Pushbutton Switches 30MM PSH BTTN OPERATOR W/O KNOB
Research Notes
1. What this is
9001KR20 is a Schneider Electric Harmony Class 9001K 30mm heavy-duty command device — rugged operators/contact blocks with chrome-plated bezels (US-style 30.5mm).
2. Part-number decode
- Series: Square D 9001K
- Panel cutout: 30.5mm
- Bezel material: Metal
- Type: operator/block
3. Compatibility & ordering
Schneider's Harmony (22/16mm) and Square D Class 9001 (30mm) are the reference IEC/US command-switch ranges. This is a modular component — a Harmony/9001 device is assembled from an operator head + mounting collar + contact/light block(s). Confirm you have the matching head and blocks for a complete device. Match by size (16/22/30mm), bezel material (metal XB4/ZB4 vs plastic XB5/ZB5), function (pushbutton/selector/indicator/E-stop), colour, illumination, and contact arrangement; cross-reference to Allen-Bradley 800F/800T, Siemens 3SU, IDEC HW, or Eaton M22 by the same attributes if needed.
4. Data-quality note
The Schneider series, bezel material, size, and component type are decoded from the part number (grounded in the se.com Harmony catalog and distributor listings). The exact colour and contact arrangement are encoded in the remaining digits and depend on the sub-family — confirm against the Schneider datasheet for a precise order (not guessed here).
5. Sources
- Schneider Electric Harmony / Square D Class 9001 catalog (se.com)
- Distributor listing (Rexel / Mouser / Newark) — search the exact part number
1 source
- Schneider Electric — 9001KR20 — se.com
Thông số kỹ thuật
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Bezel material
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metal
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Component type
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operator/block
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Enriched by
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schneider-decoder-2026-08-12
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Lead time
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0 Days
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Manufacturer series
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Square D 9001K
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Mouser part number
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996-9001KR20
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Panel cutout
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30.5mm
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Pn status
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decoded
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Wireless Range
Maximum wireless range in open air. Walls and interference reduce this significantly.
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Harmony / Square D Class 9001
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Rohs status
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Series description
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Square D Harmony Class 9001K 30mm heavy-duty command device — rugged operators/contact blocks with chrome-plated bezels (US-style 30.5mm)
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Hướng Dẫn Cài Đặt Nhanh
Panel cutout: 22mm. Insert from the front of the panel, secure with mounting nut from behind (tighten to 2-3 Nm).
Contact block: Snap or screw the contact block onto the rear of the button body. Ensure the contact block orientation matches the wiring diagram — NO terminals are usually marked.
Wiring: Use 0.5-2.5mm² stranded wire with ferrules. Tighten screw terminals to 0.8 Nm. Test the button function before energizing the circuit.
Kích thước
Khắc phục sự cố
Button doesn't respond when pressed
Check the contact block first — it's the most common failure point. Test continuity across the NO or NC terminals with a multimeter. If no click is felt, the return spring in the head may be broken.
Works intermittently
Contact block contacts are pitted or burned. Replace the contact block — don't try to file the contacts. Check if the rated cycle count has been exceeded.
Button feels mushy or doesn't click
The spring return mechanism in the button head is worn. Replace the head. The contact block can usually be reused if it tests OK.
Thông số kỹ thuật nhanh
- Bezel material
- metal
- Component type
- operator/block
- Enriched by
- schneider-decoder-2026-08-12
- Lead time
- 0 Days
- Manufacturer series
- Square D 9001K
