Siemens Reyrolle 7PJ13 Trip Circuit Supervision Relay

Siemens Reyrolle 7PJ13 Trip Circuit Supervision Relay Suppliers,Exporters in India

ARP IMPEX supplies and exports Siemens Reyrolle 7PJ13 Trip Circuit Supervision Relays for low-voltage and medium-voltage switchgear, protection panels, substations and circuit-breaker control systems. Buyers can share the complete Siemens article number, auxiliary voltage, trip-circuit voltage and quantity for price and export availability.

The Siemens Reyrolle 7PJ13 continuously checks the condition of a circuit breaker’s trip coil, auxiliary supply and associated wiring. It gives an alarm when the trip circuit loses its supply, develops an open connection or cannot operate correctly when a trip command is issued.

A protection relay can detect an electrical fault, but the circuit breaker will not open if its trip coil or control wiring has failed. The 7PJ13 helps identify this problem before the breaker is required to clear a fault. It is commonly installed in feeder protection panels, transformer bays, generator panels, motor protection systems and other switchgear circuits where dependable tripping is important.

The relay monitors the trip circuit while the circuit breaker is open, closed or in a latched-trip condition. A green indication shows a healthy circuit, while a red indication identifies a trip-circuit fault. Alarm contacts can also send the condition to an annunciator, numerical protection relay, RTU or remote SCADA system.

Buyers looking for a Siemens Reyrolle 7PJ13 supplier in India, a trip circuit supervision relay exporter, or a circuit-breaker trip coil monitoring relay can send the complete ordering code for quotation.

Technical Specifications

• Brand: Siemens
• Product family: Reyrolle
• Series: 7PJ13
• Product type: Trip circuit supervision relay
• ANSI function: 74TCS
• Main duty: Supervision of circuit-breaker trip coil, trip supply and control wiring
• Supervision conditions: Circuit breaker open, circuit breaker closed and latched-trip condition
• Number of binary inputs: Two
• Supervision current: Approximately 0.7 mA to 1.5 mA
• Auxiliary supply options: AC/DC 24–240 V or AC/DC 110–240 V, depending on the model
• Supervised voltage range: DC 18–265 V or AC/DC 40–240 V, depending on the article number
• Output options: Two changeover contacts or two make plus two break contacts
• Contact reset: Self-reset
• Status indication: Auxiliary-power LED and dual-colour trip-circuit status LED
• Additional indication: Binary-input LEDs on applicable versions
• Healthy indication: Green LED
• Fault indication: Red LED
• Maximum burden: Up to 4 W or 9 VA
• Housing: Compact, non-withdrawable moulded case
• Mounting: Flush panel mounting
• Approximate dimensions: 106 × 58 × 118 mm
• Panel cut-out: Approximately 92 × 45 mm
• Rear connection: Pluggable terminals
• Degree of protection: IP54 at the front and IP20 at the rear
• Applicable standards: IEC/EN 60255 series
• Optional construction: Conformal-coated PCB versions are available for selected ordering codes

The auxiliary-voltage range, supervision-voltage range, LED arrangement and output-contact configuration differ between 7PJ13 article numbers. The complete Siemens MLFB should be checked before ordering or replacing an existing relay.

Available Siemens Reyrolle 7PJ13 Versions

The 7PJ13 range includes versions for different trip-circuit voltage and output-contact requirements.

Common ordering options include:

• 7PJ1321-5AA21-0AA0: Universal AC/DC 24–240 V auxiliary supply with two changeover output contacts
• 7PJ1321-4AA21-0AA0: AC/DC 110–240 V auxiliary supply with two changeover output contacts
• 7PJ1321-5CC02-0AA0: Universal AC/DC 24–240 V auxiliary supply with two make and two break contacts

Applicable versions also provide binary-input status indication on the relay fascia. Buyers should confirm the required trip-circuit voltage, output arrangement and existing panel wiring before selecting a model.

What are the 7PJ13 Monitors?

The Siemens 7PJ13 monitors the trip circuit from the positive supply through the circuit-breaker auxiliary contacts, trip coil and return wiring.

