Housing design

SIMOTICS FD motors are designed with a rugged low-vibration cast-iron housing.

Water cooling

For optimum utilization of the marine environment, two watercooling concepts are available for SIMOTICS FD motors:

• Conventional with air-to-water heat exchanger. In this case, the warm air is routed from within the motor to a heat exchanger. After cooling here, it is drawn back into the machine again.
• The cooling water flows through a meander tube that is pressed into the stator core. The coolant is then extremely close to the points where the heat is generated and can therefore cool extremely efficiently.

Both concepts support the use of fresh water and are provided with measures that prevent the ingress of water into the motor interior, e.g. use of double-pipe cooler.

Cooling with seawater is possible with an air-to-water heat exchanger.

Motor connection

An undrilled entry plate is provided as standard, drilled entry plates with or without cable glands are available on request.

All marine motors generally have an external grounding terminal.

Specifications of the individual classification societies with order codes for ordering SIMOTICS FD motors in marine design

SIMOTICS FD in marine design

SIMOTICS FD motors for marine applications must be ordered with classification-specific options. This ensures that both the mechanical design of the motor and the tests are performed exactly in accordance with the instructions provided by the respective classification society.

There are four categories of classification-specific options:

The options of the categories listed above are combined with each other depending on the class of importance, classification society and other conditions.

If motors are to be designed according to the specifications of several classification societies, a special inquiry is necessary.

Motors for Non?essential Services

The technical design is in accordance with the ambient operating conditions specified by the classification society. One of the marine design options must be ordered by specifying the respective order code X00, X01, X12 ¹⁾, X03, X04, X05 or X06 (depending on the classification society). Acceptance inspections are not required. There is no distinction between ordering an individual motor or several motors.

¹⁾ Non-Essential Service is handled by CCS in the same manner as Essential Service

Motors for Essential Services

The technical design is in accordance with regulations of the classification society: Options with the order codes X10 to X16. An acceptance test certificate 3.2 according to EN 10204 and a product certificate of the classification society is provided with each motor. The options with order codes J70 to J82 (first motor), or J71 to J83 (additional motors) define the costs for certification of the motor.

Depending on the classification society, the test steps are controlled by the options with order codes X30 to X42 for the first motor (even numbers) and X31 to X43 for the additional motors (uneven numbers).

Motors for Essential Services for Propulsion

The technical design is in accordance with regulations of the classification society: Options with the order codes X20 to X26. An acceptance test certificate 3.2 according to EN 10204 and a product certificate of the classification society is provided with each motor. The options with order codes N40 to N52 (first motor), or N41 to N53 (additional motors) define the costs for certification of the motor.

Depending on the classification society, the test steps are controlled by the options with order codes X60 to X72 for the first motor (even numbers) and X61 to X73 for the additional motors (uneven numbers).

Additional options

Order code X99:

According to regulations, the acceptance tests are performed in the presence of an inspector of the classification society. If the customer or his representative is required to be present during the tests, order code X99 must be specified. In this case, the ordering party will be informed as to the dates in the form of an invitation.

All other tests can be ordered separately via the standard options for industrial motors. They will be performed in addition to the specified measurements. You will find the complete range of options for tests in section "Article No. supplements and special versions" under "Options".

Notice:

All options that can be ordered with order codes must also be ordered using these order codes.

If, for example, a motor according to the ABS classification is required for an ambient temperature of 45 °C, in addition to the order codes for marine options, order code D11 must also be specified.

Scope of design options X00 to X26

The design options include all classification-specific technical measures. These options are bundles of additional modifications and accessories which make a motor marine-compatible as well as classification-compliant and application-compatible.

Temperature class and coolant temperature

Standard motors and explosion-proof motors

Marine motors are normally designed for a coolant temperature of CT 45 °C or a cooling water temperature of 32 °C for utilization according to temperature class 155 (F). Motors according to the ABS classification that specify CT 50 °C are an exception. For reduction factors for cooling air and water temperature, see "Configuring the motors".

More detailed information is available on request.

Rating plate and acceptance test certificate

The metal rating plate indicates the relevant classification society and the associated coolant temperature. The housings of all certified motors are stamped with the certificate number and identifier of the society or testing agency, in accordance with regulations. These stamps are in the vicinity of the rating plate.

The results of the acceptance test are supplied with the motor certificate and the motor.

Degree of protection

The degrees of protection as specified in the catalog apply. For IP56 (non-heavy sea, order code K52) the formation of ice must be avoided.

Winding and motor protection

To monitor the winding and, if specified by the classification society, to monitor the bearings, the motors are equipped with PTC thermistors, temperature sensors or resistance thermometers. All water-cooled motors are equipped with leak sensors as protection against leaks in the cooling circuit. The complete scope of standard accessories depends on the society and importance class.

Paint finish

The paint thickness is greater than standard and is included in the option for the technical design. This is suitable for indoor and outdoor use under a roof or cover.

A paint finish according to EN ISO 12944-5 C5-M is used for unprotected installation on deck, especially aggressive atmospheres or offshore applications. This is part of order code E81, which upgrades a standard marine motor for these special ambient conditions.

Special paint colors and increased layer thicknesses are available on request.

Recommended special versions

• Rust-resistant screws (externally) – Order code M27
• Shock Pulse Measurement (SPM) nipple for monitoring the bearing vibrations for essential and non-essential motors – Order code G50
• Mounting of 2 Pt100 screw-in resistance thermometers in basic circuit for rolling-contact bearings for essential and non-essential motors – Order code A72
• IP56 degree of protection (non-heavy-sea) for protection against water jets from any direction – Order code K52
• Upgrading a marine motor for unprotected installation on deck, use in especially aggressive atmospheres or offshore applications – on request