Allen Bradley 156-C3P40NCDD Solid State Contactor – 3-Phase, 40A, 600V AC, 5–32V DC Control Input, Zero-Cross Switching

The Allen Bradley 156-C3P40NCDD is a high-performance 3-phase solid state contactor (SSC) designed for fast, reliable, and maintenance-free switching of AC loads. Featuring a DC control voltage range of 5–32V and rated for 40A at 600V AC, this open-type contactor is ideal for demanding industrial automation and heating applications where silent operation and long service life are essential.

Built with zero-cross switching technology, the 156-C3P40NCDD minimises electrical noise and inrush currents, protecting both loads and upstream equipment. Its solid-state design eliminates mechanical wear, making it a robust solution for frequent switching applications across three-phase systems.

Technical Specifications

Model: 156-C3P40NCDD Allen Bradley
Series: 156-C Solid State Contactors
Product Type: 3-Phase Solid State Contactor
Rated Operational Voltage: 600V AC
Control Voltage Range (DC): 5–32V DC
Rated Operating Current (AC-1): 40A
Number of Phases: 3
Switching Type: Zero-cross switching
Voltage Type for Actuation: DC
Mounting Type: Open type (not DIN rail mountable)

Electrical & Performance Details

• Control Supply Voltage: 5 to 32V DC input
• Operational Voltage: Up to 600V AC (three-phase)
• Rated Current: 40A at AC-1 duty
• Switching Method: Zero-cross switching for reduced surge current
• Output Type: Solid state, triac-based switching
• Response Time: Fast electronic switching with minimal delay
• Noise Level: Silent operation (no moving parts)
• Control Logic: DC logic control for reliable actuation

Mechanical Specifications

• Number of Phases: 3
• Mounting: Panel mount (open type)
• Housing Type: Compact solid-state heat-sinked module
• Cooling: Requires adequate heat dissipation (consult manufacturer guidelines)
• Wiring: Screw terminals for power and control connections

Environmental & Application Suitability

• Typical Applications: Resistive and inductive load control, heaters, motors, and lighting circuits
• Use Case: Ideal for high-cycle operations and vibration-prone environments where mechanical relays wear quickly
• Installation Environment: Industrial control panels, machinery cabinets, and automation systems

Compliance & Certifications

• UL / cUL Listed: Yes
• CE Marked: Yes
• EN ISO 60947 Compliant: Yes
• RoHS Compliant: Yes

Key Features & Benefits

✅ 3-phase 40A design supports heavy-duty industrial loads.

✅ Zero-cross switching reduces transients and electrical interference.

✅ Wide 5–32V DC control range for flexible integration with PLCs and controllers.

✅ Maintenance-free solid-state operation – no mechanical contacts to wear out.

✅ High switching speed ideal for precision control applications.

✅ Silent operation suitable for noise-sensitive environments.

✅ Long service life and reliable performance under continuous operation.

📦 Order the Allen Bradley 156-C3P40NCDD from Drive Outlet Megastore

At Drive Outlet Megastore we offer unbeatable Allen Bradley 156-C3P40NCDD prices, with fast UK & EU delivery and expert technical support for solid state contactors and motor control systems.

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Upgrade your control systems with the Allen Bradley 156-C3P40NCDD — reliable solid-state switching performance engineered for modern industrial automation, available at Drive Outlet Megastore.