Beckwith Pride M‑0296b 3‑Phase Programmable Relay

The Beckwith Pride M‑0296b is a 3‑phase programmable relay from the renowned Pride series, designed for comprehensive protection of feeders, motors, and transformers in industrial power systems. This relay combines overcurrent, over/undervoltage, and over/underfrequency protection in a single, compact unit, with programmable settings that allow adaptation to a wide range of applications. Its solid‑state circuitry ensures fast and accurate response to fault conditions, minimizing downtime and equipment damage.

The M‑0296b features a user‑friendly interface with LED indicators and front‑panel controls for local setting adjustments. It is housed in a rugged enclosure suitable for panel or DIN‑rail mounting, and operates reliably in harsh environments.

Key Features

• Three‑phase voltage and current monitoring

• Protection functions: overcurrent (50/51), overvoltage (59), undervoltage (27), overfrequency (81O), underfrequency (81U), and negative‑sequence (46)

• Programmable pickup thresholds and time delays for each function

• Multiple time‑overcurrent curves (IEC and IEEE)

• Independent output relays (2 x SPDT) for trip and alarm

• Front‑panel LED status indicators and reset button

• Wide auxiliary supply range: 24–250 VDC or 120/240 VAC

• Conformal‑coated PCB for moisture and dust resistance

Technical Specifications

Current inputs: 1A or 5A CT secondary; voltage inputs: 100–480 VAC direct or via PT; frequency range: 45–65 Hz; accuracy: ±1% for current, ±0.5% for voltage; output relay contacts: 5 A at 250 VAC; operating temperature: -20°C to +65°C; power consumption: < 10 VA.

Applications

This relay is widely used in motor control centres, distribution panels, generator protection, and transformer feeders. It is particularly suitable for industrial plants, commercial buildings, and renewable energy installations where compact and cost‑effective protection is required.

Installation and Programming

Mount the relay on a standard 35 mm DIN rail or using panel screws. Connect the current and voltage sensing leads, and wire the output relays to the breaker trip coil and alarm circuit. Program the desired settings using the front‑panel potentiometers and DIP switches, or optionally via a communication port (if equipped). A test function is provided for commissioning.

Reliability and Maintenance

The M‑0296b is built with high‑reliability components and includes surge suppression and reverse‑polarity protection. Its solid‑state design eliminates mechanical wear, ensuring long service life. Periodic inspection and functional testing are recommended to maintain accuracy.

Why Choose the Pride M‑0296b?

This relay offers a perfect balance between protection functionality and simplicity, backed by Beckwith Electric’s reputation for quality. Its flexible programming and wide power supply range make it a versatile choice for both new and retrofit projects. The Pride series is known for its durability and ease of use, making the M‑0296b a trusted solution for engineers worldwide.

In summary, the Beckwith Pride M‑0296b 3‑phase programmable relay delivers reliable and adaptable protection, enhancing the safety and efficiency of industrial power systems.