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HIgH
Power
wIrewound
Tubular
SERIES SPECIFICATIONS
SOLDER TAB DIMENSIONS
(mm)
CHARACTERISTICS
Euro-Power
Wirewound Series
Vitreous Enamel Power
Series Wattage Ohms Voltage Construction
EVFT119 72 0.4Ω-250K 1400 Round wire
EVFT170 160 0.5Ω-100K 2100 Round wire
EVFT252 280 0.2Ω-125K 3300 Round wire
ESFT375 700 0.2Ω-200K 5000 Round wire
EVRT170 200 0.10-18Ω Ribbon wire
EVRT252 350 0.22-33Ω Ribbon wire
ESRT375 1000 0.33-56Ω Ribbon wire
Coating
Lead free vitreous enamel. Very large models (700 watts and up) are supplied in Silicone Ceramic. Also
available in low-cost Centohm coating; Consult factory.
Core
Tubular ceramic.
Terminals
solder coated radial lug with RoHS composition solder
Derating
Linearly from 100% @ +25°C to 0% @ +350°C.
Tolerance
±5% 1Ω and over (J); ±10% under 1Ω (K)
Power rating
Based on 25°C free air rating.
Overload
10 times rated wattage for 5 seconds.
Temperature coefficient
1 to 20Ω: ±400 ppm/°C; Above 20Ω: ±260 ppm/°C; Ribbon wire: 400ppm/°C
Dielectric withstanding voltage
1000 VAC: 72 to 160 watt rating. 3000 VAC: 280 to 700 watt rating (Measured from terminal to mount-
ing bracket)
To calculate max. amps
use the formula √P/R
Non-Inductive
versions avail-
able; Other sizes
available; Also
available in low
cost Centohm or
Silicone coating;
Consult Ohmite.
Select Euro series fixed resistors for applications
requiring wattage ratings from 72 to 1000 watts.
Suitable for rugged applications, Euro-Power resis-
tors are spot welded producing stronger mechani-
cal and electrical connections. The vitreous enamel
coating was specifically developed and provides
protection against moisture and mechanical damage.
Euro-Power resistors are equipped with lug termi-
nals suitable for soldering or sturdy bolt connection.
Mounting brackets not included with resistors.
FEATURES
• Terminals suitable for soldering or bolt connection
• High wattage applications
• Rugged lead free virtreous enamel coating
• Flame resistant coating
• All-welded construction
• "Live" mounting option
Wattage
Round wire Ribbon wire L D C H ref. J max. Core Code
72 N/A 119 20.3 9.2 14.3 39.4 EM
160 200 170 25.5 12.4 15.9 45.9 EN
280 350 252 30.6 17.5 19.1 54.1 EP
700 1000 375 51.0 27.9 19.1 74.1 ER
