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280 Series Datasheet

Corrib® Fixed and Adjustable Vitreous Enamel Power 

Res 280 product image

 

Features

  • Also available in Centohm or Silicone coating. Consult Ohmite
  • Ribbed construction aids in rapid cooling.
  • Designed for equipment requiring low resistance loads at low ohmic values and high current capacity.
  • Especially constructed for motor starting, dynamic braking, etc.
  • RoHS compliant product available. Add “E” suffix to part number to specify.

 

Corrib® resistors are ideal for applications involving high currents at very low resistance values—as low as 0.1Ω for the 300 Watt unit. These large, heavyduty resistors are designed to withstand frequent start-stop cycles characteristic of motor starting, dynamic braking and other similar applications. Special order units are available to accommodate up to 1500 watts. Corribs® are manufactured with corrugated resistive wire. To accelerate cooling, the wire is securely fused to the ceramic core by the protective vitreous enamel coating to improve durability. Corrib resistors are hollow-core units which can be securely fastened to chassis surfaces with thru bolts and brackets

Characteristics

Lead free vitreous enamel except for extreme low resistance 35 watt models, and very large models (750 watts and up), which are supplied in Silicone Ceramic

Tubular Ceramic

Tinned lug with hole. RoHS solder composition is 96% Sn, 3.5% Ag, 0.5% Cu

Supplied with adjustable 300 watt models. Part No. 1974-A or 1974-B

Max. 63Ω for 300W version

±10% (K)

Based on 25°C free air rating

Linearly from 100% @ +25°C to 0% @ +400°C

10 times rated wattage for 5 seconds

±400 ppm/°C

1000 VAC measured from terminal to mounting bracket

use the formula √P/R

 

Thru Bolts Mounting Brackets for 300 Watt Corrib

 

Includes two each bracket, bolt, washers (centering, mica, lock) and nut. Note: Single unit mounting contains one each bolt and nut; two each all washers

Slotted:

No. of Resistors:

1

Moun.Derat.%:

100%

Elongated:

No. of Resistors:

1

Moun.Derat.%:

100%

Elongated:

No. of Resistors:

2

Moun.Derat.%:

83%

Elongated:

No. of Resistors:

3

Moun.Derat.%:

80%

Elongated:

No. of Resistors:

4

Moun.Derat.%:

80%

 

Lugs for 300 Watt Adjustable Corrib

Res.:

0.40, 0.50, 0.63, 1.00, 1.50, 1.60, 2.00, 2.50, 3.10, 4.00, 5.00, 6.30, 8.00, 10.00, 12.00, 16.00, 20.00, 25.00, 30.00, 48.00, 50.00

Res.:

0.10, 0.12, 0.16, 0.20, 0.25, 0.31, 0.80, 1.20

Dimensions

Res 280 Dimensions

 

Core and Terminal Selection for Made to Order Type 

Part number chart.

Ordering Information

 

Standard

Res 280 Order info 1

 

Made-to-order

Res 280 Order Info 2

 

Standard part numbers for 280 series 

C300KR10E
C300KR12E
C300KR20E
C300KR25E
C300KR31E
C300KR40E
C300KR50E
C300KR63E
C300K1R0E
C300K1R2E
C300K1R6E

C300K2R0E
C300K2R5E
C300K3R1E
C300K4R0E
C300K5R0E
C300K6R3E
C300K8R0E
C300K10RE
C300K12RE
C300K16RE
C300K20RE

E300K10RE
E300K12RE
E300K16RE
E300K1R0E
E300K1R6E
E300K20RE
E300K2R0E
E300K2R5E
E300K3R1E
E300K4R0E
E300K5R0E

E300K6R3E
E300K8R0E
E300KR10E
E300KR12E
E300KR16E
E300KR20E
E300KR25E
E300KR31E
E300KR40E
E300KR50E
E300KR63E
E300KR80E

NOTE: Wattages above 750 watts come with silicone coating.

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