Allen-Bradley 857-3C6DMA857 Motor Feeder Protection Relay – Industrial-Grade Electrical Safeguard Solution
As an ISO-certified industrial automation supplier with 20+ years’ experience, Stoker Automation Technology maintains 5000m² warehouse stocking critical components for metallurgy, oil & gas, power generation, and manufacturing industries. We specialize in obsolete PLC/DCS modules and industrial control replacements with 2-year warranty on select items.
Core Technical Specifications
- Voltage Rating: 240 VAC ±10%
- Current Capacity: 600A continuous (800A peak)
- Protection Features: Overload (50/51), Phase Loss (46), Ground Fault (50G/51G), Instantaneous Trip (50)
- Communication Protocols: Modbus RTU, DeviceNet™
- Environmental Compliance: IP20, -25°C to +70°C operation
- Certifications: UL 508, CSA C22.2 No.14, CE Marked
Industrial Performance Features
This UL-listed motor protection relay combines microprocessor-based monitoring with rugged industrial design, delivering:
- 16-bit ADC for precise current measurement (±1% accuracy)
- Programmable inverse-time curves (IEC 60255-3 compliant)
- Event recording with 64-cycle oscillography
- DIN-rail mounting (22.5mm width) for panel space optimization
Typical Applications
- Centrifugal pump motor protection
- Conveyor system feeder circuits
- HVAC compressor safeguards
- Mining equipment motor management
Technical Support & Service
Our certified engineers provide:
- Device configuration files (CID/Motor Data templates)
- RSLogix 5000 Add-On Profile (AOP) support
- Arc flash mitigation coordination studies
- 24-month performance warranty
Can’t find specific part numbers? Email technical requirements to abbdcs36@gmail.com for cross-reference solutions.
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