a fixed output all day?
Not at nameplate rating. The carbon brush contact is rated for intermittent operation, so a Variac holding a fixed output for hours should be derated to roughly 60% of its rating, or replaced with a fixed-ratio transformer plus a tap changer.
Does a variable transformer isolate the load?
No. A Variac is an autotransformer: input and output share the winding, so a fault can put line voltage on the load. Add an isolation transformer wherever the equipment under test must float or where an operator could touch the circuit.
Can I use it on 60Hz and on 110V?
Yes. The winding works on 50Hz or 60Hz within its voltage rating, and 110V input versions are built to order. Confirm the input voltage and frequency when you enquire so the winding and brush position are set up correctly.
Demande de devis
Indiquez-nous vos spécifications, la quantité souhaitée ou le cas d'utilisation, et nous vous proposerons un devis sur mesure.
