Explosion-proof Slip Ring
The Explosion-Proof Slip Ring, also known as an explosion-proof rotary joint, is a specialized electrical transmission device designed for safe power, signal, and data transfer between rotating and stationary components in hazardous environments.

Key Features
1.Certified Explosion-Proof Design. All models feature reinforced structural design and certified explosion-proof construction, effectively preventing sparks, arcs, or heat accumulation from igniting combustible dust in grain storage facilities.
2.Reliable Power and Signal Transmission. Maintains stable electrical connections between rotating and fixed parts, enabling continuous transmission of power, control signals, and data with high reliability.
3.High Temperature Resistance. Designed to withstand elevated operating temperatures, reducing the risk of thermal ignition and ensuring long-term stable performance under demanding conditions.
4.Dust Protection for Grain Silos. Optimized sealing structure provides excellent resistance to grain dust intrusion, ensuring safe operation in dust-rich environments typical of silos and bulk material handling systems.
5.High Stability and Long Service Life. Built for continuous industrial operation, offering stable transmission performance, low failure rates, and reduced maintenance requirements.

Technical Parameters
|
Model |
Rated Voltage (V) |
Rated Current Range (A) |
Insulation Resistance (MΩ) |
Operating Temperature (°C) |
|
FBH1 |
220 / 380 |
0–160 |
≥ 50 |
-40 ~ +65 |
|
FBH2 |
220 / 380 |
0–160 |
≥ 50 |
-40 ~ +65 |
|
FBH3 |
220 / 380 |
0–260 |
≥ 200 |
-40 ~ +65 |
|
FBH3-Z |
220 / 380 |
0–400 |
≥ 200 |
-40 ~ +65 |
|
FBH4 |
220 / 380 |
0–260 |
≥ 200 |
-40 ~ +65 |
|
FBH5 |
220 / 380 |
0–260 |
≥ 200 |
-40 ~ +65 |
|
GKFBH1 |
220 / 380 |
0–260 |
≥ 200 |
-40 ~ +65 |
Product Classification
According to insulation resistance requirements, explosion-proof slip rings are classified into two categories:
Class I – Standard Insulation Type
Models: FBH1 / FBH2
Suitable for applications with conventional insulation resistance requirements.
Class II – High Insulation Type
Models: FBH3 / FBH3-Z / FBH4 / FBH5 / GKFBH1
Designed for applications with higher insulation resistance requirements and more demanding operating environments.

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