Description
Key Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | ABB |
| Model | REM615 |
| Series | Relion 615 |
| Product Type | Motor protection and control relay |
| Primary Use | Protection, control, measurement, and supervision of asynchronous motors |
| Motor Applications | Pumps, conveyors, presses, crushers, mixers, stirrers, fans, and blowers |
| Standard Configurations | Four standard configurations |
| Communications | IEC 61850, PRP, HSR, GOOSE, DNP3, IEC 60870-5-103, Modbus |
| Protection Functions | Motor start-up, loss of load, thermal overload, jam, phase reversal, voltage- and frequency-based protection |
| HMI | Large graphical display with local or web-browser-based access |
| Installation | Withdrawable plug-in unit design |
| Lifecycle Services | Extensive life-cycle services available |
Product Introduction & Supply Chain Strategy
ABB REM615 is a dedicated motor protection and control relay for asynchronous motors in manufacturing and process applications. ABB positions it as a compact, versatile relay for protection, control, measurement, and supervision, with support for motor start-up, thermal overload, and loss-of-load functions.
From a supply-chain view, REM615 is worth carrying as New Surplus buffer stock if your plant depends on a common motor-protection architecture. That approach protects uptime, reduces lead time variability, and keeps TCO under control compared with emergency sourcing during a motor trip event.
Installation & Configuration Guide
Stage 1: Pre-Installation
Lock out and tag out the motor feeder before any work begins. Use an ESD wrist strap, insulated hand tools, and a camera to record terminal wiring, setting groups, and communication labels. Confirm the motor CT/VT ratios, start logic, and exact relay configuration before removal.
Stage 2: Removal
De-energize the circuit unless your site procedure explicitly permits live replacement. Release the relay evenly and pull it straight out to avoid stressing connectors or adjacent terminal blocks. Do not force the unit if wiring slack or panel trim is limiting movement.
Stage 3: Installation
Replicate the original settings exactly, including protection curves, I/O mapping, and communication addresses. Seat the relay fully and secure it per the withdrawable design sequence. Reconnect control wiring only after confirming terminal numbers and wiring diagrams match the original record.
Stage 4: Power-On & Testing
Restore auxiliary power and verify the supply is stable before commissioning. Check the display, LEDs, and event logs, then perform secondary injection or functional testing if required by your procedure. Verify trip circuits, interlocks, and communications before returning the motor to service.
- REM615
- REM615
Firmware/Software Versions & Upgrade Notes
ABB’s current REM615 product pages confirm the platform, standard configurations, and communication options, but the exact firmware baseline depends on the specific unit and engineering environment. The safest replacement method is a like-for-like swap that preserves the existing firmware and settings set before energizing.
Avoid upgrading or downgrading firmware during the hardware swap unless ABB compatibility data for your exact station architecture confirms it. A mismatch can change protection behavior, communication performance, or downloaded settings, which is a high-risk outcome for motor protection.
Frequently Asked Questions
Is this really new?
Yes, the correct procurement position is New Surplus / Original New, not refurbished. That means traceable OEM inventory, intact packaging, and QC verification before shipment.
Why is it cheaper than OEM new but higher than refurb?
New Surplus usually comes from excess OEM inventory or controlled release stock. It prices below OEM list, but above lower-traceability inventory because it carries better risk control.
Yes, ABB still presents as a current motor protection family. The exact configuration still needs verification before purchase.
Can I hot-swap it?
Only if your motor-control design and site procedure explicitly allow it. For most motor protection applications, plan a controlled outage and follow your commissioning checklist.
Will my settings stay intact?
Do not assume retention without verification. Back up the relay settings, communication parameters, and setting groups before removal, then confirm them after installation.
What warranty should I expect?
Warranty terms depend on the supplier and QC package. For New Surplus protection relays, ask for serial traceability, test records, and a written warranty period tied to shipment.
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