SPER1C1 ABB COMBIFLEX Trip Circuit Supervision Relay 40-265 VDC
Manufacturer: ABB
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Part Number: SPER1C1
Condition：New with Original Package
Product Type: Protection Relays
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Country of Origin: Sweden
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
ABB SPER1C1 Trip Circuit Supervision Relay
The ABB SPER1C1, also cataloged as the SPER1C1 Trip Circuit Supervision Relay, operates as a dedicated hardware component for continuous electrical loop integrity monitoring within ABB COMBIFLEX protection and control systems. Engineers install this module into COMBIFLEX mounting bases to supervise circuit breaker trip paths, disconnector control loops, and signaling circuits across auxiliary DC rails. The internal sensing network evaluates loop continuity in both energized and de-energized breaker states without causing premature tripping.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | SPER1C1 |
| Brand | ABB |
| Origin | Sweden / Germany |
| Weight | Standard COMBIFLEX relay mass |
| Dimensions | Standard COMBIFLEX module footprint |
| Operating Temp | -25 deg C to +55 deg C |
| Power Consumption | Standard loop draw (40-265 VDC supply) |
| System Compatibility | ABB COMBIFLEX protection and control systems |
| Supply Voltage Range | 40 - 265 VDC |
| Operate Time | Preset delay to avoid false alarms |
| Indication | LED indicator + output relay signal |
| Fault Detection | Bad contact, contact welding, auxiliary voltage failure |
| Mounting | COMBIFLEX base mounting |
| Protection Class | IP20 |
Backplane Bus Communication Velocity & Deterministic Network Scaling
The module integrates specialized signal processing circuits that maintain channel-to-channel isolation while interfacing with rack supervision networks. Built-in timing circuits enforce a preset operate delay that suppresses transient voltage dips during circuit breaker state transitions, eliminating false alarm trips. Internal galvanic isolation guards against common-mode noise propagation, and firmware flash compatibility mechanisms ensure seamless configuration matching when integrated into COMBIFLEX protection lineups.
Frequently Asked Questions
Q: What mechanisms prevent false alarm indications during normal circuit breaker trip operations?
A: The relay incorporates a preset operate delay circuit that ignores temporary voltage drops and contact switching transients during breaker movement.
Q: How does the module signal a detected fault condition to external supervisory systems?
A: Hardware logic activates the front-panel red LED indicator and simultaneously switches the isolated output contact relay to energize remote alarm circuits.
Q: What specific electrical failure conditions trigger an alarm output on the SPER1C1?
A: The internal monitoring bridge detects open control loops, high resistance from bad contacts, contact welding, and loss of auxiliary DC supply voltage.
Field Installation Guidelines
Technicians must seat the SPER1C1 module firmly into the COMBIFLEX base socket until the mounting clips lock completely into position. Verify correct polarity across the 40-265 VDC supply terminals before applying operating voltage to the supervisory loop. Route supervision control wiring in separate cable channels, away from high-current AC power cables to minimize electromagnetic interference. Secure all wiring screen shields to the central enclosure grounding bar using low-impedance grounding clamps prior to placing the protection system into service.