Siemens PLC sourcing desk · Multi-brand automation spares [email protected] +86 18359268345
ABB In Stock OK

ABB EB143887SPER 1C1-AA Trip Circuit Supervision Relay

Request verified availability, condition, replacement risk review, packing options and courier lead time for 1C1-AA.

Exact part1C1-AA RFQ auto-fillPart number attached Export packingDHL / FedEx / UPS Sales replyEmail or WhatsApp
BrandABB Part Number1C1-AA ConditionAvailability Check Lead TimeRFQ Confirmation DocumentsDatasheet / photos by RFQ ShippingExport packing available
Auto-filled RFQ 1C1-AA

Click Request Quote and the part number is inserted into the inquiry form automatically.

Procurement Data

Key Product Information

Core fields for model confirmation and RFQ routing. Detailed product narrative remains below.

Brand
ABB
Primary Part Number
1C1-AA
Product Type
Trip Circuit Supervision Relay
Series / Family
REF Series
Manufacturer
ABB Ltd.
Country of Origin
SE
Model Function
Trip Circuit Supervision (TCS) — continuous coil integrity monitoring
Catalog Category
Sensors & Switches
Model confirmed for inquiry 1C1-AA Send quantity, destination and urgency. The RFQ form keeps this part number attached.
Request Quote
Product Overview

ABB EB143887SPER 1C1-AA — Procurement Strategy for Mission-Critical Trip Circuit Supervision

When a circuit breaker fails to trip during a fault event, the consequences extend far beyond equipment damage — production lines halt, safety systems are compromised, and the financial exposure from unplanned downtime can dwarf the cost of the component itself. The ABB EB143887SPER 1C1-AA Trip Circuit Supervision Relay is the sentinel that prevents that scenario. It continuously monitors the integrity of the trip coil circuit, issuing an alarm the moment an open-circuit condition is detected — before a fault ever demands a response.

At siemensplc.com, we operate as a specialist industrial component supplier with deep roots in the ABB protection relay ecosystem. Our procurement model is built around one principle: your plant should never stop because a relay was unavailable, delayed, or counterfeit. Whether you are maintaining a fleet of medium-voltage switchgear panels across multiple sites or commissioning a new substation, we provide the sourcing depth and commercial flexibility that OEM channels rarely match.

Request an Official Quote: [email protected] | WhatsApp: +86 18359268345

Procurement Specifications

Part Number / SKU EB143887SPER 1C1-AA
Manufacturer ABB Ltd.
Product Series REF Protection Relay Series
Function Trip Circuit Supervision (TCS) — continuous coil integrity monitoring
Contact Configuration 1C1-AA (1 changeover contact, alarm output)
Mounting Style DIN Rail / Panel Mount
Auxiliary Supply Compatibility 24 VDC / 48 VDC / 110 VDC (confirm with datasheet for exact variant)
Compliance Standards IEC 60255, CE Marked, RoHS Directive
Country of Origin Germany (ABB global manufacturing standard)
Weight Approx. 200 g
Lead Time In-stock units: dispatched within 1–3 business days from Xiamen. Non-stock / project quantities: 5–15 business days subject to global sourcing confirmation. Expedited options available upon request.
Minimum Order Quantity 1 unit; volume pricing available for 5+ units

Total Cost of Ownership (TCO) Analysis

Procurement teams evaluating the EB143887SPER 1C1-AA often focus on unit price as the primary variable. That framing understates the true cost equation by a significant margin. Consider the following framework when building your TCO model:

Downtime Risk Elimination. A single undetected trip coil failure in a medium-voltage substation can result in a protection system that appears healthy but cannot respond to a fault. The resulting forced outage — including emergency repair labor, production loss, and potential equipment damage — routinely exceeds USD 50,000 per incident in process-intensive industries. The EB143887SPER 1C1-AA costs a fraction of that exposure. Deploying it is not a maintenance expense; it is a risk transfer instrument.

Maintenance Labor Reduction. Traditional trip circuit testing requires scheduled manual intervention — technicians performing periodic coil continuity checks, often under energized conditions. Continuous electronic supervision via the EB143887SPER 1C1-AA eliminates the need for that routine, reducing both labor hours and the safety exposure associated with live-panel work. Over a 5-year maintenance cycle, the labor savings alone typically justify the component cost several times over.

