Nordtek
 

Toroids 50-200VA, Low Voltage Lighting

Return to normal view High quality open style toroidal transformers with a 230V a.c. 50/60Hz primary winding.
Suitable for 12V a.c. low voltage lighting applications.

  ENEC   KEMA EUR     Open Style Toroidal Transformer  
 
  • Primary incorporates an auto-reset thermal switch, rates at 120°C ±5°C
  • Output voltage 11.8V ±1.5% (at nominal input and full load)
  • Small size and low weight compated with traditional stacked lamination types.
  • Extremely low level of radiated magnetic field
  • Very low induced noise (hum)
  • Very low iron loss
  • Double insulated primary leads
  • Supplied with mounting kit
  • 100% electrical and flash tested
  • High quality manufacturing and testing in accordance to:
    EN60742, EN60950, EN60065, VDE 0551, VDE 0550 and BS415
  • Tested and Approved by KEMA to EN61558.
  • UL Recognised to UL506
   Toroids 50-200VA, Low Voltage Lightning - open style


Rated VA Part Number Regulation % Typical Temperature Rise [K] Dimensions* Diameter [mm] Height [mm] Weight Kg]
50 91931-P1S1 15 46 80 33 0.65
105 91932-P1S1 11 49 93 46 1.05
150 91933-P1S1 8.5 48 105 42 1.35
200 91934-P1S1 7.6 51 105 50 1.75

  • * Allow extra 4mm for mounting kit; allow extra 5mm where leads emerge.
  • Leads: PVC insulated 150mm long.
  • Maximum ambient operating temp. +40°C
  • UL recognised for Insulation Class A (105°C)
  • Meets all requirements of Class E (120°C)
  • Neoprene pads: 5 KV isolation

Important Installation Note

Each transformer is supplied with a dished washer and protection pads for single hole fixing. Ensure that the pads are fitted above and below the transformer winding and that the dished washer is on top of the upper pad. Do not over tighten the fixing bolt (not supplied) as this could damage the winding.
Under no circumstances should both ends of the fixing bolt contact a metal chassis or frame as this would create a "shorted turn" causing irreparable damage.
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