Beckwith Electric M‑0169A Current Transformer

The Beckwith Electric M‑0169A is a high‑precision current transformer designed for use in protection and metering circuits. It provides accurate current scaling for relays, meters, and control devices in medium‑ and high‑voltage systems. The transformer is available in various ratios and burdens to match specific application requirements.

Constructed with a high‑permeability core and precision‑wound secondary, the M‑0169A offers excellent linearity and low phase error. Its epoxy‑encapsulated housing ensures resistance to moisture, dust, and mechanical stress, making it suitable for both indoor and outdoor installations.

Key Features

• Standard ratios: 100:5, 200:5, 400:5, 600:5, 800:5, 1200:5

• Accuracy class: 0.3 for metering, 2.5 for protection

• Burden: up to 15 VA

• Primary voltage: up to 15 kV (with bushing insulation)

• Frequency: 50/60 Hz

• Insulation class: B (130°C)

• Terminals: screw‑type or stud

Technical Specifications

Ratio accuracy: ±0.3% for metering, ±2.5% for protection; phase angle error: < 30 minutes; thermal rating factor: 1.0; insulation withstand: 2 kV AC for 1 minute; operating temperature: -30°C to +60°C.

Applications

Used in switchgear, transformer protection panels, and generator control systems. The CT provides current signals for overcurrent, differential, and directional relays, as well as for ammeters and power meters.

Installation and Wiring

Mount the CT on the busbar or cable as per the installation guide. Ensure proper grounding of the secondary circuit to avoid open‑circuit conditions. Connect the secondary leads to the relay or meter using appropriate wire gauge.

Reliability and Maintenance

The M‑0169A is built to withstand harsh environments. Periodic inspection of insulation and terminal tightness is recommended. The transformer is factory‑tested for turns ratio and polarity.

Why Choose the M‑0169A?

This current transformer offers a reliable and accurate solution for current sensing, backed by Beckwith’s quality assurance. Its versatility and robust design make it a preferred component for power system engineers.

In summary, the Beckwith Electric M‑0169A provides accurate current measurement for protection and control applications, ensuring system reliability.