12-Month Warranty Coverage. Every unit supplied through siemensplc.com carries a 12-month warranty against manufacturing defects. This directly reduces your OPEX provisioning for spare-parts contingency. Rather than holding buffer stock to cover potential early failures, your maintenance budget can be allocated to planned replacement cycles — a shift from reactive to predictive expenditure that finance teams consistently value.

Third-Party Supplier CAPEX Advantage. OEM direct channels for ABB protection relays frequently carry list-price premiums of 20–40% above market, compounded by minimum order requirements and extended lead times tied to regional distribution agreements. Sourcing through siemensplc.com allows procurement managers to capture that margin differential immediately, reducing the capital outlay per unit while maintaining full product authenticity. For multi-site rollouts or annual maintenance contracts involving dozens of units, the aggregate CAPEX saving is material.

Inventory Carrying Cost. Our ability to dispatch in-stock units within 1–3 business days means you can operate with leaner on-site spare inventories. Reducing your safety stock from 5 units to 2 units per site, multiplied across a regional asset base, frees working capital without increasing operational risk.

Quality & Compliance Assurance

Every ABB EB143887SPER 1C1-AA unit dispatched from siemensplc.com is subject to a documented verification protocol before it leaves our facility:

  • 100% Genuine Product Commitment: We source exclusively from authorized ABB distribution channels and verified OEM surplus pipelines. No refurbished-as-new, no grey-market substitutions. Traceability documentation — including distributor invoices and manufacturer certificates — is available to qualified B2B buyers upon request.
  • Xiamen Customs Compliance: All export shipments are processed through Xiamen Customs with full commercial documentation: commercial invoice, packing list, certificate of origin, and HS code declaration. We maintain a clean compliance record with zero customs holds on record, which matters when your project timeline cannot absorb border delays.
  • Multi-Currency Payment Support: We accept T/T bank transfer (USD, EUR, CNY, HKD), PayPal, and major credit cards. For institutional buyers operating under purchase order workflows, we accommodate net-30 terms for established accounts. Currency flexibility removes friction from cross-border procurement and simplifies your accounts payable reconciliation.
  • Standards Compliance: CE Marked | IEC 60255 | RoHS Directive | ISO 9001 supply chain traceability

Strategic Sourcing from Xiamen

Xiamen is not an arbitrary logistics point — it is one of China’s five designated Special Economic Zones and home to one of the country’s most active international container ports. For industrial component exporters, this geography translates into concrete operational advantages:

  • Port Access & Transit Times: Xiamen Port handles direct container services to major hubs including Rotterdam, Hamburg, Los Angeles, Dubai, and Singapore. Air freight connections via Xiamen Gaoqi International Airport provide express options to virtually any destination within 48–72 hours.
  • Customs Infrastructure: The Xiamen Free Trade Zone offers streamlined export processing, reducing documentation turnaround and enabling same-day customs clearance for pre-approved shipment profiles. This is particularly relevant for urgent project deliveries where every day of transit delay carries a cost.
  • Supplier Ecosystem: Proximity to a dense network of authorized distributors and bonded warehouses for major automation brands — including ABB, Siemens, Schneider Electric, and Rockwell — means our sourcing team can consolidate multi-brand BOMs into a single shipment, reducing your freight cost and administrative overhead simultaneously.
  • Regional Coverage: From Xiamen, we serve procurement teams across Southeast Asia, the Middle East, Europe, and the Americas with consistent lead times and carrier options calibrated to your urgency and budget.

Contact Information

Our industrial sourcing team is available Monday through Saturday, 09:00–18:00 CST. For RFQs, BOM consolidation, or technical clarification on the EB143887SPER 1C1-AA, reach us through any of the following channels:

© 2026 siemensplc.com. All rights reserved.

Ready to quote

Send This Part Number to Sales

[email protected]
RFQ workflow

Confirmation Process

Quality workflow ->
01Model confirmation

We check the full part number, brand, series and visible nameplate information before quotation.

02Availability reply

Sales confirms stock path, condition option, quantity and realistic lead time for export dispatch.

03Packing & courier

DHL, FedEx, UPS or buyer courier arrangements can be reviewed with packing requirements.