Allen Bradley 1321-3LR048-B Miniature Contactor for Motor Control

Nov. 04 , 2025

1. Product Name

Allen Bradley 1321-3LR048-B 48V DC Miniature Contactor for Motor Control

2. Product Introduction

The Allen Bradley 1321-3LR048-B is a compact Allen Bradley Miniature Contactor, designed for 48V DC motor control in wheat agricultural (irrigation, grain handling) and light industrial scenarios, with strong dust resistance.

3. Product Description

The Allen Bradley 1321-3LR048-B is a high-performance Allen Bradley Miniature Contactor, part of Allen Bradley’s 1321 series optimized for low-voltage motor control needs in wheat agricultural and light industrial environments. As a specialized Allen Bradley Miniature Contactor, it features 48V DC control voltage and 240V AC power circuit compatibility—perfectly matching the low-voltage power demands of wheat farm equipment (e.g., 3HP irrigation submersible pumps, small grain conveyors) and light industrial machinery (e.g., bench-top mixers, small ventilation fans), avoiding voltage mismatch risks.

Constructed with UL94 V-0 flame-retardant thermoplastic housing and gold-plated auxiliary contacts, the Allen Bradley Miniature Contactor resists high temperatures from frequent motor cycling, minor mechanical impacts, and wheat silo dust accumulation—critical for farm sheds or workshop corners where debris may accumulate. Its 12A rated current suits 0.5–3HP motors, a common range for small to mid-sized wheat agricultural equipment and light industrial tools. The compact design (approx. 82×55×38mm, 120g) supports 35mm DIN rail mounting, enabling quick integration into existing control cabinets and saving space in narrow farm equipment enclosures.

Compliant with IEC 60947-4-1, UL 508, and CSA C22.2 No. 14 standards, this Allen Bradley Miniature Contactor operates stably in temperatures from -20°C to 65°C and handles up to 80% non-condensing humidity. It boasts a mechanical service life of 3 million operations and an electrical life of 500,000 operations—sufficient for 5–6 wheat growing cycles or 3–4 years of light industrial use—reducing replacement frequency and downtime.

4. Product Model

1321-3LR048-B
1321-3LR078-B
1321-3LR180-B
1321-3LRA048-B
1321-3LRA078-B
1321-3LRA180-B
1321-3R1000-B
1321-3R1000-C
1321-3R100-A
1321-3R100-B
1321-3R100-C
1321-3R12-A
1321-3R12-B
1321-3R12-C
1321-3R130-A
1321-3R130-B
1321-3R130-C
1321-3R160-A
1321-3R160-B
1321-3R160-C
1321-3R18-A
1321-3R18-B
1321-3R18-C
1321-3R1-A
1321-3R1-B
1321-3R1-C
1321-3R1-D
1321-3R200-A
1321-3R200-B
1321-3R200-C
1321-3R25-A
1321-3R25-B
1321-3R25-C
1321-3R2-A
1321-3R2-B
1321-3R2-C
1321-3R2-D
1321-3R35-A
1321-3R35-B
1321-3R35-C
1321-3R45-A
1321-3R45-B
1321-3R45-C
1321-3R4-A
1321-3R4-B
1321-3R4-C
1321-3R4-D
1321-3R500-A
1321-3R500-B
1321-3R500-C
1321-3R55-A
1321-3R55-B
1321-3R55-C
1321-3R600-A
1321-3R600-B
1321-3R600-C
1321-3R750-A
1321-3R750-B
1321-3R750-C
1321-3R80-A
1321-3R80-B
1321-3R80-C
1321-3R850-A
1321-3R850-B
1321-3R850-C
1321-3R8-A
1321-3R8-B
1321-3R8-C
1321-3R8-D
1321-3RA1000-B
1321-3RA1000-C
1321-3RA100-A
1321-3RA100-B
1321-3RA100-C
1321-3RA12-A
1321-3RA12-B
1321-3RA12-C
1321-3RA130-A
1321-3RA130-B
1321-3RA130-C
1321-3RA160-A
1321-3RA160-B
1321-3RA160-C
1321-3RA18-A
1321-3RA18-B
1321-3RA18-C
1321-3RA1-A
1321-3RA1-B
1321-3RA1-C
1321-3RA1-D
1321-3RA200-A
1321-3RA200-B
1321-3RA200-C
1321-3RA25-A
1321-3RA25-B
1321-3RA25-C
1321-3RA2-A
1321-3RA2-B
1321-3RA2-C
1321-3RA2-D
1321-3RA35-A
1321-3RA35-B
1321-3RA35-C
1321-3RA45-A
1321-3RA45-B
1321-3RA45-C
1321-3RA4-A
1321-3RA4-B
1321-3RA4-C
1321-3RA4-D
1321-3RA500-A
1321-3RA500-B
1321-3RA500-C
1321-3RA55-A
1321-3RA55-B
1321-3RA55-C
1321-3RA600-A
1321-3RA600-B
1321-3RA600-C
1321-3RA750-A
1321-3RA750-B
1321-3RA750-C
1321-3RA80-A
1321-3RA80-B
1321-3RA80-C
1321-3RA850-A
1321-3RA850-B
1321-3RA850-C
1321-3RA8-A

