ABB 93-3004-04 (1MRK002122-ABr12) – Plug‑in spare module for ABB protection and control IEDs

The ABB 93-3004-04, mapped to ordering code 1MRK002122-ABr12, is a genuine ABB plug‑in module used in protection and control installations—typically as a field‑replaceable spare within ABB Relion-based systems. From my experience, users look for this exact 1MRK code to ensure drop‑in compatibility and to keep outage time to a minimum. You might notice the assembly code and the 1MRK code both referenced on your relay’s nameplate; matching those is usually the fastest way to confirm fit.

Our Order Placement Process and Guarantees

• Warranty: 365 days
• Lead time: 1 week for in‑stock items; no more than one month at the latest
• Payment: 50% advance payment; full payment prior to delivery
• Express delivery: FedEx, UPS, DHL

Key Features

• Genuine ABB spare (1MRK002122-ABr12): Ensures mechanical fit and electrical compatibility with the intended ABB IED, reducing integration risk.
• Plug‑in form factor: Designed for quick replacement in the field; typically no panel rework required.
• Host‑powered design: Draws power from the relay/IED backplane, so there’s usually no external power wiring.
• Industrial‑grade build: Built to handle utility and substation environments where temperature, vibration, and EMC can be demanding.
• Configuration continuity: In many cases, the host IED recognizes the module without complex re-commissioning, helping you get back online faster.
• Traceable codes: The 93-3004-04 assembly reference and 1MRK code make lifecycle and spares management straightforward.

Technical Specifications

Application Fields

This module is used in power system protection and automation deployments where ABB Relion or related IEDs are installed. Typical sites include medium‑ and high‑voltage substations, industrial power distribution (metals, oil & gas, mining), and utility grid modernization projects. Engineers usually keep one or two on hand as a critical spare to shorten Mean Time To Repair during outages or scheduled maintenance.

Advantages & Value

• Lower downtime risk: Direct replacement reduces on‑site rework and speeds restoration.
• Compatibility peace of mind: The 1MRK code helps match hardware revisions—important when fleets include mixed generations.
• Controlled lifecycle cost: Stocking genuine spares typically costs less than emergency retrofits or redesigns.
• Support readiness: Easier for maintenance teams and OEM support to diagnose and validate when parts are original.

Installation & Maintenance

• Environment: Mount within a properly ventilated control cabinet; follow the host IED’s spacing and temperature guidelines.
• Handling: De‑energize the panel before removal/installation; observe ESD protection (wrist strap, anti‑static bag).
• Wiring: Connect via the host’s designated connectors/backplane; avoid over‑tightening any captive screws.
• Commissioning: After insertion, verify device diagnostics in the IED HMI or engineering tool; confirm signals/logic behave as expected.
• Maintenance: Keep terminals and sockets clean; schedule periodic inspection with routine relay firmware checks (if applicable to the host system).

Quality & Certifications

• Compliance: ABB protection system components typically comply with CE and RoHS requirements and are produced under ISO 9001 quality systems.
• Safety/EMC: Designed for utility environments; EMC immunity and surge withstand are aligned with the host IED family standards.
• Warranty: 365‑day warranty from us; manufacturer policies may apply depending on the installation context.

Tip from the field: maintenance engineers tell me this module slots straight in and the relay recognizes it without fuss, as long as the 1MRK code matches their installed hardware. If you’d like, send a photo of your relay nameplate and we’ll double‑check the compatibility before you place the order.