PRODUCT DESCRIPTION
ASEA BROWN BOVERI OHB145J12 - Switch-Disconnector
This device is a manually operated, base-mounted switch-disconnector from the ABB OHB series, engineered for reliable load breaking and making in industrial power distribution and motor control applications. It provides isolation and switching capabilities for circuits up to its rated current, ensuring operational safety and maintenance accessibility. Designed for integration into control panels and electrical enclosures, it facilitates local control and emergency power cut-off.
Technical Specifications:
- SERIES/FAMILY: OHB Series
- COMPONENT TYPE: Switch-Disconnector
- ELECTRICAL SPECS:
- NOMINAL CURRENT: 145A
- NOMINAL VOLTAGE (AC): Up to 690V
- NOMINAL VOLTAGE (DC): Up to 220V
- NUMBER OF POLES: 3-pole or 4-pole
- FREQUENCY: 50/60 Hz
- UTILIZATION CATEGORY: AC-23A (motor switching), AC-22A (mixed loads), AC-21A (resistive loads)
- MECHANICAL/PHYSICAL:
- OPERATION TYPE: Manual, rotary handle (external handle typically ordered separately)
- MOUNTING TYPE: Base plate mounting
- TERMINAL TYPE: Screw terminals
- INTERFACE/CONTROL:
- CONTROL METHOD: Direct manual operation
- AUXILIARY CONTACTS: Optional (e.g., 1NO+1NC, 2NO+2NC)
- ENVIRONMENTAL/MOUNTING:
- IP RATING (TERMINALS): IP20 (finger-safe)
- AMBIENT OPERATING TEMPERATURE: -25°C to +70°C
- COOLING METHOD: Natural convection
- MOUNTING STYLE: Panel or enclosure internal base mounting
- COMPATIBILITY/APPLICATION: Main switch for industrial machinery, motor control centers (MCCs), power distribution panels, HVAC systems, safety isolation points.