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High Power Circular Edge Wound Resistor

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Product Description

Basic Specifications

Model NO.

REWR-P Series

Installation

Assemble

Material

Metal Film Resistor

Packaging

Surface Mount

Type

Edge-Wound Resistor

Shape

Circular

Application

VFD Braking & Motor Control

HS Code

8533900000

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High Power Circular Edge-wound Resistor

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 and etc.

Product size and value can be designed according to customer requirements, or assembled into components.

Outline Drawing (mm)

Derating Curve

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Dimensions (in./mm)

Size	A Over-all		Dimensions
Size	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
7	615.95	24.25	558.8	22
8	762	30	635	25
9	838.2	33	711.2	28

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Bracket Assembly Options

B1 Bracket Option

B2 Bracket Option

B3 Bracket Option

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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

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Product Showcase

Frequently Asked Questions

What are the primary applications for the REWR-P series resistors?

The REWR-P series are specifically designed for high-power applications including VFD braking, motor control, load banks, and neutral grounding systems.

What is the maximum operating surface temperature?

The continuous surface temperature for these edge-wound resistors is designed not to exceed 375ºC to ensure stable performance and safety.

How is the resistance element constructed?

The resistance body uses a stable alloy ribbon element wound on its edge into a helix shape and supported by a ceramic bracket for optimal heat dissipation.

Are different bracket options available for installation?

Yes, there are multiple bracket assembly options (B1, B2, B3) available to accommodate various mounting requirements and dimensions.

Can the resistance value be customized?

Yes, both product size and resistance values can be customized according to specific customer requirements or assembled into specialized components.

What is the production capacity for this series?

The standard production capacity is approximately 200 pieces per day, ensuring reliable supply for large-scale projects.