The ABB GLBS200516R5104, corresponding to series model EKD3P-8E/2-40SK, is an industrial-grade low-voltage disconnect switch designed for safe isolation and reliable circuit protection in demanding electrical distribution systems. With a 40A rated operational current, 1000V rated insulation voltage, and an impressive 80kA rated short-circuit withstand capacity, this unit is engineered to handle the rigorous demands of motor circuits and industrial power distribution.
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Key Technical Specifications
The EKD3P-8E/2-40SK is built to deliver dependable performance across a wide range of operating conditions:
Parameter Specification
Rated Operational Current (Ie) 40 A
Rated Insulation Voltage (Ui) 1000 V
Rated Impulse Withstand Voltage (Uimp) 8 kV
Rated Short-Circuit Withstand (Iq) 80 kA
Utilization Category AC-21A / AC-22A / AC-23A
Number of Poles 3P
Rated Operational Voltage (Ue): AC 415V / 500V / 690V
Frequency 50/60 Hz
Protection Degree: IP30 (front)
Operating Temperature: -25°C to +70°C
Mounting: DIN rail or panel-mounted
Weight ≤ 0.5 kg
High Short-Circuit Withstand for Critical Applications
One of the standout features of the GLBS200516R5104 is its 80kA rated short-circuit withstand capacity. In industrial environments where large short-circuit currents are a real risk, standard disconnect switches can suffer from contact welding, leading to isolation failure. The EKD3P-8E/2-40SK is specifically engineered to prevent this scenario, ensuring that the isolation function remains reliable even under extreme fault conditions.
AC-23A Utilization Category for Motor Loads
With full coverage of AC-21A, AC-22A, and AC-23A utilization categories, this disconnect switch is capable of direct on-load breaking of motor-type inductive loads. This makes it a suitable choice for industrial motor circuits where frequent switching and high inductive loads are present.
Robust Design for Industrial Environments
The unit features a 1000V rated insulation voltage, adapting to the vast majority of industrial low-voltage distribution systems. Its compact design (≤ 0.5 kg) and dual mounting options (standard DIN rail or panel-embedded) allow for flexible integration into both new installations and retrofit projects. The IP30 front protection and -25°C to +70°C operating range ensure reliable performance in typical industrial control cabinets and distribution panels.
Applications
The ABB EKD3P-8E/2-40SK is well-suited for:
Industrial motor isolation and protection
Low-voltage distribution circuit isolation
Petrochemical, power, and metallurgical plant electrical systems
OEM machinery and control panel builds requiring robust disconnect capability
