Description

1SCA112710R1001 identifies an ABB OTM2500E3CM230C motorized change-over switch designed for high-current power transfer applications.

The complete ordering reference represents a specific OTM configuration, combining the switch frame size, pole arrangement, motor operating mechanism, and control voltage version.

Unlike conventional disconnectors or contactors used for circuit switching, this device belongs to ABB transfer switching equipment where the primary identification factor is the switching arrangement together with the mechanical operating system.

For industrial stock records, the full ABB article number is normally retained because different OTM variants may share similar external structures while having different current ratings, pole numbers, or operating methods.

Multiple modules and interface ports in the PLC chassis.jpg

Technical Data Record

Recorded Item	Specification
Manufacturer	ABB
Ordering Number	1SCA112710R1001
Product Designation	OTM2500E3CM230C
Product Family	OT Motorized Change-Over Switches
Device Type	Motorized C/O Switch
Rated Current	2500 A
Number of Poles	3 Poles
Motor Operation	Integrated Motor Drive
Motor Control Voltage	220–240 V AC
Rated Insulation Voltage (Ui)	1000 V
Rated Operational Voltage (Ue)	Up to 1000 V
Short-Time Withstand Current (Icw)	55 kA
Mounting Style	Panel Installation
Front Protection Degree	IP20

Model Configuration Breakdown

The OTM2500E3CM230C designation provides key identification details.

Model Element	Description
OTM	ABB motorized change-over switch family
2500	Current frame rating
E3	Three-pole configuration
C	Change-over switch version
M	Motorized operation
230C	Motor operating voltage variant

The model code is used to distinguish this unit from other OTM configurations with different current capacities or manual operating versions.

Switching Arrangement

This device is configured as a change-over switching unit rather than a standard on/off isolator.

Function	Description
Switching Type	Change-over operation
Main Circuit Poles	3
Operating Mode	Motorized
Manual Operation	Available through handle mechanism
Switching Position	I-0-II

The integrated motor mechanism allows electrical operation of the switching position, while manual operation capability is included for local handling.

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Electrical Capacity Record

The OTM2500E3CM230C belongs to the high-current section of the ABB OT transfer switch family.

Parameter	Value
Current Class	2500 A
Voltage Class	1000 V
Pole Configuration	Three Phase
Terminal Connection	Screw Connection
Short-Time Current Rating	55 kA

OTM Series Position

ABB OTM motorized change-over switches are available in different sizes and configurations.

The main differences between OTM models include:

Selection Area	Possible Variations
Current Rating	Different ampere classes
Pole Number	Different switching arrangements
Operating Method	Manual or motorized
Control Voltage	Different motor versions
Installation Format	Panel mounting options

The OTM2500E3CM230C represents one specific high-current motorized configuration.

Identification Before Replacement

When checking an existing transfer switch for replacement, the following information should be verified:

Check Item	Reason
ABB Article Number	Confirm exact configuration
Current Rating	Match power capacity
Number of Poles	Confirm circuit arrangement
Motor Voltage	Match operating mechanism
Switching Type	Confirm change-over function
Cabinet Dimensions	Verify installation compatibility

For large current switching equipment, matching only the ampere rating is not sufficient because different mechanical configurations may exist within the same product family.

Component Classification

Category	Details
Brand	ABB
Main Category	Switches & Disconnectors
Product Family	OT Transfer Switches
Series	OTM
Component Type	Motorized Change-Over Switch
Equipment Function	Power Transfer Switching

FAQ

Q: What is the primary function of the OTM2500E3CM230C switch?

A: The unit is designed for motorized transfer between electrical power sources in industrial distribution systems.

Q: Is 1SCA112710R1001 the same product as OTM2500E3CM230C?

A: Yes. OTM2500E3CM230C is the official ABB product designation associated with catalog number 1SCA112710R1001.

Q: What type of installations commonly use this switch?

A: The product is typically used in industrial facilities, generator systems, and electrical distribution applications requiring controlled source transfer.

Q: Does the switch support motorized operation?

A: Yes. The unit uses an electrically operated motor mechanism for switching functions.

Q: Which ABB product category includes this model?

A: The switch belongs to ABB switching and disconnector products for industrial power management systems.

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1SCA112710R1001 ABB OTM2500E3CM230C MOTORIZED C/O SWITCH