RCEN 91

RCEN 91

Elliptical shape, high surface load, submerged collars

The RCE is a wire resistance wound on a ceramic elliptical support coated with inorganic phosphate cement with clamps beneath the coating. The purpose of the coating is to (1) ensure the mechanical protection of the wire, (2) allow a uniform heat distribution and (3) limit thermal expansion of the coils. The coating does not have an electrical insulation function. The RCE is available in the low inductance version; in this case, it is called RCEN; it is available with an adjustment slider; in this case, it is called RCER; and with a fixed intermediate socket, in this case, it is called RCEP. The latter cannot be purchased through e-commerce, please contact our sales department: sales@dev.fairfild.com.

Overview Table

Min Resistance 
36
Max Resistance 
18000
Tolerance (%) 
±5%
Rated Continuos Power (W) 
91
Protection Degree (IP) 
IP00
Not Inductive 
si
Rated insulation voltage (V)
(Clarification on Voltage definitions.pdf)		 
1500
Adjustable 
yes
Thermal switch 
yes
UL 
no
Weight 
0.084

These options are available for this product:*

ohmic values out of range,special tolerance on resistance (2%, 1%)
*Options must be ordered separately. Contact Fairfild directly.

In what sectors is this resistance used?

The main areas of application are industrial automation, energy and railway sector.

For what types of applications is it used?

The product is used: as a dynamic terminating resistor, as a basic element in harmonic filter circuits, as a basic element for neutral earthing resistors, in RC circuits as the device for charging and discharging the capacitors and as a heating resistor for electrical panels.

What are the electrical specifications?

The RCE family has 4 models with power ratings from 31 W to 91 W and the ohmic value ranges between 2.2 Ω and 75 k Ω. The maximum voltage of use varies depending on the model.

What are the overload conditions?

The resistance can be overloaded with respect to its nominal power based on the working cycle (insertion and rest time). For duration pulse less than one second, the overload permissible also depends on the ohmic value. For non-repetitive pulses the relation is 5 times the nominal power for 10 seconds.

What is the temperature of the resistance?

The temperature of the resistance depends on the power that it will dissipate. Numerous factors influence the dissipation capacity; please consult our technical data sheet for detailed information. The graph of the data sheet on page 3 shows the relationship between the temperature on the resistance and the power applied for a heating element placed horizontally.
The resistance can be mounted with its SP3 with hole, SP1 with slot and SPD with spacer; in this regard, see the related products data sheet. For a better heat distribution we suggest mounting it horizontally. The terminals made in nickel-iron alloy enable electrical connection through tinning. On request (not to be purchased via e-commerce) it is possible to provide a male faston cable lead. If installed in a group we recommend keeping a distance between the resistances of at least 20 mm.
SUPPORTO SP1 BRONZO FOSFOROSO NICHELATO CON ASOLE
SUPPORTO SP3 BRONZO FOSFOROSO CON FORO
SUPPORTO SPD OTTONE NICH. Alt. 12

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