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ABBFuse protector
Product Model

OS800B04N1

Manufacturer

ABB

Category

Fuse protector

Product ID

74961

In Stock
Last updated: 2025/4/19
View Specifications
ABB OS800B04N1

Selling Points

  • 1Reliable Motor Protection: Designed to protect motors in heavy industry applications with world-class performance.
  • 2Modular Design: Easy and cost-efficient installation, maintenance, and use with 2-, 3-, and 4-pole installation options.
  • 3Self-Cleaning Contacts: Long, reliable electrical life with self-cleaning contacts that prevent damage and maintain performance.
  • 4Time-Saving Accessories: Adjustable shaft, mounting feet, snap-on auxiliary contacts, and terminal shrouds reduce installation time by up to 50%.
  • 5Enhanced Safety: Interlocking fuse covers prevent opening while the switch is in “ON” position, ensuring safety for authorized personnel.
Product Details
OS800B04N1
ABB

Technical Specifications

Detailed engineering parameters based on manufacturer documentation

ParameterValueParameterValue
Pollution Degree
3
Product Net Width
431 mm
Product Net Height
306 mm
Product Net Depth / Length
233 mm
Product Net Weight
18.464 kg 40.71 lb
Conventional Free-air Thermal Current (Ith)
Θ = 40 °C 800 A
Conventional Thermal Current (Ithe)
Fully Enclosed 720 A
Fourth Pole Position
Left Side
Fourth Pole Type
Switched - With Solid Link
Fuse Size
C1-C3
Fuse System
British Standard
Handle Type
Handle and shaft not included
Mounting Type
Base mounting
Number of Poles
4
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 75 W
Rated Conditional Short-Circuit Current (Inc)
(690 V) 80 kA
Rated Current (In)
Main Circuit 800 A
Rated Impulse Withstand Voltage (Uimp)
12 kV
Rated Insulation Voltage (Ui)
1000 V
Rated Operational Current AC-21A (Ie)
(500 V) 800 A (690 V) 800 A
Rated Operational Current AC-22A (Ie)
(380 ... 415 V) 800 A (500 V) 800 A (690 V) 800 A
Rated Operational Current AC-23A (Ie)
(380 ... 415 V) 800 A (500 V) 800 A (690 V) 800 A
Rated Operational Power AC-23A (Pe)
(220 ... 240 V) 250 kW (400 V) 450 kW (415 V) 450 kW (500 V) 560 kW (690 V) 710 kW
Rated Operational Voltage
Main Circuit 690 V AC
Rated Short-time Withstand Current Low Voltage (Icw)
for 1 s 18 kiloampere rms
Standards
IEC 60947-3
Switches Operating Mechanism
04 (Left Side)
Terminal Type
Lug terminals
Terminal Width
39 mm
Tightening Torque
50 ... 75 N·m
Tightening Torque
50 ... 75 N·m
Object Classification Code
Q
ETIM 8
EC001040 - Fuse switch disconnector
ETIM 9
EC001040 - Fuse switch disconnector
UNSPSC
39122233
IDEA Granular Category Code (IGCC)
5291 >> Fuse switch disconnector
eClass
V11.1 : 27371401
WEEE Category
5. Small Equipment (No External Dimension More Than 50 cm)
Manufacturer ID
1SCA022837R6050

Specifications may be subject to change without notice