ABB SPAJ 142C Terminal Module | Replacement, Equivalent & Selection Guide
The ABB SPAJ 142C is a dedicated terminal module designed for use within ABB’s SPAJ relay protection systems. It provides secure, organized wiring termination for protection relays in medium-voltage switchgear, substations, and industrial power distribution panels. This page serves as a comprehensive selection, replacement, and compatibility reference for engineers and procurement specialists.
Technical Specifications
- Manufacturer: ABB
- Part Number / SKU: SPAJ 142C
- Type: Terminal Module (Relay Accessory)
- Compatible Relay Series: ABB SPAJ, SPAM, SPAS protection relay families
- Mounting: DIN rail / panel mount (per relay housing standard)
- Connection Type: Screw-type terminal blocks
- Rated Voltage: Per relay system specification (typically 100–250 V AC/DC auxiliary)
- Operating Temperature: -10°C to +55°C
- Standards Compliance: IEC 60255 series
- Weight: ~10 g (module only)
- Country of Origin: Finland / EU (ABB production)
Compatible Replacement & Equivalent Models
When the ABB SPAJ 142C is unavailable or discontinued, the following models may serve as functional equivalents or direct replacements depending on your relay configuration:
- ABB SPAJ 141C — Earlier revision terminal module; verify pin-out compatibility before substitution
- ABB SPAJ 143C — Later revision with extended terminal capacity; backward-compatible in most installations
- ABB SPAM 150C Terminal Module — Compatible with SPAM-series relays; cross-check wiring diagram
- ABB SPAS 120 Terminal Block — Suitable for SPAS-series protection relays
- Generic DIN Terminal Module (IEC 60255-compliant) — Third-party equivalents available; confirm mechanical dimensions and terminal pitch
Note: Always verify relay model, firmware version, and wiring diagram before substituting terminal modules. Contact Konmask technical support for cross-reference assistance.
Why Choose the Original Model
- Guaranteed Compatibility: Factory-matched to ABB SPAJ relay series — no adaptation required
- Certified Quality: Manufactured to IEC 60255 and ABB internal quality standards
- Long-Term Support: ABB provides documentation, spare parts, and firmware support for SPAJ-series components
- Reduced Commissioning Risk: Original modules eliminate wiring adaptation errors common with third-party substitutes
- Traceability: Full batch traceability for critical protection applications in utilities and industrial plants
Typical Applications
- Medium-voltage feeder and transformer protection panels
- Substation automation and protection relay cabinets
- Industrial power distribution switchgear (6 kV – 35 kV)
- Generator protection systems
- Motor protection relay installations
- Retrofit and upgrade projects for legacy ABB SPAJ relay systems
System Compatibility
| Relay Model | SPAJ 142C Compatible | Notes |
|---|---|---|
| ABB SPAJ 140C | ✅ Yes | Primary application |
| ABB SPAJ 141C | ✅ Yes | Verify terminal count |
| ABB SPAJ 143C | ⚠️ Partial | Check wiring diagram |
| ABB SPAM 150C | ⚠️ Partial | Mechanical fit check required |
| ABB SPAS 120 | ❌ No | Different terminal series |
| Third-party IEC relays | ❌ Not recommended | Use generic DIN module instead |
Selection Guide
Use the following criteria to confirm the correct terminal module for your application:
- Step 1 — Identify your relay model: Locate the relay nameplate (e.g., SPAJ 140C, SPAJ 141C). The terminal module must match the relay series.
- Step 2 — Check terminal count: Confirm the number of I/O terminals required by your protection scheme (binary inputs, trip outputs, signal outputs).
- Step 3 — Verify auxiliary voltage: Ensure the terminal module is rated for your panel’s auxiliary supply (110 V DC, 220 V DC, or 110 V AC).
- Step 4 — Review wiring diagram: Cross-reference ABB relay wiring diagram (available on request) before ordering.
- Step 5 — Confirm availability: Contact Konmask for stock status, lead time, and alternative sourcing if the original part is on allocation.
Quality Assurance & Sourcing
- All ABB modules supplied by Konmask are sourced from authorized distributors or verified surplus channels
- Each unit undergoes visual inspection and functional verification prior to dispatch
- Batch documentation and certificates of conformity available upon request
- Packaging: anti-static bag + foam-lined carton for safe international shipping
- Warranty: 12 months from date of shipment (subject to correct installation and application)
How to Order
- SKU: SPAJ 142C
- Minimum Order Quantity: 1 unit
- Lead Time: In-stock orders ship within 1–3 business days; sourced orders 7–21 days
- Payment: T/T, PayPal, credit card (via Shopify checkout)
- Shipping: DHL / FedEx / UPS international express; sea freight available for bulk orders
- Custom Quotation: Email support@konmask.com or call +0086 19859288691 for volume pricing
Replacement & Compatibility FAQ
Q: Can I use SPAJ 141C as a direct replacement for SPAJ 142C?
A: In most cases yes, but verify the terminal pin-out and screw torque specifications match your relay wiring diagram before installation.
Q: Is the SPAJ 142C still in production?
A: ABB has transitioned some SPAJ-series components to end-of-life status. Konmask maintains stock of both new and refurbished units. Contact us for current availability.
Q: Can I use a generic terminal module instead of the ABB original?
A: Generic IEC-compliant modules may be used in non-critical auxiliary circuits, but are not recommended for primary protection relay terminations due to certification and traceability requirements.
Q: Do you provide installation documentation?
A: Yes. ABB relay wiring diagrams and terminal module installation guides are available upon request with every order.
Q: What is the return policy?
A: Unused items in original condition may be returned within 30 days. Custom-sourced or special-order items are non-returnable.
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Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
