Three Phase Signal Isolator
Standard Signal Isolator Circuit | High-Frequency Interference Suppression
Our Standard Signal Isolator Circuit delivers excellent performance in suppressing high-frequency interference within the 1MHz–30MHz range. Designed for three-phase systems, it is widely used in switching power supplies, UPS systems, power distribution cabinets, and other power electronic equipment operating in complex electromagnetic environments.
By effectively reducing high-frequency signal interference to peripheral devices and power grids, this isolator ensures stable, safe, and reliable operation, helping minimize equipment failure rates. Ideal for industrial automation, smart building systems, and power electronics applications, it provides enhanced system protection and long-term operational reliability.
Product Advantage
- Suppresses high-frequency interference in the 1MHz–30MHz range
- Compatible with three-phase systems: UPS, switching power supplies, distribution cabinets
- Reduces equipment failure and interference to peripheral devices
- Ensures stable, safe, and reliable operation
- Ideal for industrial automation and smart power systems
Product Parameters
- 16A
- 40A
- 80A
Parameter
Specification
Test Condition/Note
Electrical
Rated Voltage: 380/440V AC
50/60Hz
Test Voltage:
• Line-to-line: 1500V DC
• Line-to-ground: 2750V AC
1 minute duration
Insulation
Insulation Resistance: >50MΩ
@500VDC
Thermal
Max. Temperature Rise: <30℃
Under rated load
Mechanical
Housing Material: Nickel-plated steel
Corrosion-resistant
Model
Leakage Current
Rated Current
Connection Method
Input
Output
MN-H3016
<3.0mA
16A
Terminal
Terminal
Rated Voltage
380/440VAC
Test Voltage
1500V DC (line-to-line)
2750V AC (line-to-ground)
Operating Frequency
50/60Hz
Insulation Resistance
>50MΩ @500V DC
Climate Category
25/085/21
Enclosure Material
Nickel-plated Steel
Model
Leakage Current
Rated Current
Connection Method
Input
Output
MN-H3040
<3.0mA
40A
Terminal Block
Terminal Block
Rated Voltage
380/440VAC
Test Voltage
1500V DC (line-to-line)
2750V AC (line-to-ground)
Operating Frequency
50/60Hz
Insulation Resistance
>50MΩ @500V DC
Climate Category
25/085/21
Enclosure Material
Nickel-plated Steel
Model
Leakage Current
Rated Current
Connection Method
Input
Output
MN-H3080
<10.0mA
80A
Terminal Block
Terminal Block
| Rated Voltage | 380/440VAC |
| Test Voltage | 1500V DC (line-to-line) |
| 2750V AC (line-to-ground) | |
| Operating Frequency | 50/60Hz |
| Insulation Resistance | >50MΩ @500V DC |
| Climate Category | 25/085/21 |
| Enclosure Material | Nickel-plated Steel |
Dimensions
Insertion Loss Reference Curves
Wiring Method
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FAQ
1. What is a Standard Signal Isolator Circuit used for?
A Standard Signal Isolator Circuit is designed to suppress high-frequency interference in three-phase systems such as UPS, switching power supplies, and power distribution cabinets. It ensures stable and safe operation of sensitive electronics in industrial automation and power electronics applications.