Marine Switchgear, Air Circuit Breakers (ACB) & Main Switchboard Components

ZE MARINE supplies marine switchgear including used, reusable and reconditioned switchboards, circuit breakers, contactors, relays, motor control equipment and other electrical controlgear for ships and marine applications. Depending on current availability, we can assist with complete assemblies as well as individual switchgear components.

Based in Alang, Gujarat, India, ZE MARINE supplies used and reconditioned marine electrical, automation and machinery equipment to shipowners, ship managers, ship repair companies, marine engineers, shipyards and equipment traders.

Marine Switchgear for Ships and Marine Electrical Systems

Marine switchgear is an important part of a vessel’s electrical power distribution and protection system. It can include switchboards, circuit breakers, contactors, protection devices, relays, busbars and control components used to distribute and control electrical power.

The IEC 60092 series covers electrical installations in ships, while IEC 60092-302-2:2025 specifically defines requirements for low-voltage marine power switchgear and controlgear assemblies. These assemblies are used with power generation, distribution and conversion systems and for controlling electrical consumers. See the official IEC marine switchgear standard.

ABB also provides marine electrical systems including switchboards and motor control equipment for vessels. Learn more about ABB marine electrical solutions.

10 Types of Marine Switchgear

1. Marine Switchboards

Marine switchboards distribute electrical power to different vessel systems and consumers. They can include incoming feeders, busbars, circuit breakers, protection devices, metering and control equipment.

2. Marine Circuit Breakers

Circuit breakers protect electrical circuits against abnormal current conditions and allow electrical circuits to be isolated for maintenance or operation.

Depending on the application, marine electrical systems may use air circuit breakers, moulded case circuit breakers, vacuum circuit breakers or other suitable technologies.

3. Marine ACBs

Air circuit breakers are commonly used in low-voltage power distribution and main switchboard applications. Selection depends on voltage, current, breaking capacity, protection settings and the original switchboard design.

ZE MARINE also deals in Marine Electrical Products for related electrical requirements.

4. Marine MCCBs

Moulded case circuit breakers can be used for feeder and distribution protection in marine electrical installations. The correct MCCB should match the electrical system and protection requirements.

5. Marine Contactors

Contactors are used to switch electrical loads and motors. They can be found in motor starters, pumps, fans, compressors, HVAC systems and other shipboard electrical applications.

6. Marine Relays

Protection, monitoring and control relays can form an important part of marine electrical systems. Depending on the installation, relays may be used for overload, under-voltage, over-current, protection or control functions.

7. Marine Motor Control Equipment

Motor control equipment can include contactors, overload relays, starters, protection devices and control components used with shipboard motors.

For variable-speed applications, see our Marine AC Drives and Marine DC Drives pages.

8. Marine Busbar and Distribution Components

Busbars and associated components distribute electrical power inside switchboards and distribution assemblies. Their ratings and configuration must match the original electrical design.

9. Marine Controlgear

Marine controlgear includes devices used to operate, control and protect electrical equipment. These can include switches, contactors, relays, control modules and related components.

10. Used and Reconditioned Marine Switchgear Components

Depending on availability, ZE MARINE can receive enquiries for used and reconditioned switchgear components, including breakers, contactors, relays, control devices and other electrical parts.

Used and Reconditioned Marine Switchgear

ZE MARINE supplies used, reusable and reconditioned marine electrical equipment from Alang, India.

Used marine switchgear can be considered for vessel maintenance, repair, replacement or retrofit requirements when a compatible unit is required. Reconditioned equipment may provide an economical alternative where the original equipment is no longer readily available, subject to technical compatibility and condition.

Before purchasing used or reconditioned switchgear, buyers should verify:

  • Manufacturer

  • Model number

  • Part number

  • Rated voltage

  • Rated current

  • Breaking capacity

  • Frequency

  • Number of poles

  • Protection functions

  • Trip unit type

  • Control voltage

  • Auxiliary contacts

  • Communication interface

  • Physical dimensions

  • Mounting arrangement

  • Serial number

  • Required quantity

For replacement enquiries, a clear photograph of the nameplate and front/rear side of the equipment is highly useful.

Marine Switchgear Brands

Depending on current stock and sourcing, ZE MARINE can receive enquiries for marine electrical equipment from manufacturers and brands such as:

  • ABB

  • Siemens

  • Schneider Electric

  • Terasaki

  • Mitsubishi Electric

  • Eaton

  • GE

  • Rockwell Automation / Allen-Bradley

  • Fuji Electric

  • Other marine and industrial electrical manufacturers

Availability depends on current inventory. Buyers should provide the exact model, part number and electrical specification instead of selecting equipment only by brand.

Marine Switchgear for Ship Power Distribution

A ship’s electrical distribution system can contain generators, main switchboards, distribution boards, transformers, motors, protection devices and other electrical consumers.

Marine switchgear forms part of this electrical infrastructure by helping distribute, control and protect electrical circuits.

ABB describes marine electrical solutions that include generators, switchboards and motor control equipment as well as drives and marine motors. View ABB’s marine electric solutions.

For generator-related requirements, visit our Marine Generators page.

Marine Switchgear and Protection Systems

Electrical protection is particularly important on ships because loss of electrical power can affect essential vessel systems.

Marine electrical installations therefore require appropriate protection and coordination between generators, switchboards, feeders and electrical consumers.

IEC 60092-202 addresses the main features of electrical protective systems for shipboard electrical installations. See the official IEC protection standard.

The correct replacement equipment should therefore be selected according to the original system design, rating and protection arrangement.

