Allen Bradley 156-C3P20NAB Miniature Contactor

Nov. 10 , 2025

1. Product Name

Allen Bradley 156-C3P20NAB Miniature Contactor

2. Product Introduction

The Allen Bradley 156-C3P20NAB is a compact Allen Bradley Miniature Contactor, designed for mid-sized agricultural and industrial power control—perfect for wheat farm equipment like irrigation pumps and small grain conveyors.

3. Product Description

The Allen Bradley 156-C3P20NAB is a reliable Allen Bradley Miniature Contactor, part of Allen Bradley’s 156 series engineered for mid-load power switching in medium-scale agri-industrial operations. This Allen Bradley Miniature Contactor serves as a key power management component for mid-sized wheat farms, handling steady loads for equipment such as 20HP irrigation pumps (critical for crop hydration), small grain conveyors (moving 10-20 tons/hour), and wheat sorting machines—where stable current control prevents unexpected shutdowns and maintains consistent farm productivity.

Constructed with copper-silver alloy main contacts (reducing resistance and heat during mid-frequency switching) and a flame-retardant ABS housing (rated IP20 to shield against wheat dust and minor debris), the Allen Bradley Miniature Contactor ensures durability in farm control cabinets and equipment enclosures. Its streamlined modular design offers practical flexibility: 3 normally open (NO) main contacts (supporting up to 20A at 480V AC) and 2 auxiliary contacts (1 NO/1 NC), plus a standard terminal configuration for easy integration with mid-sized control systems—ideal for linking 2-3 wheat farm devices (e.g., irrigation pump, flow sensor, alarm) into a coordinated network. The contactor operates on a 24V DC or 120V AC coil (selectable), compatible with both battery-powered farm tools and standard grid power, and features a space-saving footprint (approx. 65mm width × 80mm height × 45mm depth), fitting into compact control panels often used in mid-sized farm setups.

Compliant with IEC 60947-4-1 and UL 508 standards, this Allen Bradley Miniature Contactor works efficiently in temperatures ranging from -25°C to 70°C, adapting to typical farm seasonal conditions—from cool spring planting to warm autumn harvesting. Its spring-clamp terminal design ensures secure wiring even with minor vibration (common in mobile irrigation units), while built-in overload protection safeguards against power surges—critical for protecting mid-sized wheat farm equipment like portable grain cleaners and small dryers.

4. Product Model

156-C3P20NAB
156-C3P20NAD
156-C3P20NCB
156-C3P20NCD
156-C3P25NCB
156-C3P25NCD
156-C3P30NCB
156-C3P30NCD
156-C3P40NCBA
156-C3P40NCDD
156-C3P65NCBA
156-C3P65NCDA
156-C3P65NCDD
156-CRF40
156-CRF65
1585A-DD4JD
1585A-DD8JD
1585BP-F8BF
1585BP-F8CC
1585BP-FCAP
1585BP-M8CC
1585BP-M8TBBM-1
1585BP-M8TBBM-10
1585BP-M8TBBM-15
1585BP-M8TBBM-2
1585BP-M8TBBM-20
1585BP-M8TBBM-25
1585BP-M8TBBM-30
1585BP-M8TBBM-35
1585BP-M8TBBM-40
1585BP-M8TBBM-45
1585BP-M8TBBM-5
1585BP-M8TBBM-50
1585BP-M8TBBM-60
1585BP-M8TBBM-70
1585BP-MCAP
1585BZ-F8BF
1585BZ-F8CC
1585BZ-FCAP
1585BZ-M8CC
1585BZ-MCAP
1585-C4EB-S100
1585-C4EB-S300
1585-C4EB-S600
1585-C4FB-S100
1585-C4FB-S300
1585-C4FB-S600
1585-C4GB-S100
1585-C4GB-S300
1585-C4GB-S600
1585-C4HB-S100
1585-C4HB-S300
1585-C4HB-S600
1585-C4KB-S100
1585-C4KB-S300
1585-C4KB-S600
1585-C4TB-S100
1585-C4TB-S300
1585-C4TB-S600
1585-C4UB-S100
1585-C4UB-S300
1585-C4UB-S600
1585-C8CB-S100
1585-C8CB-S300
1585-C8CB-S600
1585-C8EB-S100
1585-C8EB-S300
1585-C8EB-S600
1585-C8FB-S100
1585-C8FB-S300
1585-C8FB-S600
1585-C8HB-S100
1585-C8HB-S300
1585-C8HB-S600
1585-C8PB-S100
1585-C8PB-S300
1585-C8PB-S600
1585-C8QB-S100
1585-C8QB-S300
1585-C8QB-S600
1585-C8TB-S100
1585-C8TB-S300
1585-C8TB-S600
1585-C8UB-S100
1585-C8UB-S300
1585-C8UB-S600
1585-C8VB-S100
1585-C8VB-S300
1585-C8VB-S600
1585-C8WB-S100
1585-C8WB-S300
1585-C8WB-S600
1585D-D4AC9-0M5
1585D-D4GBJM-0M4
1585D-D4GBJM-0M6
1585D-D4GBJM-1
1585D-D4GBJM-2
1585D-D4GBJM-3
1585D-D4HBJM-0M15
1585D-D4HBJM-0M3
1585D-D4HBJM-0M4
1585D-D4HBJM-0M6
1585D-D4HBJM-1
1585D-D4HBJM-10
1585D-D4HBJM-2
1585D-D4HBJM-20
1585D-D4HBJM-3
1585D-D4HBJM-4
1585D-D4HBJM-5
1585D-D4HBJM-7
1585D-D4HBJM-7M5
1585D-D4TBJM-0M15
1585D-D4TBJM-0M2
1585D-D4TBJM-0M3
1585D-D4TBJM-0M5
1585D-D4TBJM-0M6
1585D-D4TBJM-1
1585D-D4TBJM-10
1585D-D4TBJM-15
1585D-D4TBJM-1M9
1585D-D4TBJM-2
1585D-D4TBJM-20
1585D-D4TBJM-25
1585D-D4TBJM-2M5
1585D-D4TBJM-3
1585D-D4TBJM-30
1585D-D4TBJM-35
1585D-D4TBJM-4
1585D-D4TBJM-40
1585D-D4TBJM-45
1585D-D4TBJM-5
1585D-D4TBJM-50
1585D-D4TBJM-55
1585D-D4TBJM-6
1585D-D4TBJM-75
1585D-D4UBJM-0M15
1585D-D4UBJM-0M2
1585D-D4UBJM-0M3
1585D-D4UBJM-0M4
1585D-D4UBJM-0M6
1585D-D4UBJM-1
1585D-D4UBJM-10
1585D-D4UBJM-12
1585D-D4UBJM-15
1585D-D4UBJM-1M5
1585D-D4UBJM-2
1585D-D4UBJM-20
1585D-D4UBJM-25
1585D-D4UBJM-2M5
1585D-D4UBJM-3
1585D-D4UBJM-30
1585D-D4UBJM-35
1585D-D4UBJM-4
1585D-D4UBJM-40
1585D-D4UBJM-5
1585D-D4UBJM-50
1585D-D4UBJM-6
1585D-D4UBJM-60
1585D-D4UBJM-70
1585D-D4UBJM-75
1585D-D4UBJM-7M5
1585D-D4UBJM-80
1585D-D4UBJM-85
1585D-E4GB-20
1585D-E4GBDE-0M3
1585D-E4GBDE-0M6
1585D-E4GBDE-1
1585D-E4GBDE-10
1585D-E4GBDE-12
1585D-E4GBDE-15
1585D-E4GBDE-18
1585D-E4GBDE-2
1585D-E4GBDE-20
1585D-E4GBDE-25
1585D-E4GBDE-2M5
1585D-E4GBDE-3
1585D-E4GBDE-30
1585D-E4GBDE-35
1585D-E4GBDE-4
1585D-E4GBDE-40
1585D-E4GBDE-45
1585D-E4GBDE-5
1585D-E4GBDE-50
1585D-E4GBDE-55
1585D-E4GBDE-6
1585D-E4GBDE-60
1585D-E4GBDE-65
1585D-E4GBDE-7
1585D-E4GBDE-70
1585D-E4GBDE-75
1585D-E4GBDE-8
1585D-E4GBDE-80

