—P R O D U C T N OT E

Low voltage cast iron motors
For open deck installation
ABB open deck motors aredesigned to withstand the mostdemanding conditions of water andice on on-deck installations.

—01 ABB open deck
motors are designed towithstand the hardest
marine wet conditions.

Extremely robust and reliable
Open deck motors are mostly used in marine fordeck machinery, such as several winch types, deck
cranes, hatch covers, deep well cargo pumps andother equipments. Installation on the ship’s deckmeans that they are exposed to extremely harsh marine wet and ice conditions.
The motors in ABB’s open deck range are designed
to withstand salt, humidity and even waves washingover the deck. Robust, low temperature resistantdesigns can be supplied for vessels that operate in
Arctic or Antarctic waters, and Ex protected versions are also available.
All open deck motors supplied by ABB are designed
to comply with stringent safety criteria while providing the highest reliability. At the same time special attention is paid to marine classification requirements and individual customer needs.
Improved design
Compared to standard motors, ABB’s open deck motors feature a number of significant design improvements. In particular, they have enhanced cold resistance, corrosion protection and waterproofing.

In line with marine classification society rules, ABB’s
open deck motors are rated for ambient temperatures from -25°C to +50°C. In addition, ABB also supplies open deck motors rated for operation in ambient temperatures down to -55°C.
Main features•Very durable construction to cope with extreme
conditions•
Specially designed “low wear” shaft seal•
IP56 open deck protection (highest protection
class for motors: standard IP 56 is not adequate)•
Durable metal fan to withstand icy conditions•
Special type open deck fan cover•
Corrosion resistance improved with zinc primer
painting•
High power standstill heating•
Bearings greased for life in frame sizes 160-250•
Standard re-greased bearings in frame sizes
280-450•
Stainless bolts and nipples•
Special endshields•
Watertight enclosure IP67 open deck type terminal box

Special shaft seal
ABB’s open deck motors (frame sizes 200 andabove) feature a specially designed shaft seal to ensure that no water can enter the motor in either therunning or standstill conditions.
These “low wear” open deck seals have been developed by ABB to combine the benefits of radial andlabyrinth seals but without the drawback of highwear that is sometimes associated with radial seals.
Rugged and waterproof terminal box
The rugged terminal box on ABB’s open deck motors
prevents water from entering the motor under any
conditions.
Terminal box features include:• Durability tested according to EN/IEC 600790:2007, 26.4, 26.8, 26.9
• Very waterproof, rugged and durable, IP 66/IP 67
protection• Service temperature -55°C to +120°C• Can be turned 4*90°• Offshore zinc primer painting as standard• Durable solid silicone rubber seals on terminal box
frame-- Excellent thermal stability-- High stability and flexibility at low temperatures-- High stability to ultraviolet light-- Outstanding resistance to ageing-- Good resistance to fluids-- Compliance with flame retardant class UL 94 V0• No divided sealing surfaces• Top cover and flange screw threads sealed against
environment. Minimal thread corrosion makes
subsequent access to terminal box easier
Noise
The Open deck design can now be complemented
with low noise fan and fan cover design on frames
280-400.
It also improves the cooling on the motor frame andbearings. This demand comes from new requirements of inland and harbor noise requirements.
After-sales service
ABB products are supported by a full range of after-sales services. With a global service network andefficient technical and product support, ABB canprovide fast response to its customers no matter
where they are located.
How to order an open deck motor?
The general open deck variant code is 434.
For more information for open deck motors, pleaseask your local ABB representative.

Product offering
Process performance motors, M3BP
Output power, kW

37 to 1000

Frame size

280 to 450

Motors for explosive atmospheres, M3JP/KP/HP/GP
Output power, kW

4 to 1000

Frame size

160 to 450—

Output power, kW

100 to 1100 kW

Frame size

280-450

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9AKK107253 EN 03-2018

Waterjacket cooled motors, M3LP