ABB RM3112A Fan and Blower - 0.75 HP, 60 Hz, OPEN
Part Number: 7BRM3112A
Quick Summary
RM3112A fan and blower moves air efficiently for industrial equipment cooling and ventilation. This 0.75 HP, 1725 rpm, 230/460 V three-phase motor is built for continuous duty in open-enclosure environments. Many engineers struggle with mounting constraints, vibration, and compatibility with resilient bases, but RM3112A aligns with a standard Baldor-Reliance footprint and resilient mounting to simplify installation. It carries NEMA design designation B, CSA/UR certifications, and RoHS compliance, underscoring reliability in regulated industries. With direct-on-line starting and a 1.25 service factor, this motor delivers predictable performance while reducing control complexity and energy waste. In short, it supports efficient, maintainable cooling for manufacturing lines and automated systems.
Product Information
Extended Description
7BRM3112A ABB: Fan and Blower 0.75 Hp 230 V (RM3112A)
Configuration Only
No
Country of Origin
United States (US)
Lead Time
0 day
Made To Order
No
Product Sales Status
Active
Quote Only
No
Stocked At Warehouses
EGAUT001EXPU
Warranty Return
Product under warranty must be returned
Configuration Only
No
Country of Origin
United States (US)
Lead Time
0 day
Made To Order
No
Product Sales Status
Active
Quote Only
No
Stocked At Warehouses
GBINS001EXPU
Warranty Return
Product under warranty must be returned
Country of Origin
United States (US)
Lead Time
0 day
Made To Order
No
Product Sales Status
Active
Quote Only
No
Stocked At Warehouses
SGIND004EXPU
Warranty Return
Product under warranty must be returned
Country of Origin
United States (US)
Lead Time
0 day
Made To Order
No
Product Sales Status
Active
Quote Only
No
Stocked At Warehouses
USABB014EXPU
Warranty Return
Product under warranty must be returned
ABB Type Designation
.75 AIR OVERHP,1725RPM,3PH,60HZ,56
Altitude
1000 m
Ambient Temperature
40 °C
Bearing
6203, Ball
Bearing NDE
6203
Brake Present
No
Brand / Label
Baldor-Reliance
Catalog Number
RM3112A
Certification Agency
CSA | UR
Country of Origin
United States (US)
Customs Tariff Number
85015100
Design
B
Dimension Diagram
34LYK019: Dimension Sheet
Direction of Rotation
Both sides
Drive End Flange Type
Resilient Mount
ETIM 7
EC001851 - Electric motor
Efficiency Level
Not Regulated / Exempt | Undefined Efficiency
Electrical Data
Enclosure Type
OPEN
Frame Material
Steel
Frame Size
56
Frequency (f)
60 Hz
Global Commercial Alias
RM3112A
Gross Volume
2110.969 in³
Gross Weight
27 lb
Horsepower Rating UL/CSA
0.750 Hp
IC Class
OPEN
IDEA Granular Category Code (IGCC)
1318 >> Heating and cooling system motor AC
IE Class Data (50 Hz)
IE Class NA
IE Class Data (60 Hz)
IE Class NA
IM Class
F1
Insulation Class
B
Invoice Description
.75 AIR OVERHP,1725RPM,3PH,60HZ,56,3420
Lubrication
Regreasable
Made To Order
No
Medium Description
Fan and Blower, 0.75 HP, 1800 RPM, Frame Size 56, ResilientMount Mounting, 3 Phase, OPEN Enclosure, 230/460 V, 60 Hz (RM3112A)
Minimum Order Quantity
1 piece
Motor Base Type
Resilient
Motor Frame Size
56
Mounting Orientation
Horizontal
Mounting Position
F1
NEMA Design Code
B
Number of Phases
3
Number of Poles
4P
Number of Poles (High)
4
Number of Speeds
Single Speed
Order Multiple
1 piece
Output Power
0.75 Hp
Power Factor
60 %
Product Name
Fan and Blower
Product Net Depth / Length
16.5 in
Product Net Height
11.125 in
Product Net Weight
27 lb
Product Net Width
11.5 in
Product Type
Undefined
Quote Only
No
Rated Current (In)
3 A | 1.5 A
Rated Efficiency
74 %
Rated Speed
1725 r/min
RoHS Information
RoHS Compliant
Selling Unit of Measure
piece
Service Factor
1.25
Service Factor Percentage
1.25 %
Shaft Diameter
0.63 in
Short Description
0.75 HP, 1800 RPM, Frame Size 56, ResilientMount, 3 PH, OPEN, 230/460 V
Standards
NEMA
Starting of Motor
Direct On Line
Stocked At (Warehouses)
China | Alabama, United States | Alaska, United States
Synchronous Speed (vsyn)
1800 r/min
Temperature Class Default
--
Two Speed Motor
No
Type of Duty
Continuous
UNSPSC
26101105
Voltage Code
K
Voltage Rating
230 V | 460 V
Feature -> Business Impact -> Application: The RM3112A delivers 0.75 HP at 1725 r/min in a frame size 56 with 230/460 V, 60 Hz three-phase operation, enabling compact yet powerful cooling fans for tight spaces and automated equipment. This combination reduces system footprint while increasing cooling capacity, ideal for conveyors and process enclosures where space is at a premium. The resilient base and open enclosure minimize vibration transfer and simplify mounting, translating to quieter operation and easier service in densely packed control cabinets and machine rooms. With regreasable 6203 ball bearings and a service factor of 1.25, maintenance windows are predictable and downtime is minimized, supporting extended asset life in harsh industrial environments. NEMA Design B, RoHS compliance, and CSA/UR listings provide regulatory confidence, so integration with standard controls and safety interlocks is straightforward. Direct On Line starting reduces wiring complexity and speeds commissioning, while the 0.75 HP rating keeps energy use in check for continuous duty tasks. This motor is tailor-made for reliable cooling in industrial equipment, HVAC sleeves, and air-handling units where durability and ease of installation matter most.
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FAQs
Yes. RM3112A is a three-phase motor rated for 230/460 V operation at 60 Hz with direct-on-line starting. It delivers 0.75 HP at 1,725 r/min and fits frame size 56, making it suitable for standard industrial controls and line power. Ensure your supply voltage and protective devices are correctly sized for a 3 A nominal draw.
RM3112A supports resilient mounting with horizontal orientation (F1) and an OPEN enclosure. The resilient base reduces vibration and noise, improving life for equipment such as conveyors and cabinet cooling. Installation benefits include easier alignment with drives and less vibration transfer to the machine frame; verify mounting hardware compatibility and secure base fastening.
The RM3112A carries NEMA design designation B, CSA/UR listings, and RoHS compliance. These certifications help ensure reliable continuous-duty operation in regulated industries. When integrating into a machine, confirm local electrical standards, EMC practices, and that replacements or lubricants comply with RoHS and CSA/UR requirements.
The motor has a service factor of 1.25 and a rated efficiency of about 74%. This means better load tolerance and energy efficiency in fluctuating conditions, translating to lower energy costs and extended motor life in cooling and ventilation applications. Maintain proper ventilation and insulation to preserve performance under peak loads.
Opt for direct-on-line starting to simplify wiring and control schemes, use the resilient base to dampen vibrations, and schedule regreasable bearing lubrication to reduce maintenance intervals. Verify voltage compatibility (230/460 V) and mounting orientation (horizontal, F1) for a quick, reliable setup with minimal runtime adjustments.