Schneider Electric Square D S33595 v1.60 Full-Function Test Kit for Testing Micrologic and STR Trip Units

Schneider Electric S33595 v1.60 — Full-Function Circuit Breaker Test Kit

The Square D S33595 v1.60 Full-Function Test Kit verifies the performance of Micrologic® and STR trip units used in PowerPact P/R and MasterPact NT/NW circuit breakers. It provides controlled secondary-injection, trip-time measurement, and fault-simulation signals for precise diagnostics. Version v1.60 adds updated firmware logic and calibration stability.

Why It Helps

• Conduct automated and manual trip tests for Micrologic® and STR series using the included 7-pin and 2-pin cables.
• Measure trip-time accuracy (±5 ms, 1 ms resolution) up to 3000 s for coordination verification.
• Inject calibrated voltage (0.031–21.5 Vrms @ 60 Hz) and current (0.02–2.3 A dc) signals with ±3 % accuracy.
• Utilize the built-in 24 V dc output for powering trip units during bench tests.

Key Highlights of v1.60

• Firmware v1.60 provides enhanced timing stability and refined fault-signal generation.
• 115/230 Vac operation with 50/60 Hz selection; Category II, 60 W max.
• Dedicated 7-pin Micrologic® and 2-pin STR test leads plus DB9 Modbus serial port.
• Compatible with STR22/23/43, ET1.0, and Micrologic 2.0–6.0 trip units.

Applications

• Shop and field secondary-injection testing of PowerPact P/R and MasterPact NT/NW breakers.
• Ground-fault and ZSI function verification for Micrologic® controllers.
• Protection coordination and maintenance validation of industrial systems.