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SIEMENS 7PA2632-1AA00-1 Protection Relay

SIEMENS 7PA2632-1AA00-1 Protection Relay

SIEMENS 7PA2632-1AA00-1 Protection Relay

  • Item NO.:

    7PA2632-1AA00-1
  • Market Price:

    $750
  • Product Origin:

    Germany
  • Color:

    NEW
  • Product weight:

    0.01KG
  • Lead Time:

    In stock

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                                                                                                                                                                                                                                                                                                •  
                                                                                                                                                                                                                                                                                                • SIEMENS 7PA2632-1AA00-1 Protection Relay

                                                                                                                                                                                                                                                                                                  The Siemens 7PA2632-1AA00-1 is a high-speed tripping relay (auxiliary protection relay) used in electrical protection and substation control systems.


                                                                                                                                                                                                                                                                                                  Product Information

                                                                                                                                                                                                                                                                                                  • Brand: Siemens
                                                                                                                                                                                                                                                                                                  • Part Number: 7PA2632-1AA00-1
                                                                                                                                                                                                                                                                                                  • Series: 7PA26 Monostable Relay family
                                                                                                                                                                                                                                                                                                  • Type: Tripping / Auxiliary Protection Relay
                                                                                                                                                                                                                                                                                                  • Function: Fast switching (trip signal transfer) in protection circuits
                                                                                                                                                                                                                                                                                                  • Contacts: 8 changeover contacts
                                                                                                                                                                                                                                                                                                  • Coil voltage: 110–125 V DC
                                                                                                                                                                                                                                                                                                  • Operating time: ~10 ms fast tripping response
                                                                                                                                                                                                                                                                                                  • Mounting: With socket base (7XP9010-3) for panel installation

                                                                                                                                                                                                                                                                                                  What it actually is

                                                                                                                                                                                                                                                                                                  This is not a PLC or electronic module.

                                                                                                                                                                                                                                                                                                  It is an electromechanical protection relay, used to:

                                                                                                                                                                                                                                                                                                  • Receive trip signals from protection relays (like REF/7SR series)
                                                                                                                                                                                                                                                                                                  • Quickly switch multiple output contacts simultaneously
                                                                                                                                                                                                                                                                                                  • Activate circuit breakers or alarm circuits
                                                                                                                                                                                                                                                                                                  • Provide signal amplification (low control → multiple outputs)

                                                                                                                                                                                                                                                                                                  System Role (Simple)

                                                                                                                                                                                                                                                                                                  Protection relay (IED like ABB REF615 / Siemens 7SR)
                                                                                                                                                                                                                                                                                                  → sends TRIP signal (DC 110V)
                                                                                                                                                                                                                                                                                                  7PA2632 tripping relay
                                                                                                                                                                                                                                                                                                  → multiple contacts switch in parallel
                                                                                                                                                                                                                                                                                                  → circuit breaker opens / alarms activate

                                                                                                                                                                                                                                                                                                  So it acts like a “signal multiplier + fast switching interface”.


                                                                                                                                                                                                                                                                                                  Key Features

                                                                                                                                                                                                                                                                                                  • Very fast switching (~10 ms response)
                                                                                                                                                                                                                                                                                                  • 8 independent changeover contacts
                                                                                                                                                                                                                                                                                                  • Designed for protection and tripping circuits
                                                                                                                                                                                                                                                                                                  • Works with substation DC control systems
                                                                                                                                                                                                                                                                                                  • High reliability for fault conditions
                                                                                                                                                                                                                                                                                                  • Socket-mounted modular design

                                                                                                                                                                                                                                                                                                  Typical Applications

                                                                                                                                                                                                                                                                                                  • High-voltage substations
                                                                                                                                                                                                                                                                                                  • Circuit breaker tripping circuits
                                                                                                                                                                                                                                                                                                  • Protection relay output expansion
                                                                                                                                                                                                                                                                                                  • Alarm and interlocking systems
                                                                                                                                                                                                                                                                                                  • Power transmission and distribution systems

                                                                                                                                                                                                                                                                                                  Important Notes

                                                                                                                                                                                                                                                                                                  • Not a PLC ❌
                                                                                                                                                                                                                                                                                                  • Not a digital I/O module ❌
                                                                                                                                                                                                                                                                                                  • Not a communication device ❌
                                                                                                                                                                                                                                                                                                  • It is a high-speed auxiliary tripping relay
                                                                                                                                                                                                                                                                                                  • Works together with protection relays (REF / SIPROTEC / etc.)

                                                                                                                                                                                                                                                                                                  Precautions

                                                                                                                                                                                                                                                                                                  • Coil requires stable DC control supply (110/125V DC)
                                                                                                                                                                                                                                                                                                  • Must be used in protection-grade circuits
                                                                                                                                                                                                                                                                                                  • Incorrect wiring may cause false tripping or failure to trip
                                                                                                                                                                                                                                                                                                  • Not suitable for general industrial automation logic
                                                                                                                                                                                                                                                                                                  • Installation must follow substation protection design rules

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