It can identify:

• Loss of trip-circuit auxiliary supply
• Open circuit in the trip-coil wiring
• Disconnected trip-coil connections
• Failure in the supervised control circuit
• A trip command that does not result in breaker operation
• An unhealthy trip circuit while the breaker is open
• An unhealthy trip circuit while the breaker is closed
• Faults remaining after a latched trip operation

The relay uses a small supervision current, so it can check circuit continuity without operating the circuit-breaker trip coil during normal monitoring.

Features

• Continuously supervises the complete circuit-breaker trip path
• Monitors the circuit while the breaker is open or closed
• Detects loss of the trip-circuit supply
• Detects open wiring and disconnected trip-coil circuits
• Provides local green and red status indication
• Alarm contacts allow remote fault indication
• Wide auxiliary-supply options suit common substation voltages
• Self-reset operation restores the healthy indication after the fault is cleared
• Compact flush-mounted design saves space in protection panels
• Pluggable rear terminals simplify installation and replacement
• Multiple output-contact arrangements are available
• Selected versions show individual binary-input status
• Low supervision current avoids unwanted trip-coil operation
• Low power consumption limits the panel burden
• Optional conformal coating suits humid, dusty or corrosive environments
• IEC 60255 compliance supports utility and industrial protection-panel requirements

The 7PJ13 is intended for continuous trip-circuit monitoring rather than primary fault protection. It works alongside feeder, transformer, motor or generator protection relays to confirm that the circuit breaker remains ready to trip when required.

Applications

Siemens Reyrolle 7PJ13 Trip Circuit Supervision Relays are commonly used in:

• Medium-voltage switchgear panels
• Low-voltage circuit-breaker control panels
• Incoming and outgoing feeder panels
• Transformer protection panels
• Generator protection systems
• Motor protection panels
• Bus-coupler and bus-section panels
• Utility distribution substations
• Industrial substations
• Power-generation plants
• Solar and wind power substations
• Oil and gas electrical systems
• Refineries and petrochemical plants
• Steel and cement plant switchgear
• Mining and mineral-processing facilities
• Water and wastewater plants
• Railway and metro power systems
• Data-centre electrical distribution panels
• Circuit-breaker retrofit projects
• Replacement of older trip circuit supervision relays

The relay is suitable for projects requiring a trip coil supervision relay for MV switchgear, a 74TCS relay for substation panels or a circuit-breaker trip circuit monitoring relay with remote alarm contacts.

Selecting the Correct Siemens 7PJ13 Relay

The 7PJ13 should not be selected only by the series name. The relay must match the trip-circuit voltage, auxiliary supply and output-contact arrangement used in the panel.

For accurate selection and quotation, provide:

• Complete Siemens article number
• Circuit-breaker make and model
• Trip-coil voltage
• Trip-circuit auxiliary voltage
• AC or DC supply
• Required output-contact arrangement
• Breaker auxiliary-contact arrangement
• Local and remote alarm requirements
• Existing panel wiring diagram
• Conformal-coating requirement
• Required quantity
• Delivery country

For replacement enquiries, share a clear photograph of the existing relay nameplate and terminal diagram. A relay with the same physical dimensions may still have a different voltage range or output-contact arrangement.

Siemens Reyrolle 7PJ13 Supplier and Exporter in India

ARP IMPEX is an independent supplier and exporter of Siemens Reyrolle protection and supervision relays in India. We supply Reyrolle 7PJ13 Trip Circuit Supervision Relays for switchgear manufacturers, protection-panel builders, EPC contractors, utilities and industrial maintenance companies.

We handle enquiries for:

• Siemens Reyrolle 7PJ13 trip circuit supervision relays
• ANSI 74TCS circuit-breaker supervision relays
• Trip-coil monitoring relays for MV switchgear
• Trip circuit failure alarm relays
• Substation protection-panel supervision relays
• Siemens 7PJ13 replacement requirements
• Reyrolle auxiliary and supervision relays for export

The Siemens 7PJ13 price depends on the complete article number, auxiliary-voltage range and output-contact arrangement. Quotations should therefore be requested against the exact MLFB rather than only the description “7PJ13 relay.

For price and export availability, send the complete Siemens part number, trip-circuit voltage, quantity and destination country.