Description

Megger MS2A 115 Circuit Breaker Relay Test Set

The Megger MS2A 115 is a versatile and high-precision test set designed for the accurate testing and commissioning of circuit breakers and protective relays. Built for reliability and ease of use, this test set ensures that electrical protection systems perform optimally and safely.

Equipped with robust measurement capabilities, the MS2A 115 supports primary and secondary injection tests, allowing technicians to simulate real operating conditions and verify the correct operation of relays and circuit breakers. Its intuitive interface and clear readouts make testing straightforward, reducing setup time and minimizing errors.

Designed for field and laboratory use, the Megger MS2A 115 is portable yet rugged, capable of withstanding demanding industrial environments. Its versatile connectivity and wide measurement range accommodate a variety of relay types and breaker configurations, making it an essential tool for electrical engineers, maintenance teams, and testing professionals.

With the Megger MS2A 115, users can ensure the reliability, safety, and efficiency of electrical systems while simplifying the testing process. Whether for routine maintenance, commissioning, or troubleshooting, this test set delivers precision, speed, and confidence.

Key Features:

• Primary and secondary injection testing for relays and circuit breakers

• High-accuracy measurements and fast response

• Portable, rugged, and suitable for field or lab use

• Intuitive interface with clear, easy-to-read outputs

• Compatible with a wide range of breaker and relay types

• Reduces testing time and improves operational reliability

Technical Specifications

• Input Voltage: 120 V or 240 V AC, 50/60 Hz, single-phase (select at ordering)

• Output Ranges: Continuous across four ranges:
  • 0–5 A at 120 V max
  • 0–25 A at 24 V max
  • 0–120 A at 6 V max
  • 0–240 A at 3 V max

• High Current Capability: Provides up to 750 A for short durations, ideal for instant trip testing

• Ammeter Measurement:
  • 3½-digit LED display with large 7.62 mm digits
  • Switch-selected ranges: 0–1.999 / 19.99 / 199.9 / 750 A
  • Accuracy: ±1 % of reading ±1 digit (high range), ±1 % of range ±1 digit (low range)

Timer & Control

• Digital Multirange Timer: Crystal-controlled, resolution up to 1 ms

• Timer Display: 5-digit LED, large 7.62 mm digits

• Timer Ranges:
  • 0–99.999 s
  • 0–999.99 s
  • 0–99999 cycles

• Timer Control Modes: Automatic start/stop based on output and relay status with selectable modes (Current Actuated / Normally Closed / Normally Open)

Other Features

• Ammeter Modes: Memory or Normal, holds peak value for short-duration currents

• Solid-State Output Circuit: Uses TRIAC for higher reliability with no mechanical contact maintenance

• Applications: Testing overcurrent relays, motor overload relays, ground-fault devices, and molded-case circuit breakers up to 125 A

Dimensions & Weight

• Dimensions: ~9.9 × 14 × 11 in (25 × 35 × 28 cm)

• Weight: ~33 lb (~15 kg)