Product Overview

The CSD Series Three-Phase Marine Isolation Transformer is specially designed for ships, offshore platforms, and other harsh marine environments. Equipped with a NEMA 3R rated metal enclosure and certified by the China Classification Society (CCS), the transformer provides reliable electrical isolation and stable power supply for marine power systems, lighting equipment, control systems, and precision instruments.

Designed to operate safely under conditions involving humidity, condensation, salt mist, oil vapor, mold, vibration, and vessel movement, the CSD series is an ideal marine-grade isolation transformer solution.

Main Models & Configurations

Drip-Proof Series

• CSD Series

• CSDⅡ Series

• CSDⅢ Series

• CDD Series

Waterproof Resin-Cast Series

• CDCS Series
  (Epoxy resin cast type with enhanced waterproof and moisture-resistant performance)

Technical Specifications

Key Features & Advantages

CCS Certified Marine Safety Standard

All models are inspected and approved by the China Classification Society (CCS), meeting marine electrical equipment safety standards and ship inspection requirements.

Designed specifically for marine applications, the transformer can withstand:

• Vessel rolling ≤22.5°

• Inclination ≤15°

• Continuous vibration and impact during navigation

Ensuring stable operation under demanding marine conditions.

NEMA 3R Marine-Grade Enclosure

Drip-Proof Structure (CSD / CDD Series)

Constructed with high-quality steel enclosure featuring:

• Ventilation structure

• Drip-proof protection

• Rodent intrusion prevention

Suitable for ventilated cabin installations.

Waterproof Structure (CDCS Series)

Epoxy resin cast construction provides:

• Excellent waterproof performance

• Superior moisture resistance

• Strong structural durability

• Efficient heat dissipation

Ideal for exposed deck or high-humidity marine areas.

The NEMA 3R enclosure protects against:

• Rain

• Condensation

• Oil mist

• Dust

• Corrosive marine atmosphere

High Efficiency & Low Loss Design

The core uses premium cold-rolled silicon steel laminations or CD-type wound cores processed with advanced technology to reduce:

• No-load current

• Core loss

• Operating temperature rise

Windings are manufactured using:

• High-strength enameled wire

• Double glass fiber-insulated wire

• Composite insulated conductors

Optional insulation classes up to Class H provide excellent heat resistance and anti-aging performance for high-temperature engine room environments.

Compared with traditional marine transformers:

• Smaller size

• Lower weight

• Lower energy consumption

• Improved installation flexibility

Convenient Marine Wiring Design

Drip-Proof Series

Terminal boards and switching terminals are integrated inside the enclosure, with cable entry through side cable glands for safe and convenient installation.

Waterproof Series

The top-mounted junction box simplifies cable entry and maintenance without dismantling the entire transformer structure.

Designed for Harsh Marine Environments

Suitable operating conditions:

• Altitude ≤1000m

• Ambient temperature ≤45°C

• Relative humidity ≤95%

Capable of reliable operation in:

• Condensation environments

• Oil mist environments

• Mold-prone areas

• High humidity marine conditions

Excellent insulation performance helps prevent leakage and short-circuit risks in damp marine environments.

Applications

✅ Marine main switchboards & emergency power systems
✅ Ship lighting systems
✅ Marine control circuits & instrumentation
✅ Offshore platforms & drilling rigs
✅ Engine room and deck electrical isolation
✅ Shipboard low-voltage power distribution systems

Product Advantages Summary

✅ CCS marine certification for shipboard applications
✅ NEMA 3R protection against moisture, rain, and dust
✅ High-efficiency low-loss transformer design
✅ Resistant to vibration, impact, and marine humidity
✅ Multiple enclosure structures available
✅ Easy marine installation and maintenance

Contact Us for Marine Isolation Transformer Solutions

Looking for reliable marine-grade isolation transformers for ships or offshore projects?

We provide:

• CCS-certified marine transformers

• OEM & customized marine power solutions

• Flexible voltage and capacity configurations

• Technical support for marine and offshore applications

• Fast production and global delivery

📩 Contact us today with your marine project requirements for a fast quotation and professional recommendation.