ARTECHE BJ-8RP

Product Name

8PDT Trip & Lockout Auxiliary Relay

Product Overview

The Arteche BJ-8RP is an 8-contact latching auxiliary relay designed for trip and lockout control in power systems. It features high short-circuit withstand capacity and reliable mechanical latching, engineered for high-reliability applications such as substations.

Category:
Description

Technical Specifications

8 changeover contacts (8PDT / Form C); contact material AgNi alloy; standard coil voltages: 24/48/72/110/125/220 VDC, 63.5/110/127/230 VAC (50/60 Hz); continuous current carrying capacity 10 A; short-time current withstand: 30 A for 1 s, 80 A for 200 ms, 200 A for 10 ms; dielectric strength 2 kV / 50 Hz / 1 min; impulse withstand voltage 5 kV (1.2/50 µs).

Functional Features

Mechanical latching for state retention; manual reset function; high short-circuit current tolerance; low-power coil design; front-panel wiring and status indication; compliant with IEC 60255, IEC 61000 and ANSI C37.90 standards.

Application Scenarios

High-voltage substation circuit breaker control, power plant protection circuits, industrial power distribution systems, rail transit signal control, renewable energy plant protection systems.

Performance Parameters

Operating time 3–20 ms; contact resistance ≤ 30 mΩ; electrical endurance 100,000 breaking operations; mechanical endurance in the millions of operations.

Material Composition

Transparent flame-retardant PC cover, AgNi alloy contacts, copper conductive parts, engineering plastic bobbin, enameled copper wire coil.

Structural Features

Plug-in design for use with matching socket base; front panel with manual operating button and status indicator; clearly arranged 8-channel contact terminals with generous wiring space.

Working Principle

Energizing the coil generates electromagnetic force to drive the armature, switch the contacts and lock the state via mechanical latch mechanism. The state remains after coil de-energization and requires manual reset or reverse coil drive to reset, providing fault lockout functionality.

Installation Requirements

DIN-rail or panel mounting with matching J-type socket; apply correct tightening torque to terminals; install surge suppression elements in control circuit; ensure reliable protective earth connection.

Usage Notes

Do not exceed contact voltage and current ratings; perform manual reset only when power is off; inspect contact oxidation periodically; install shielding measures in strong electromagnetic environments.

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