OVERVIEW

Official designation: Allen-Bradley 1492-WM3 (Bulletin 1492-W, One-Circuit Mini Feed-Through Block)

Role/Application: A compact, single-circuit screw terminal block for DIN rail mounting, designed for high-density, secure electrical connections in industrial control systems.

KEY SPECS SUMMARY

Power: 300 V AC/DC (UL/CSA)

Interfaces / Ports: One-Circuit Screw Connection

Indicators: N/A

Operating Temp: Minus 40 degrees C to plus 90 degrees C

Platform / Compatibility: 15 millimeter DIN Rail mount

Limit: 15 A (UL) / 24 A (IEC), 30-14 AWG (UL)

Lifecycle: Active Mature

FREQUENTLY ASKED QUESTIONS

Technical Specifications:

Q: What are the primary current and voltage ratings under UL and IEC standards for this block?

A: The rating is 15 A at 300 V AC/DC (UL/CSA) and 24 A at 500 V AC/DC (IEC).

Wiring & Installation:

Q: What is the recommended wire strip length and tightening torque for secure connections?

A: The required wire strip length is 0.24 inches (6 mm) with a torque of 4.2 to 4.6 pound-inches.

Troubleshooting & Compatibility:

Q: What are the physical dimensions of the 1492-WM3 terminal block for space planning?

A: The dimensions are 5 mm wide by 29 mm high by 24.6 mm deep.

Replacement & Upgrades:

Q: What is the primary difference between the 1492-WM3 and the 1492-WM4 terminal blocks?

A: The 1492-WM3 is a one-circuit block, while the 1492-WM4 is a two-circuit version.