Line Chokes

Alliance Engineering Company

Alliance Engineering Line Chokes are designed to suppress harmonics, reduce EMI/RFI interference, and improve power quality in industrial drive and power conversion systems. Available in both single-phase and three-phase configurations with current ratings up to 200A and beyond. Suitable for installation on the input and output side of VFDs and inverters, APFC panels, and harmonic-sensitive distribution systems. Built with CRGO/ferrite cores and housed in robust MS enclosures. Manufactured under ISO 9001:2015 standards.

Key Technical Advantages

Current Rating

Up to 200A and above

Phase Configuration

Single Phase / Three Phase

Impedance

2% / 3% / 4% / 5%

Input Voltage

415V AC, 50Hz

Application

VFD Input / Output / Harmonic Filter / APFC

Certification

ISO 9001:2015

Technical Specifications

Validated industrial performance metrics for enterprise deployment.

Engineering Data Sheet IS 5553 / IEC 61558

Parameter	Specification
Standard	IS 5553 / IEC 61558
Phase Configuration	Single Phase / Three Phase
Rated Input Voltage	230V AC (1-Ph) / 415V AC (3-Ph), ±10%
System Frequency	50Hz
Current Rating	Up to 200A and above (custom)
Impedance	2% / 3% / 4% / 5% (of rated voltage)
Inductance Range	0.1mH to 5mH (depending on rating)
THD Reduction	Up to 30–45% reduction at VFD input
Insulation Class	Class F (155°C)
Insulation Voltage	2kV (rms) for 1 minute
Core Material	CRGO Steel / Ferrite (for high-frequency applications)
Winding Material	Copper / Aluminium
Enclosure	MS Powder Coated / Open Frame
Cooling	Natural Air Cooled (AN)
Mounting	DIN Rail / Panel Mount / Floor Mount
Operating Temperature	-10°C to +55°C
Humidity	Up to 95% RH non-condensing
Temperature Rise	≤ 80°C above ambient

Standards & Compliance

Certified engineering excellence across regional and global regulatory frameworks.

IS 5553

Compliance with standard engineering and safety performance metrics.

IEC 61558

International standard for safety of power transformers, power supplies and reactors.

ISO 9001:2015

Certified Quality Management Systems for precision manufacturing.

Precision Configurations

Industrial Customizations

Our modular engineering workflow allows for specific adaptations to meet your site-specific infrastructure requirements. Consult with our technical team for bespoke builds.