ALSTOM N895313512X Digital Output Module

Overview

The N895313512X connects to the host relay via an expansion bus or serial interface, appearing as additional output channels to the relay's logic. Each output is a fully isolated electromechanical relay with high breaking capacity, suitable for direct control of circuit breaker trip coils, alarms, and indicators. The module includes LED status indicators for each output and can be mounted on DIN rail or in a relay case. Its robust design ensures reliable operation in harsh substation environments.

Key Features

• Number of Outputs: 6 form-C (SPDT) relay outputs.

• Contact Ratings: 8 A @ 250 VAC / 30 VDC (resistive), 0.2 A @ 125 VDC (inductive).

• Isolation: 2.5 kV between contacts and logic.

• Output Modes: Configurable as latching or non-latching, failsafe or non-failsafe.

• LED Indication: Individual status LEDs for each output.

• Communication: Via expansion port to host relay (proprietary).

• Power Supply: Derived from host relay or external 24 VDC.

• Operating Temperature: -25°C to +70°C.

Technical Specifications

• Output Channels: 6.

• Contact Material: Silver alloy, gold flashed.

• Maximum Switching Voltage: 250 VAC / 125 VDC.

• Maximum Switching Current: 8 A AC / 5 A DC.

• Mechanical Life: > 10^7 operations.

• Electrical Life: > 10^5 operations at rated load.

• Response Time: < 10 ms from command to contact change.

• Dimensions: 45 x 110 x 100 mm.

• Mounting: DIN rail (EN 50022).

• Certifications: CE, UL pending.

Applications

The N895313512X is used to extend output capability in a variety of protection and control applications:

• Adding extra trip outputs for dual coil circuit breakers.

• Driving multiple alarm indicators (lights, horns).

• Containing separate lockout functions.

• Providing outputs for remote SCADA indications.

• Interfacing with auxiliary relays and PLCs.

Configuration and Integration

The module is automatically detected by the host relay when connected. Using the relay's configuration software, each output can be assigned to specific protection elements, logic outputs, or user-defined conditions. The outputs can be set to energize on alarm, trip, or any programmable condition. The module's compact size allows it to be added to existing panels with minimal space impact. The outputs are equipped with surge protection for reliable operation in electromagnetic environments.

In summary, the ALSTOM N895313512X digital output module provides a simple and reliable way to expand the output capabilities of protection systems, enabling more comprehensive control and annunciation.