Product Introduction
In industrial plants, motor starting pulses and variable frequency drives inject high-frequency noise into the power lines - and once this interference reaches the metering circuit, it causes signal drift, false readings, and failed EMC tests. The 60A three phase interference connector is built to stop exactly this problem. A three-phase EMI filtering structure is integrated inside the terminal block, isolating high-frequency noise at the connection point so the meter receives a clean, stable signal.
Rated at 60A / 400V AC, this model serves three-phase energy meter manufacturers and motor control center (MCC) builders who need reliable metering in electrically noisy environments. Tin-plated copper alloy contacts maintain consistent contact pressure across 100+ mating cycles, while the flame-retardant PC housing (UL94-V0) with anti-tamper shielding protects the connection in demanding installations.
Technical Specifications
Complete electrical and mechanical data for procurement and engineering reference
| Product Name | Three Phase Interference Connector (60A, with built-in EMI filter) |
|---|---|
| Application | Three-phase energy meter connections, MCC metering circuits, industrial anti-interference power input |
| Rated Current | 60A |
| Rated Voltage | 380V / 400V AC |
| Withstand Voltage | AC 2000V / 1 min |
| Insulation Resistance | ≥ 100 MΩ |
| Temperature Rise | < 45K at 60A |
| EMI Filtering | Integrated three-phase filter, suppresses conducted high-frequency noise from motor starting pulses |
| Insertion Force | ≤ 45N per pole |
| Extraction Force | ≥ 30N per pole (initial) |
| Mating Cycles | ≥ 100 cycles without performance degradation |
| Contact Resistance | ≤ 0.8 mΩ after 100 cycles |
| Contacts | High-conductivity copper alloy, tin-plated, spring-loaded beam design |
| Housing | Flame-retardant PC, UL94-V0, integrated anti-tamper shielding |
| Termination | Screw clamp, 4–25 mm² copper conductors |
| Customization | OEM/ODM supported per customer drawings |
| MOQ | 5,000 pcs (trial orders negotiable) |
| Quality Guarantee | 12-24 months from shipment date |
| Manufacturing Standard | ISO 9001 quality management system |
| Delivery Ports | Ningbo Port / Shanghai Port |
| Quote Turnaround | Within 24 hours |
Core Advantages
Why meter manufacturers and MCC builders specify this anti-interference connector
High-Frequency Noise Isolation
Built-in three-phase EMI filter suppresses conducted interference from motor starting pulses and VFDs right at the connection point.
01
Stable Metering Signal
Keeps the metering circuit free from noise-induced signal drift and false readings, supporting smooth EMC testing and accurate billing.
02
Compact & Cost-Effective
Filter function integrated into the connector itself - no external filter modules, saving cabinet space and total wiring cost.
03
Durable Contact System
Tin-plated copper alloy contacts with spring-loaded beam design: ≤0.8 mΩ contact resistance maintained over 100+ mating cycles.
04
60A vs 80A vs 100A Interference Connector
Model selection guide for procurement decision-making
| Comparison Dimension | 60A Model | 80A Model | 100A Model |
|---|---|---|---|
| Rated Current | 60A | 80A | 100A |
| Typical Load | ≤ 15 kW | ≤ 20 kW | ≤ 30 kW |
| Footprint | Compact | Medium | Large |
| Typical Application | Residential / small commercial three-phase metering, light-duty MCC | Commercial / light industrial | Industrial / high-power |
| Interference Protection | Same three-phase EMI filtering architecture across all models | ||
| Cost Efficiency | Highest | Medium | Standard |
Professional Production Process
Standardized industrial manufacturing for consistent filtering and contact quality
Material Inspection
High-Precision Contact Stamping
Tin Plating
EMI Filter Module Assembly
Housing Molding & Anti-Tamper Shielding
100% Electrical & Withstand Voltage Testing
Every batch passes 100% electrical testing including withstand voltage and contact resistance checks, ensuring stable filtering performance and connection reliability before shipment.
Material & Surface Treatment Options
Engineered material combination for conductivity, durability, and safety
Contacts
High-Conductivity Copper Alloy, Tin-Plated
Spring-loaded beam design for consistent contact pressure
Tin plating prevents oxidation and ensures low contact resistance
≤ 0.8 mΩ contact resistance after 100 mating cycles
Suitable for high-frequency noise environments
Custom plating thickness available on request
Housing
Flame-Retardant PC (UL94-V0)
UL94-V0 flame-retardant rating for industrial safety
Integrated anti-tamper shielding for metering integrity
High dimensional stability in meter cabinets
Resistant to heat aging and mechanical stress
Custom housing color and dimensions per drawings
Screw clamp termination accepts 4–25 mm² copper conductors. Custom wiring capacities and structural options supported under OEM/ODM service.
Application Scenarios
Anti-interference metering connections in industrial three-phase power systems
Three-Phase Energy Meter Manufacturers
Integrated into 60A three-phase meter input circuits for residential and light commercial metering, where the built-in EMI filter keeps measurement signals clean without external filter modules.
Motor Control Centers (MCC)
Installed on metering branches in MCC cabinets, where frequent motor starting pulses would otherwise disturb the metering circuit - the connector isolates the high-frequency noise at the source.
Drives, Power Supplies & Charging Infrastructure
Used on the input power lines of variable frequency drives, servo drives, industrial power supplies, photovoltaic inverters, and EV charging stations to support EMC compliance of the whole system.
Frequently Asked Questions
Q: What is a three phase interference connector used for?
A: A three phase interference connector is a metering connector with a built-in three-phase EMI filter. It is installed between the three-phase power supply and the energy meter to isolate high-frequency noise generated by motor starting pulses and variable frequency drives, keeping the metering circuit signal clean and stable.
Q: How does the 60A model reduce electromagnetic interference?
A: The connector integrates a three-phase EMI filtering structure inside the terminal block. It suppresses conducted high-frequency noise on the power lines before it reaches the metering circuit, protecting the meter from signal drift and false readings caused by motor starting pulses in industrial environments.
Q:When should I choose the 60A model instead of 80A or 100A?
A: Choose the 60A model when the connected load is up to 15kW, the meter cabinet has limited installation depth, or the project prioritizes cost efficiency. For loads between 15-25kW, select the 80A model; for loads above 25kW, use the 100A model. All three models share the same interference-protection architecture.
Q: Do you support custom specifications for the 60A interference connector?
A: Yes. OEM/ODM customization is supported, including terminal structure, wiring capacity, filter characteristics, and housing dimensions based on customer drawings and technical parameters. Sample testing is available for buyer verification before bulk production.
Q: What is the MOQ and quality guarantee for three phase interference connectors?
A: Standard MOQ starts from 5,000 pieces per SKU, with smaller trial orders negotiable for new customers. All products carry a 12 to 24 month quality guarantee from the shipment date, and confirmed manufacturing defects are resolved through replacement, refund, or credit.
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