wIrewound
Tubular
Euro-Power
Wirewounꢀ Series
Vitreous Enamel Power
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.
F E AT ꢁ R E S
• 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
SERIES SPECIFICATIONS
Non-Inductive
Series
Wattage
72
Ohms
Voltage
1400
2100
3300
5000
Construction
Round wire
Round wire
Round wire
Round wire
Ribbon wire
Ribbon wire
Ribbon wire
versions avail-
able; Other sizes
available; Also
available in low
cost Centohm or
Silicone coating;
Consult Ohmite.
EVFT119
EVFT170
EVFT252
ESFT375
EVRT170
EVRT252
ESRT375
0.4Ω-250K
0.5Ω-100K
0.2Ω-125K
0.2Ω-200K
0.10-18Ω
0.22-33Ω
0.33-56Ω
160
280
700
200
350
1000
ChARACTERISTICS
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.
Coating
Tubular ceramic.
Core
Terminals
solder coated radial lug with RoHS composition solder
Linearly from 100% @ +25°C to 0% @ +350°C.
±5% 1Ω and over (J); ±10% under 1Ω (K)
Based on 25°C free air rating.
Derating
Tolerance
Power rating
10 times rated wattage for 5 seconds.
Overload
1 to 20Ω: ±400 ppm/°C; Above 20Ω: ±260 ppm/°C; Ribbon wire: 400ppm/°C
Temperature coefficient
Dielectric withstanding voltage
1000 VAC: 72 to 160 watt rating. 3000 VAC: 280 to 700 watt rating (Measured from terminal to mount-
ing bracket)
use the formula √P/R
To calculate max. amps
SOldER TAb dIMENSIONS
(mm)
L
C
D
J max.
H ref.
Wattage
Round wire Ribbon wire
L
D
C
H ref.
J max.
Core Code
EM
72
N/A
200
119
170
252
375
20.3
25.5
30.6
51.0
9.2
14.3
15.9
19.1
19.1
39.4
45.9
54.1
74.1
160
280
700
12.4
17.5
27.9
EN
350
EP
1000
ER
1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com