Allen Bradley 156-C3P20NCB Solid State Contactor – 3-Phase, 20A, 600V AC, 20–275V AC / 24–190V DC Control Input, Zero-Cross Switching The Allen Bradley 156-C3P20NCB is a high-performance 3-phase solid state contactor (SSC) designed for quiet, fast, and reliable switching of AC loads in demanding industrial applications. Rated for 20A at 600V AC, it operates with a versatile AC or DC control voltage input — supporting 20–275V AC or 24–190V DC control ranges — offering exceptional flexibility for integration with modern automation systems. Engineered with zero-cross switching technology, this contactor minimises electrical interference and extends the lifespan of connected equipment by reducing inrush current and transients. Its open-type construction allows for custom panel installation, making it ideal for motor, heating, and process control applications where long-lasting, contactless switching is required. Technical Specifications Model: 156-C3P20NCB Allen Bradley Series: 156-C Solid State Contactors Product Type: 3-Phase Solid State Contactor Rated Operational Voltage: 600V AC Control Voltage Range (AC): 20–275V AC (50/60 Hz) Control Voltage Range (DC): 24–190V DC Rated Operating Current (AC-1): 20A Number of Phases: 3 Switching Type: Zero-cross switching Voltage Type for Actuation: AC/DC Mounting Type: Open type (panel mount) Electrical & Performance Details Control Voltage (AC): 20 to 275V AC Control Voltage (DC): 24 to 190V DC Operating Voltage: Up to 600V AC (three-phase) Rated Current: 20A (AC-1 duty) Switching Method: Zero-cross switching for reduced EMI Actuation Type: AC or DC control signal Response Time: Ultra-fast solid-state actuation Function: Provides silent, contactless switching without mechanical wear Mechanical Specifications Number of Phases: 3 Mounting: Panel mount (open type, not for DIN rail) Housing Type: Compact solid-state enclosure with integral heat dissipation Cooling: Requires sufficient ventilation or heat sink for rated load Connections: Screw terminals for secure control and power wiring Environmental & Application Suitability Typical Applications: Industrial motor control, heater control, pumps, fans, and resistive loads Use Case: Designed for high-reliability switching in continuous or high-cycle environments Switching Capability: Zero-cross switching ensures low-noise operation and reduced stress on components Installation Environment: Suitable for industrial control cabinets, automation panels, and OEM assemblies Compliance & Certifications UL / cUL Listed: Yes CE Marked: Yes EN 60947-4-3 Compliant: Yes RoHS Compliant: Yes Key Features & Benefits ✅ 3-phase solid-state design rated for 20A at 600V AC. ✅ Wide control voltage range (AC: 20–275V / DC: 24–190V) for flexible integration. ✅ Zero-cross switching reduces electrical noise and current surges. ✅ Maintenance-free operation – no moving parts or arcing contacts. ✅ Silent switching ideal for high-cycle applications. ✅ Compact, panel-mount design for custom enclosures. ✅ High reliability ensures consistent performance in demanding environments. �� Order the Allen Bradley 156-C3P20NCB from Drive Outlet Megastore At Drive Outlet Megastore we offer unbeatable Allen Bradley 156-C3P20NCB prices, with fast UK & EU delivery and expert support for solid state contactors, industrial automation, and power switching systems. Check stock now or request a quote. Achieve reliable, contactless load control with the Allen Bradley 156-C3P20NCB — advanced zero-cross switching technology engineered for industrial efficiency, available now from Drive Outlet Megastore.
