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» Products » Motors 4" » ZDS Oil-Cooled Motors » OT - Three Phase |
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4” Three-phase Oil-cooled ZDS Motors
Quality in the Well
OT motors are ZDS three-phase submersible motors, cooled by special food grade lubricant, suitable for 4” wells or larger. All motors are manufactured to ISO 9001 standards. As of 2010, all ZDS motors with DRP come with built-in thermal protection, which stops the motor if overheated.
Standard
-0,37 - 5,5 kW
-3 x 380V-415V
-Voltage tolerance: +6% / -10% U N
-Thrust capacity: 1.500N; 2.500N; 4.500N
Pump Protector – DRP will protect the motor from:
-Dry running (with automatic restart).
-Frequent starts and stops.
-Overload & surges, such as from lighting.
-Low voltage protection.
Specifications
- 4” NeMa standard dimensions
- Stainless Steel Motor Casing
- Ball Bearing for axial and radial trust
- Degree of protection: IP68
- Insulation: Cl. F
- Rated ambient temp.: max. 40°C
- Maximum Immersion depth: 150m
- Cooling flow: min 8 cm/sec
- Starts/h: 150
- Mounting: vertical/horizontal
- 100% of motors are fully tested to all specifications
An overload protection and a control unit to start and run the motor must be installed according to eN 60947-4-1 trip time < 10sec. at 5 x IN
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