Marine Switchgear for Main Switchboards

Main switchboards can contain several types of electrical equipment, including:

  • Air circuit breakers

  • Busbars

  • Generator breakers

  • Feeder breakers

  • Protection relays

  • Metering instruments

  • Contactors

  • Control switches

  • Power monitoring equipment

  • Synchronizing equipment

  • Auxiliary contacts

  • Interlocking mechanisms

For main switchboard replacement requirements, provide photographs and the complete nameplate information whenever possible.

Marine Switchgear for Motor Control

Many shipboard systems depend on electric motors for pumps, fans, compressors, ventilation systems and other machinery.

Motor control equipment can include:

  • Motor starters

  • Contactors

  • Overload relays

  • Circuit breakers

  • Control relays

  • Fuses

  • Protection devices

  • AC drives

  • DC drives

ZE MARINE also supplies Marine Motors, Marine Pumps and Marine Air Compressors.

How to Select Marine Switchgear

Selecting the correct marine switchgear requires matching the replacement component with the original electrical system.

Rated Voltage

Check the equipment’s rated voltage and the vessel’s electrical system voltage.

Rated Current

The continuous current rating must be suitable for the intended circuit.

Breaking Capacity

For circuit breakers, the required short-circuit breaking capacity should be checked against the original system design.

Frequency

Confirm the operating frequency, particularly when replacing complete electrical equipment.

Protection

Check the required protection functions and trip characteristics.

Control Voltage

Contactors, breakers and control devices may have different coil or control voltages. This should be confirmed before ordering.

Physical Dimensions

For switchboard-mounted equipment, dimensions, mounting position and connection arrangement can be critical.

Model and Part Number

The original manufacturer’s model and part number are among the most important details for replacement identification.

Marine Switchgear Replacement and Retrofit

Vessels may require switchgear replacement because of equipment failure, ageing components, obsolete models, maintenance requirements or electrical retrofit projects.

For a replacement enquiry, send:

  • Existing equipment photograph

  • Nameplate photograph

  • Manufacturer

  • Model number

  • Part number

  • Voltage

  • Current

  • Frequency

  • Breaking capacity where applicable

  • Control voltage

  • Quantity

  • Application

  • Delivery location

ZE MARINE can check available used, reusable or reconditioned equipment against the supplied details.

For broader replacement requirements, visit our Marine Spare Parts and Refurbished Marine Equipment pages.

Marine Switchgear from Alang, India

ZE MARINE operates from the Alang/Bhavnagar region of Gujarat, India, and deals in used and reconditioned marine electrical equipment, automation systems, machinery and spare parts.

Equipment entering the used marine equipment market can include switchgear, electrical panels, motors, automation components and other shipboard equipment. Availability depends on current stock and sourcing.

Our location also allows us to serve buyers looking for used marine equipment from the Alang ship recycling ecosystem.

For wider ship equipment requirements, visit Buy Used Ship Machinery.

Why Choose ZE MARINE for Marine Switchgear?

ZE MARINE is an India-based supplier of used, reusable, reconditioned and refurbished marine electrical and automation equipment.

Our advantages include:

  • Sourcing from the Alang marine equipment market

  • Used and reconditioned equipment options

  • Marine electrical and automation experience

  • Support for model and part-number identification

  • Equipment for ship repair and maintenance

  • Supply for international marine buyers

  • Multiple electrical and marine equipment categories

  • Technical information can be reviewed before quotation

Our goal is to help buyers identify suitable switchgear based on the original manufacturer’s model, electrical rating and application.

Request a Quote for Marine Switchgear

If you are looking for marine switchgear, send us the make, model, rating and quantity required.

For replacement requirements, a clear photograph of the existing equipment and nameplate is highly recommended.

Send Us:

  • Manufacturer

  • Model number

  • Part number

  • Rated voltage

  • Rated current

  • Frequency

  • Breaking capacity

  • Control voltage

  • Quantity

  • Application

  • Delivery location

  • Nameplate photographs

ZE MARINE will check the requirement against available used, reusable or reconditioned equipment and provide a quotation where a suitable option is available.

Frequently Asked Questions About Marine Switchgear

What is marine switchgear?

Marine switchgear is electrical equipment used to control, distribute and protect electrical power on ships. It can include switchboards, circuit breakers, contactors, relays and other controlgear.

What equipment is included in marine switchgear?

Marine switchgear can include ACBs, MCCBs, circuit breakers, contactors, relays, protection devices, switchboards, busbars and motor-control equipment.

Do you supply used marine switchgear?

ZE MARINE deals in used, reusable and reconditioned marine electrical equipment. Availability depends on the required make, model, rating and current stock.

Can you supply marine circuit breakers?

Yes, ZE MARINE can receive enquiries for used and reconditioned marine circuit breakers, subject to availability and technical compatibility.

Can I send a photograph for switchgear identification?

Yes. A clear photograph showing the manufacturer’s name, model number, rating plate, part number and connections can help identify replacement equipment.

Do you supply marine switchboards?

ZE MARINE can receive enquiries for marine switchboards and related electrical components. Complete switchboard requirements should include dimensions, ratings, manufacturer and photographs where possible.

Do you supply AC and DC marine electrical equipment?

Yes. ZE MARINE also deals in AC and DC electrical equipment, including Marine AC Drives and Marine DC Drives.

Do you supply marine automation equipment?

Yes. For related automation requirements, visit our Marine Automation page.

Contact ZE MARINE for Marine Switchgear

Looking for marine switchgear, used marine circuit breakers, switchboards, contactors, relays or other ship electrical equipment?

Contact ZE MARINE with your make, model, part number, electrical rating, quantity and nameplate photograph.

We supply used and reconditioned marine electrical, automation and machinery equipment from Alang, India to international marine buyers.