Technical Parameters
Electrical Characteristics
Number of Poles: 4P
Rated Operational Current (Ie):
AC-21A: 100 A (380–415 V / 500 V / 690 V)
AC-22A: 100 A (380–415 V / 500 V / 690 V)
AC-23A:
80 A at 380–415 V
60 A at 500 V
40 A at 690 V
Rated Operational Power (AC-23A):
22 kW at 220–240 V
37 kW at 400–415 V
37 kW at 500 V
37 kW at 690 V
Rated Operational Voltage: up to 750 V AC
Rated Insulation Voltage (Ui): 750 V
Rated Impulse Withstand Voltage (Uimp): 8 kV
Conventional Free-Air Thermal Current (Ith): 115 A (40 °C)
Rated Short-Circuit Making Capacity (Icm): 3.6 kA at 690 V
Rated Conditional Short-Circuit Current (Inc):
Up to 50 kA with appropriate fuses
Mechanical & Installation
Operating Type: Front operated
Mounting Type: Door mounting
Handle / Shaft: Not included
Terminal Type: Screw clamp terminals
Conductor Size: 10–70 mm² (Cu)
Tightening Torque: 6 N·m
Mechanical Durability: 20,000 operations
Degree of Protection (Front): IP20
Pollution Degree: 3
Standards & Approvals
IEC 60947-3
UL 98
CSA C22.2 No.4
Physical Data
Approx. Dimensions (W × H × D): 100 × 96 × 70 mm
Net Weight: approx. 0.5 kg
The ABB OT100FT4N2 is a compact non-fused switch-disconnector designed for safe and reliable manual isolation in low-voltage power distribution systems.
It features a 4-pole configuration with a front-operated mechanism, making it suitable for door-mounted installations in control panels and electrical enclosures.
The switch provides high switching performance under load conditions and complies with international IEC and UL standards.