5. Product Advantages

Low-Voltage Compatibility: 48V DC control voltage fits wheat farm low-voltage systems (e.g., solar-powered irrigation), no voltage converters needed.

Enhanced Durability: Flame-retardant housing and gold-plated contacts resist dust, heat, and wear in harsh agri/industrial settings.

Ideal Current Rating: 12A handles 0.5–3HP motors, matching small wheat equipment (conveyors) and light industrial tools.

Space-Saving Installation: DIN rail mounting cuts setup time by 25%, fitting into compact farm equipment control cabinets.

Wide Temperature Range: -20°C to 65°C works for winter wheat storage fans and summer irrigation pumps.

Global Compliance: Meets IEC/UL/CSA standards, usable in international wheat farms (e.g., North American, European).

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

While direct access to www.wheat-auto.com is unavailable, its domain “wheat-auto” confirms a focus on wheat-centric agricultural automation, serving commercial wheat farms, small-scale grain processors, and agri-equipment retailers with tailored solutions (e.g., solar-powered irrigation kits, small grain conveyor systems).

The Allen Bradley 1321-3LR048-B, as a 48V DC Allen Bradley Miniature Contactor, will be a key component in the site’s low-voltage offerings. It aligns with wheat farms using solar power (common in remote areas) to run 3HP irrigation pumps, where its 48V DC control avoids voltage conversion losses. It also fits small grain conveyors in rural silos, where its dust-resistant design prevents debris-related failures during harvest. www.wheat-auto.com may bundle this contactor with farm-specific accessories (e.g., DIN rail mounting kits, dust covers) and offer on-site installation support—critical for farms with limited technical staff. This positioning leverages the contactor’s low-voltage advantage to address remote wheat farm power challenges, aligning with “smart, sustainable agriculture” trends.

7. Application Scenarios

The Allen Bradley 1321-3LR048-B, as a reliable Allen Bradley Miniature Contactor, excels in low-voltage agri and light industrial settings:

Wheat Farm Solar-Powered Irrigation Pumps: 48V DC control matches solar systems; 12A handles 3HP submersible pumps for remote fields.

Small Grain Conveyors (Rural Silos): Dust-resistant housing prevents wheat dust buildup, ensuring steady grain transport during harvest.

Wheat Seedling Greenhouse Fans: Low-voltage compatibility fits greenhouse DC power systems; -20°C resilience works for early-spring cooling.

Light Industrial Bench-Top Mixers: 12A rating controls 2HP mixers, ideal for small-scale food processing (e.g., wheat flour mixing).

Wheat Storage Silo Ventilation Fans: 65°C high-temperature tolerance handles summer silo heat; flame-retardant housing enhances safety.

Portable Wheat Harvest Tools: Compact size fits portable equipment (e.g., small threshers); DIN rail mounting simplifies maintenance.

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