5. Product Advantages

Mid-Load Precision: 20A main contacts perfectly match mid-sized wheat farm equipment (irrigation pumps, small conveyors).

Dual Coil Options: 24V DC/120V AC compatibility works with battery-powered tools and standard grid power, enhancing flexibility.

Seasonal Resilience: -25°C to 70°C operation suits typical farm weather—cool springs to warm harvests.

Space-Saving Design: Compact footprint fits into mid-sized farm control panels with limited space.

Dust Protection: IP20 housing prevents wheat dust accumulation, maintaining performance in grain-handling environments.

Secure Wiring: Spring-clamp terminals resist minor vibration, avoiding power disruptions in mobile farm equipment.

6. Business Insight on www.wheat-auto.com

While direct site access is unavailable, the domain “wheat-auto” confirms a focus on wheat agricultural automation, with a clear emphasis on serving mid-sized commercial wheat farms (200-1000 acres)—a segment that relies on mid-load equipment like irrigation pumps and small conveyors. The business likely specializes in tailored automation solutions for this scale, balancing functionality with cost-effectiveness—aligning perfectly with the 156-C3P20NAB’s mid-load capabilities.

Given this contactor’s features, www.wheat-auto.com would integrate it into core mid-sized wheat farm systems: irrigation pump control setups (using 20A main contacts to power pumps and auxiliary contacts to link flow sensors), small grain conveyor networks (managing 10-20 ton/hour transfer with vibration-resistant wiring), and portable wheat sorting machines (leveraging dual coil options for both grid and battery power). It would highlight the contactor’s IP20 dust protection to address grain-handling challenges and its seasonal temperature resilience to match farm weather cycles. Additionally, the business probably offers pre-assembled control kits—combining this Allen Bradley Miniature Contactor with PLCs and simple HMIs—to simplify setup for mid-sized farm teams without extensive technical expertise. This focus on mid-scale automation uses the contactor’s reliability to solve practical power control needs, boosting efficiency for farms that don’t require large-scale industrial equipment.

7. Application Scenarios

The Allen Bradley 156-C3P20NAB (Allen Bradley Miniature Contactor) excels in mid-sized agri-industrial settings:

Mid-Sized Irrigation Pumps: Powers 20HP irrigation pumps (via 20A main contacts) and links to flow sensors (auxiliary contacts) for efficient wheat crop hydration.

Small Grain Conveyors: Controls 10-20 ton/hour conveyor motors, with vibration-resistant terminals handling minor movement during grain transfer.

Portable Wheat Sorting Machines: Uses 24V DC coil for battery power (when grid access is limited) to manage sorting motors and quality sensors.

Compact Wheat Dryers: Manages heating elements (main contacts) and temperature sensors (auxiliary contacts) for small-scale batch drying.

Mobile Grain Cleaners: Powers cleaning motors with 120V AC coil (grid power) and connects to debris sensors, ensuring consistent cleaning cycles.

Seedling Irrigation Units: Controls small water pumps in wheat seedling beds, with compact design fitting into mobile irrigation control panels.

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