Overview
The Square D 9001KM38 /H is a 30mm light module designed for the Harmony 9001K/9001SK pushbutton family. This pilot light assembly uses an incandescent bulb and includes integral resistor circuitry, making it a complete solution for operator feedback in machine control systems. Rated at 120V AC-DC, it mounts directly into compatible 30mm bases with screw terminal connections.
Key Features
- 30mm diameter light module – fits standard Harmony 9001K and 9001SK bases
- 120V AC-DC rated with integral resistor – no external ballast needed
- Incandescent lamp provides bright, easily visible status indication
- IP20 rating – impact, dust, and vibration resistant for harsh industrial environments
- Screw terminal construction – reliable connection and field serviceability
- Direct/surface mounting – straightforward installation on control panels
Technical Specifications
- Part Number: 9001KM38 /H
- Manufacturer: Square D (Schneider Electric)
- Series: Harmony 9001K / 9001SK
- Size: 30mm diameter
- Rated Voltage: 120V AC-DC
- Lamp Type: Incandescent bulb (120MB)
- Terminal Type: Screw terminal
- Mounting: Direct/surface mount to 30mm base
- Protection Rating: IP20 (impact, dust, vibration resistant)
- Weight: Approximately 70 grams
- Material: Plastic bezel with incandescent assembly
- Terminal Torque: 10 in-lb (1.13 N-m)
- Certifications: Class 1, Division 2, Groups A-D, Temperature Class T3C
Typical Applications
Machine builders and system integrators use the 9001KM38 in a wide range of industrial automation settings:
- Motor starter and drive status indication
- Equipment running/ready/alarm feedback on control panels
- Machine tool operator interfaces and instrumentation
- Assembly line status visualization
- HVAC and process control system indicator lights
- Chemical processing and pharmaceutical equipment panels
Compatibility & Replacements
The 9001KM38 is designed as a direct fit for Square D Harmony 9001K and 9001SK 30mm pushbutton stations. It accepts the standard 120MB incandescent lamp cartridge and works with integral resistor wiring for 120V AC-DC circuits. When replacing a failed unit, verify the base module is part of the Harmony 9001 family and confirm the 30mm opening before installation. This light module is a common OEM replacement part stocked by major distributors including Rexel, Mouser, and standard electrical supply chains.
