Allen Bradley 1503F-M4GBD Miniature Contactor

Nov. 10 , 2025

1. Product Name

Allen Bradley 1503F-M4GBD Miniature Contactor

2. Product Introduction

The Allen Bradley 1503F-M4GBD is a high-current Allen Bradley Miniature Contactor, engineered for stable power switching in mid-sized agricultural and industrial systems, ideal for wheat farm machinery and processing equipment.

3. Product Description

The Allen Bradley 1503F-M4GBD is a robust, high-performance Allen Bradley Miniature Contactor, part of Allen Bradley’s 1503F series designed for medium-power control needs in demanding agri-industrial environments. This Allen Bradley Miniature Contactor stands out for its ability to handle higher current loads, making it a critical component in wheat farm systems like large grain conveyors, wheat cleaning machines, and mid-sized drying units—where consistent power management directly impacts crop processing efficiency and equipment longevity.

Constructed with high-conductivity copper alloy contacts (minimizing electrical resistance and heat generation) and a flame-retardant polycarbonate housing (rated IP20 to shield against agricultural dust and debris), the Allen Bradley Miniature Contactor maintains reliable performance in dusty wheat storage facilities or farm control rooms. Its compact design (approx. 68mm width × 82mm height × 45mm depth) balances high-current capability with space efficiency, fitting into standard electrical enclosures commonly used in farm machinery. The contactor supports 1-phase operation, features a 24V DC coil for compatibility with agricultural control systems, and includes built-in overload protection to prevent damage from power surges—critical for farm electrical grids that often face variable load conditions.

Compliant with IEC 60947-4-1 and UL 508 standards, this Allen Bradley Miniature Contactor operates reliably in temperatures ranging from -20°C to 70°C, adapting to cold winter storage operations and hot summer harvesting periods. Its push-in terminal design simplifies on-site installation and maintenance, reducing downtime during peak wheat farming cycles when equipment availability is crucial.

4. Product Model

1503F-M4GBD
1503F-M4GBU
1503F-M4GCD
1503F-M4GCU
1503F-M4KBD
1503F-M4KBU
1503F-M4KCD
1503F-M4KCU
1503F-M6GBD
1503F-M6KBD
1503-HM1
1503-HM1-G
1503-HM2
1503-HM2-G
1503S-4B
1503S-4C
1503S-6B
1503S-6B-G
1503S-6C
1503S-8B
1503VC-BMC5
1503-WHE4D
1503-WHE4E
1503-WHE4V
1503-WHE8D
1503-WHE8V
1503-WHM4D
1503-WHM4V
1503-WHM8D
1503-WHM8V
150B-F201FBD-3-20E
150B-F251FBD-3-20E
150B-F25FBD
150B-F25FBD-1
150B-F25FBD-3B-NB-NI
150BF25FBD4G4R6P8L20EHC3
150B-F43FBD
150-C108NBD
150-C108NBR
150-C108NCD
150-C108NCR
150-C135NBD
150-C135NBR
150-C135NCD
150-C135NCR
150-C16FBD
150-C16FBD-1
150-C16FBD-1-3
150-C16FBD-1-3-6P
150-C16FBD-1-6P
150-C16FBD-1-900
150-C16FBD-3
150-C16FBD-3-4R
150-C16FBD-3-4R-6P
150-C16FBD-900
150-C16FCD-3-4R-6P-901
150-C16FCD-6P
150-C16NBD
150-C16NBR
150-C16NCD
150-C16NCR
150-C19NBD
150-C19NBR
150-C19NCD
150-C19NCR
150-C201FBD-901
150-C201NBD
150-C201NBR
150-C201NCD
150-C201NCR
150-C251NBD
150-C251NBR
150-C251NCD
150-C251NCR
150-C25FBD-1
150-C25FBD-1-3-6P-901
150-C25FBD-1-4R
150-C25FBD-3-91
150-C25FBD-4R
150-C25FBD-90
150-C25FHD-3-90
150-C25FHD-6P-901
150-C25NBD
150-C25NBD-NC
150-C25NBR
150-C25NCD
150-C25NCR
150-C30FAD-3-4R-8L
150-C30FBD
150-C30FBD-1-3
150-C30FBD-1-3-6P
150-C30FBD-1-4R
150-C30FBD-3-4R-6P
150-C30FBD-4R
150-C30FBD-4R-6P
150-C30FBD-8L
150-C30FCD-1-3-6P
150-C30FCD-6P
150-C30FHD-1-4R-6P
150-C30NBD
150-C30NBD-NC
150-C30NBR
150-C30NCD
150-C30NCR
150-C317NBD
150-C317NBR
150-C317NCD
150-C317NCR
150-C361NBD
150-C361NBR
150-C361NCD
150-C361NCR
150-C37FAD
150-C37FBD
150-C37FBD-1
150-C37FBD-1-4R
150-C37FBD-1-6P
150-C37FBD-3-4R
150-C37FBD-3-900
150-C37FBD-6P
150-C37FBD-6P-8L-901
150-C37FCD
150-C37FCD-1
150-C37FCD-4R
150-C37FHD-1
150-C37FHD-3
150-C37NBD
150-C37NBR
150-C37NCD
150-C37NCR
150-C3FBD-3-4R
150-C3FBD-4R-6P-8L-901
150-C3FBD-6P
150-C3FBD-8L
150-C3NBD
150-C3NBR
150-C3NCD
150-C3NCR
150-C43FAD-1
150-C43FAD-1-3
150-C43FAD-3
150-C43FAD-3-4R
150-C43FAD-3-4R-8L
150-C43FBD
150-C43FBD-1-3
150-C43FBD-1-4R
150-C43FBD-1-4R-6P
150-C43FBD-1-4R-6P-8L
150-C43FBD-1-6P
150-C43FBD-3-6P-8L
150-C43FBD-3-6P-90
150-C43FBD-900
150-C43FCD
150-C43NBD
150-C43NBR
150-C43NCD
150-C43NCR
150-C480NBD
150-C480NBR
150-C480NCD
150-C480NCR
150-C60FAD-6P
150-C60FBD
150-C60FBD-1
150-C60FBD-1-3
150-C60FBD-1-3-4R-6P-90
150-C60FBD-1-4R
150-C60FBD-3-4R
150-C60FBD-3-4R-6P-8L-901
150-C60FBD-3-901
150-C60FBD-6P-8B-901
150-C60FCD-1-3
150-C60FCD-1-6P
150-C60FCD-6P
150-C60NBD
150-C60NBD-NC
150-C60NBR
150-C60NCD
150-C60NCR
150-C84
150-C84P
150-C85FAD-6P
150-C85FBD
150-C85FBD-1-3
150-C85FBD-1-3-4R-6P
150-C85FBD-1-3-4R-6P-90
150-C85FBD-1-3-4R-6P-901
150-C85FBD-1-4R

