Manufacturer: ABB
Product No.: SPAJ140C
Country of origin:Finland
Product Type: Overcurrent Protection Relays
Barcode: 8537101190
Payment: T/T, Western Union
Weight: 3500g
Dimensions: 142 mm x 162 mm x 250 mm
Shipping port: Xiamen
Warranty: 12 months
Processing secondary line currents to secure distribution assets, the ABB SPAJ-140-C (SPAJ140C) operates as a micro-processor based protection relay designed for selective short-circuit and earth-fault detection. This secondary protective device monitors three-phase overcurrent conditions alongside a non-directional residual ground-fault loop to safeguard radial feeders, industrial motors, and power transformers against thermal destruction or phase unbalance. Operating as an autonomous or networked intelligent electronic device (IED) within substation switchgear arrays, the SPAJ 140 C (SPAJ140C) transfers event records and diagnostic metrics via an asynchronous serial link, minimizing power grid down-time through rapid fault isolation.
| Technical Parameter Category | Engineered Specification Value |
|---|---|
| Manufacturer | ABB |
| Model Designation | SPAJ 140 C (SPAJ140C) |
| Product ID Base | 1MRS 750629-EN |
| Core Sub-module Included | SPCJ 4D29 (Overcurrent and Earth-Fault Module) |
| Rated Phase Current Input (In) | 1 A or 5 A configurable by hardware terminals |
| Rated Neutral Current Input (In) | 1 A or 5 A configurable by hardware terminals |
| Rated Frequency (fn) | 50 Hz or 60 Hz selectable via setting configurations |
| Thermal Withstand Capacity (Continuous) | 4 A at 1 A input, 20 A at 5 A input |
| Thermal Withstand Capacity (For 1 s) | 100 A at 1 A input, 500 A at 5 A input |
| Dynamic Current Withstand (Half-wave value) | 250 A at 1 A input, 1250 A at 5 A input |
| Input Burden / Impedance | <100 mOhm (1 A circuits), <20 mOhm (5 A circuits) |
| Auxiliary Voltage Supply Option 1 (Uaux) | 80...265 V AC or DC |
| Auxiliary Voltage Supply Option 2 (Uaux) | 18...80 V DC |
| Power Consumption (Quiescent / Operational) | ~4 W / ~7 W |
| Phase Overcurrent Low-Set Setting Range (I>) | 0.5...2.5 x In (Definite or IDMT) |
| Phase Overcurrent High-Set Setting Range (I>>) | 0.5...40.0 x In or infinity (Definite time) |
| Earth-Fault Low-Set Setting Range (Io>) | 0.1...0.8 x In (Definite or IDMT) |
| Earth-Fault High-Set Setting Range (Io>>) | 0.1...10.0 x In or infinity (Definite time) |
| Serial Interface Communication Link | Rear panel plastic or glass fiber-optic ring using SPA bus protocol |
| Dielectric Test Insulation Voltage | 2.0 kV, 50 Hz, 1 minute (IEC 60255-5) |
| Impulse Testing Threshold | 5 kV, 1.2/50 us pulse, 0.5 Joules (IEC 60255-5) |
| Ambient Operational Temperature Limits | -10...+55 Celsius |
| Enclosure Sealing Rating | IP54 flush panel-mounted format |
| Product Net Mass | ~3.5 kg |
| Front Bezel Panel Dimensions | 142 mm x 162 mm |
| Enclosure Case Intrusive Depth | 250 mm |
| Terminal Allocation Index | Circuit Line Function / Signal Mapping |
|---|---|
| 1 - 2 | Phase L1 Current Input (5 A configuration mapping) |
| 1 - 3 | Phase L1 Current Input (1 A configuration mapping) |
| 4 - 5 | Phase L2 Current Input (5 A configuration mapping) |
| 4 - 6 | Phase L2 Current Input (1 A configuration mapping) |
| 7 - 8 | Phase L3 Current Input (5 A configuration mapping) |
| 7 - 9 | Phase L3 Current Input (1 A configuration mapping) |
| 25 - 26 | Residual Earth-Fault Current Input Io (5 A mapping configuration) |
| 25 - 27 | Residual Earth-Fault Current Input Io (1 A mapping configuration) |
| 10 - 11 | External Binary Control Interface (Optically Isolated Input Channel) |
| 61 - 62 | Auxiliary System Supply Power Input Contacts (Uaux) |
| 65 - 66 | Internal Relay Failure (IRF) Watchdog Output Contact Loop |
| 68 - 69 | Main Circuit Breaker Primary Heavy Tripping Output Relay Matrix |
| 70 - 71 - 72 | Signalling Output Contact Array (Configurable for Start / Trip alarms) |
| 74 - 75 | Secondary Tripping Contact Output Relay Matrix |
The SPAJ 140 C protective assembly incorporates the removable SPCJ 4D29 internal conversion card. It can be slotted into standard size dim100
Global Express Shipping
Returns & Warranty
Global Express Shipping
Returns & Warranty
Orders are processed and delivered Monday-Friday (excluding public holidays).
For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .
| Color pattern |
White
Greyish White
|
| Country of origin |
Finland
|
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