QNNA1 Type AC Immunized Q-Series Twin Neutral Line Relay

The QNNA1 Relay is a twin DC neutral, AC immune tractive armature relay designed for high-performance railway signaling applications. As part of the BR 930A Series, it ensures reliable switching with high immunity to AC interference (up to 1000V AC, 50Hz). The relay consists of two electrically independent relay units mounted side-by-side, allowing seamless operation in railway interlocking and safety circuits. With a nominal rated voltage of 50V DC, multiple contact arrangements (6F 2B, 4F 4B, etc.), and compliance with EN 55014 EMC standards, the QNNA1 relay is built for robust and efficient signaling applications.

Key Features:

● Type: AC Immunized Twin DC Neutral Relay

● Series: BR 930A Series (Q-Series)

● Switching Time: Fast response with high AC immunity

● Response Time: Optimized for railway signaling requirements

● Power Consumption: Standardized for low energy usage

● Contact Arrangements: 6F 2B, 4F 4B, 4F 2B, 2F 2B

● Nominal Voltage: 50V DC

● AC Immunity: Up to 1000V AC, 50Hz

● Construction: Two independent relays mounted on a single base

● Compliance: EN 55014 EMC standard

It's Uses:

● Railway signaling and interlocking systems

● Track circuits for train detection and safety

● Relay-based control applications in railway infrastructure

● Fail-safe operations in power and signal routing

● High-reliability switching in railway automation