Technical Parameters
Parameter Category Specification
Product Series G-H Series High-Performance Contactors
Device Type 3-Pole AC Power Contactor
Standard Compliance IEC/EN 60947-4-1, IEC/EN 60947-1
Main Circuit Ratings
• Rated Operational Voltage (Ue) Up to 690 V AC, 50/60 Hz
• Rated Insulation Voltage (Ui) 1000 V AC
• Rated Operational Current (Ie) at AC-3 100 A (This is the typical rating for the GSH201 frame at 400V. 201 denotes the 100A frame size).
Control Coil
• Coil Type AC Operated (Indicated by C in -C20).
• Coil Voltage Code The 20 in -C20 likely specifies a standard AC voltage. Common assignments: -C20 often corresponds to 230V AC, 50/60 Hz. (Critical Note: This must be verified with the official ABB catalog as coding can vary by region and production year.)
Utilization Categories
• AC-3 Squirrel-cage motors: Starting, switching off during running. Typical rating: 100 A at 400V.
• AC-4 Squirrel-cage motors: Starting, plugging, inching. Rating is significantly lower (e.g., ~40-50A).
• AC-1 Non-inductive or slightly inductive loads.
Switching Capacity
• Rated Making Capacity (Icm) Typically 1000 A (peak) at 415V AC, for handling motor inrush currents.
• Rated Breaking Capacity (Icu) Typically 10-15 kA at 415V AC (with appropriate short-circuit backup protection).
Endurance
• Mechanical Life ≥ 10 million operations.
• Electrical Life (AC-3) ≥ 1 million operations at full rated load.
Power Consumption (Coil)
• Pick-up (Inrush) ~1000 VA (typical for AC coil).
• Holding (Sealed) ~20 VA (typical, energy-efficient design).
Auxiliary Contacts Modular auxiliary contact blocks can be added (e.g., 2 NO + 2 NC). Rated typically 10A, 600V AC.
Terminals Screw-clamp terminals suitable for large cable cross-sections.
Mounting Can be foot-mounted on a panel or using a DIN rail adapter (optional).
Ambient Temperature Operating: -25°C to +60°C (with derating above 40°C).
Protection Degree IP00 (open type), must be installed in an enclosure.
Approximate Dimensions ~ 155mm (L) x 130mm (W) x 120mm (H) (varies with accessories).
Approximate Weight ~ 2.5 kg (base unit).
Key Features • High electrical and mechanical endurance
• Modular design for auxiliary contacts
• Energy-saving AC magnet system
• Transient suppression for AC coils
• Contact position indicator
The ABB GSH201-C20 is a high-performance, medium-duty AC power contactor from ABB's G-H series, designed for reliable switching of three-phase AC motors and other loads in industrial applications requiring robust construction and long electrical life.