AC-DC Current Transformer, Single Core (SYH1MF)

Magnetic Core Structural Features

Made of a single, constant-permeability magnetic material with permeability μ = 1500–4000.

Magnetic Core Performance Characteristics

Excellent capability to withstand DC components, suitable for current ranges of transformers (1.5–500 A).
High linearity, high accuracy, suitable for current transformer accuracy classes ranging from 0.5 to 0.1.
It exhibits good accuracy under both inductive and capacitive loads.
Good temperature stability
Miniaturization

Application areas

Current transformer for electricity meters with resistance to DC components
DC-component-resistant current transformers for power system measurement and control

Basic Material Parameters

Saturation Magnetic Induction (T)	≥1.4
Permeability μ	1500-4000
Coercive force Hc (A/m)	≤6.0
Residual magnetic flux density Br (T)	≤0.02
Density (g/cm³) ³ )	7.3
Fill factor	≥0.82

DC Hysteresis Loop

Common size specifications

Product Grade	Core size	External dimensions	Accuracy class	Maximum DC Overcurrent Capability
SYH1MF 221706C	17×22×6	Φ15.6 × 23.9 × 8.3	Class 0.5–0.1	60A
SYH1MF 221707C	17×22×6.5	Φ15.6 × 23.9 × 8.5	Class 0.5–0.1	60A
SYH1MF 221706C-02	17×22×6	Φ15.6 × 23.9 × 8.3	Class 0.5–0.1	80A
SYH1MF 252006C	20/25 × 6	Φ18.7 × 26.7 × 8.1	Class 0.5–0.1	100A
SYH1MF 312005C	21×29.5×5	Φ19.2 × 32.0 × 6.7	Class 0.5–0.1	120A
SYH1MF 302506C	25×30×6	Φ22.0 × 33.0 × 9.0	Class 0.5–0.1	120A

Note: The dimensions listed above are for customers’ reference only; custom-made products can be provided according to specific customer dimensions and performance requirements.

AC-DC Current Transformer, Single Core (SYH1MF)

Magnetic Core Structural Features: • Composed of a single, constant-permeability magnetic material with permeability μ = 1500–4000. Magnetic Core Performance Features: • Excellent resistance to DC bias currents, suitable for current ranges of transformers (1.5–500 A). • High linearity and high accuracy; suitable for transformer accuracy classes ranging from 0.5 to 0.1. Delivers excellent accuracy under both inductive and capacitive loads. • Good temperature stability. • Compact size.