Product Details
The ABB SPER1C1-AAJ, also cataloged as the SPER1C1-AAJ Trip Circuit Supervision Relay, operates as a dedicated hardware component for continuous electrical loop integrity monitoring within COMBIFLEX protection and control schemes. Configured to detect open circuits, supply voltage dropouts, and wiring failures across circuit-breaker and disconnector control circuits, the unit provides real-time contact closure outputs and front-panel optical status indications upon loop disruption.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | SPER1C1-AAJ |
| Brand | ABB |
| Origin | Sweden |
| Product Type | Trip Circuit Supervision Relays |
| Series | COMBIFLEX System |
| Supply Voltage Range | 40 to 265 VDC |
| Operate Time | Preset delay to prevent false alarms during normal breaker operations |
| Visual Indication | Front-panel LED relay operation indicator |
| Weight | Standard COMBIFLEX module weight (approx. 0.25 kg) |
| Dimensions | Single-seat COMBIFLEX plug-in module size (4U x 2C format) |
| Operating Temp | -10 to +55 deg C |
| Power Consumption | Internal auxiliary burden dependent on supply voltage level |
Firmware Flash Compatibility and Deterministic Network Execution
The module integrates solid-state timer circuitry designed to isolate brief trip-voltage dips caused by normal breaker closing sequences from genuine trip circuit interruptions. Operating without internal programmable software, the hardware utilizes analog delay networks to guarantee deterministic contact drop-out times under 200 ms during genuine wire-break events. Dedicated logic isolation circuits prevent high-voltage surge transients present in DC auxiliary buses from transferring false fault flags back to central station monitoring interfaces.
Frequently Asked Questions
Q: How does the preset operate time function during circuit breaker operation?
A: The preset operate time introduces a calibrated time delay that prevents false alarm contact actuation during temporary voltage dips or contact transfers occurring during normal breaker opening and closing operations.
Q: Can the SPER1C1-AAJ monitor the trip circuit when the circuit breaker is in both open and closed positions?
A: Yes, when wired across the trip coil and auxiliary contacts according to standard COMBIFLEX schemes, the relay maintains continuous current injection to supervise loop integrity regardless of breaker breaker position.
Field Installation Guidelines
- Module Mounting: Insert the SPER1C1-AAJ plug-in module firmly into the designated COMBIFLEX mounting base seat until the terminal pins fully engage the socket connectors. Fasten locking screws to secure mechanical installation.
- DC Supply Connection: Connect the auxiliary DC supervision voltage within the specified 40 to 265 VDC range. Ensure proper polarity alignment at the socket terminal connections to prevent improper LED bias.
- Wire Separation and Shielding: Route DC supervision loops in shielded control cables separate from high-current AC power conductors to prevent capacitive noise coupling onto the trip coil circuit.
- Grounding Rules: Terminate the COMBIFLEX subrack frame directly to the cabinet earth bus bar using a low-impedance conductor. Ensure all cable shields are grounded at a single point at the panel entry.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
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