ABB 1SCA117991R1001 Change-Over Switch - 1250 A, 3P, IP20 CE
Part Number: 1SCA117991R1001
Quick Summary
ABB Change-Over Switch OT1250E03CK is designed to reliably switch heavy-duty circuits in industrial power distribution. In high-demand environments, downtime from mis-switching or difficult maintenance can cripple production; this unit minimizes those risks with robust mechanical design and clear front-end operation. The product carries CE conformity, a DNV certificate for OT16-2500_C, and RoHS/REACH declarations to support regulatory compliance. For procurement teams, these features translate into dependable performance across AC switches and fusegear, easy integration with existing switchgear, and a clear path to faster project execution.
Product Information
Extended Description
1SCA117991R1001 ABB: 1250A, 4 pole manual change-over switch including a direct mounted handle.
Conflict Minerals Reporting Template (CMRT)
CMRT - Conflict Minerals Reporting Template
REACH Declaration
Reach Declaration / AC Switches and Fusegear
RoHS Information
RoHs Declaration / AC Switches and Fusegear
RoHS Status
Following EU Directive 2011/65/EU and Amendment 2015/863 July 22, 2019
Data Sheet, Technical Information
Transfer, change-over and bypass switches. Catalogue OTC1GB 23-04
Instructions and Manuals
Manual change-over and transfer switches OT-C
Degree of Protection
Front IP20
Pollution Degree
3
Minimum Order Quantity
1 piece
Customs Tariff Number
85365080
Country of Origin
Finland (FI)
Product Net Width
400 mm | 15.75 in
Product Net Height
306 mm | 12.05 in
Product Net Depth / Length
309 mm | 12.17 in
Product Net Weight
33.76 kg | 74.43 lb
Package Level 1 Units
1 piece
Package Level 1 Width
339 mm | 13.35 in
Package Level 1 Depth / Length
444 mm | 17.48 in
Package Level 1 Height
338 mm | 13.31 in
Package Level 1 Gross Weight
35.6 kg | 78.48 lb
Package Level 1 EAN
6417019498522
Conventional Free-air Thermal Current (Ith)
Θ = 40 °C 1250 A
Degree of Protection
Front IP20
Distance Between Phases
Standard
Handle Color
Black
Handle Type
Direct mounted handle
Mounting Type
Base mounting
Number of Poles
3P
Operating Mode
Front operated
Pollution Degree
3
Position of Line Terminals
Top In - Bottom Out, Bottom In - Top Out
Power Loss
at Rated Operating Conditions per Pole 29 W
Rated Impulse Withstand Voltage (Uimp)
12 kV
Rated Insulation Voltage (Ui)
1000 V
Rated Operational Current AC-21A (Ie)
(380 ... 415 V) 1250 A | (500 V) 1250 A | (690 V) 1250 A
Rated Operational Current AC-22A (Ie)
(380 ... 415 V) 1250 A | (500 V) 1250 A | (690 V) 1250 A
Rated Operational Current AC-23A (Ie)
(380 ... 415 V) 1250 A | (500 V) 1250 A | (690 V) 1250 A
Rated Operational Current AC-31B (Ie)
(380 ... 415 V) 1250 A
Rated Operational Current AC-33B (Ie)
(380 ... 415 V) 1250 A
Rated Operational Power AC-23A (Pe)
(380 ... 415 V) 710 kW | (500 V) 900 kW | (690 V) 1200 kW
Rated Operational Voltage
Main Circuit 1000 V
Rated Short-time Withstand Current Low Voltage (Icw)
for 1 s 50 kiloampere rms
Switches Operating Mechanism
Mechanism at the End of the Switch | 03 (Left Side)
Terminal Type
Screw Terminals
Terminal Width
50 mm
Tightening Torque
acc. IEC 60947-1 50 ... 75 N·m
Transition Type
Open
Ampere Rating
1250 A
Tightening Torque
acc. IEC 60947-1 50 ... 75 N·m
Declaration of Conformity - CE
Declaration of Conformity / OT1000_C, OT1250_C, OT1600_C, OT800U_C, OT1200U_C
DNV Certificate
DNV Certificate / OT16-2500_C
Object Classification Code
Q
ETIM 8
EC000216 - Switch disconnector
WEEE Category
5. Small Equipment (No External Dimension More Than 50 cm)
Feature → Business Impact → Application: High-current capability of 1250 A with a 3P configuration enables reliable load transfer for large motors and power circuits, reducing the risk of arcing and improving uptime in critical lines. This supports heavy-duty industrial automation and process lines where continuous operation is essential. Application: main feeders and process line interconnections in manufacturing facilities. Feature → Business Impact → Application: Front-operated, direct mounted handle provides intuitive manual switching, cutting switching time and improving operator safety. Application: quick source transfer during maintenance or load rebalancing in panel-mounted assemblies. Feature → Business Impact → Application: IP20 protection and Pollution Degree 3 design reduce dust ingress and contamination risk in controlled factory environments, enhancing longevity and reducing service calls. Application: indoor switchgear in machine rooms and control panels. Feature → Business Impact → Application: 12 kV impulse withstand and 1000 V insulation support robust performance in medium-voltage networks, increasing reliability for high-energy applications. Application: protection switches in motor drives and process equipment. Feature → Business Impact → Application: Tightening torque specification (50–75 N·m) ensures secure terminations, lowering the chance of loose connections and associated faults. Application: safe field installation with screw terminals. Feature → Business Impact → Application: RoHS/REACH/CMRT compliance and DNV CE declarations reduce compliance risk, enabling faster qualification for regulated industries and diverse supply chains. Application: equipment procurement for automotive, food & beverage, and pharma OEMs that demand certified electrical protection devices.
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FAQs
This switch supports a main circuit rated at 1000 V with 1250 A and is designed for 380–415 V in AC-21/22/23 ratings. It uses screw terminals and base mounting, with a front-operated mechanism, making it compatible with standard heavy-duty switchgear racks and panel assemblies used in 3P distribution networks.
Key ratings include Ith of 1250 A, Ui of 1000 V, Uimp of 12 kV, Icw of 50 kA for 1 s, and P e ratings up to 1200 kW at 690 V. It supports AC-23A/AC-22A/AC-21A across 380–415 V, 500 V, and 690 V, with 3P configuration and 3P front operation for reliable load transfer.
The unit offers Front IP20 protection and Pollution Degree 3 suitability for controlled indoor environments. It carries CE conformity and a DNV certificate, with RoHS/Reach compliance, indicating suitability for regulated industries. For outdoor or extreme environments, additional enclosure protection would be required.
The device ships with CE Declaration of Conformity, a DNV OT16-2500_C certificate, and RoHS/Reach declarations. CMRT confirms conflict minerals reporting. These credentials support regulatory compliance, supplier qualification, and reduced risk in procurement for industries requiring certified electrical protection devices.
Plan for a tightening torque of 50–75 N·m on screw terminals and ensure correct base mounting during installation. Note the device’s 400 mm width, 306 mm height, and 309 mm depth, with a 33.76 kg mass, which informs enclosure sizing. Regular inspection of the direct mounted handle and front-operating mechanism helps maintain reliable switching performance.