5. Product Advantages

High-Current Capacity: Handles medium power loads, ideal for mid-sized wheat farm equipment like large conveyors and cleaning machines.

Durable Contacts: Copper alloy construction reduces heat and wear, extending service life in frequent-switching agricultural applications.

Dust Protection: IP20-rated housing shields against grain dust, ensuring stable performance in wheat processing facilities.

Overload Safety: Built-in protection prevents damage from power surges, addressing unstable farm electrical grids.

Wide Temperature Range: -20°C to 70°C operation adapts to extreme seasonal weather on wheat farms.

Easy Installation: Push-in terminals simplify wiring and maintenance, minimizing downtime during critical farming periods.

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

While direct site access is unavailable, the domain “wheat-auto” confirms a focus on wheat-centric agricultural automation, catering to mid-sized wheat farms, regional grain cooperatives, and local food processing plants. The business likely offers integrated solutions, from medium-scale wheat harvesting equipment to grain processing and storage systems—aligning with the Allen Bradley 1503F-M4GBD’s high-current capability and agricultural resilience.

Given this contactor’s features, www.wheat-auto.com would integrate it into mid-power wheat farm machinery: large grain conveyors that move bulk wheat from fields to silos, wheat cleaning machines with multiple processing stages, and mid-sized drying units that handle post-harvest grain. It would leverage the contactor’s overload protection to address a key farm pain point—unstable electrical grids caused by simultaneous equipment operation (e.g., running conveyors and dryers together). Additionally, the business probably provides farm-specific support, such as seasonal maintenance checks and rapid replacement services during harvest, to align with the time-sensitive nature of wheat farming. This focus on practical, mid-scale automation uses reliable components like the Allen Bradley Miniature Contactor to boost productivity for growing wheat operations.

7. Application Scenarios

The Allen Bradley 1503F-M4GBD (Allen Bradley Miniature Contactor) excels in medium-power agricultural and light industrial settings:

Large Wheat Conveyors: Controls power flow to mid-sized conveyors that transport bulk wheat from harvest fields to storage silos, handling frequent on/off cycles reliably.

Wheat Cleaning Machines: Manages power for multi-stage cleaning equipment (removing debris from wheat), ensuring consistent operation during processing.

Mid-Sized Drying Units: Powers medium-capacity wheat drying machines, regulating heat and airflow to prevent grain spoilage post-harvest.

Grain Elevators (Small-Scale): Controls power for small grain elevators that lift wheat to storage silos, handling the load of bulk grain movement.

Wheat Milling Prep Equipment: Manages power for pre-milling machines (e.g., wheat hullers) in local flour processing facilities, supporting daily production.

Farm Irrigation Pumps: Switches power for medium-capacity irrigation pumps in mid-sized wheat fields, optimizing water distribution during dry seasons.

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