High Power Circular Edge-wound Resistor (REWR-P Series)
Product Characteristics:
The resistance body is made of stable resistance alloy. The ribbon element is wound on edge in the form of a helix, and spun onto a ceramic bracket. The continuous surface temperature does not exceed 375ºC. REWR-G series are mainly used in VFD braking, motor control, load banks and neutral grounding. Product size and value can be designed according to requirements.
Outline & Derating Curve
Dimensions (in./mm)
Size
A Over-all
Mounting Dimensions
mm
inch
mm
inch
2
228.6
9
177.8
7
3
285.75
11.25
254
10
4
381
15
330.2
13
5
438.15
17.25
406.4
16
6
615.95
24.25
457.2
18
9
838.2
33
711.2
28
Bracket Assembly Options
Technical Specifications
Test Item
Specifications
Test Methods
Temperature
Δ≤±5%
20ºC-375ºC
Terminal tensile strength
Δ≤±(2%R+0.05Ω)
45N, 30S
Terminal shock
Δ≤±(2%R+0.05Ω)
PR, 30min/-55ºC, 15min
Overload
Δ≤±(2%R+0.05Ω)
10PR, 5S
Standard Resistance Values (Ω)
Rated current (A)
Size 2
Size 4
Size 6
Size 8
Size 9
11A
2.30
5.10
7.90
10.7
12.0
24A
0.62
1.40
2.10
2.87
3.20
50A
0.17
0.37
0.57
0.77
0.87
105A
-
0.12
0.18
0.24
0.27
Product Application Showcase
Frequently Asked Questions
Q: What are the primary applications for REWR-P series resistors?
A: They are mainly used for VFD braking, motor control, load banks, and neutral grounding systems.
Q: What is the maximum surface temperature these resistors can handle?
A: The continuous surface temperature is designed not to exceed 375ºC during operation.
Q: Can the resistance value and physical size be customized?
A: Yes, product size and resistance values can be customized and designed according to specific customer requirements.
Q: What material is used for the resistance element?
A: The resistance body is constructed from a stable resistance alloy wound on edge as a helix onto a ceramic bracket.
Q: Are there different bracket options for installation?
A: Yes, we offer several bracket assembly options, including BI, B2, and B3 configurations to fit various mounting needs.
Q: What is the production capacity for this series?
A: The production capacity is approximately 200 pieces per day.
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