M22-D-R-K01

1. Overview

The Eaton M22-D-R-K01 is a complete, pre-assembled industrial pushbutton from the RMQ-Titan M22 series — one of Eaton's flagship 22.5mm IEC pilot device lines. It combines a flush red actuator with a factory-installed 1NC (normally closed) contact block (M22-K01), making it a ready-to-install unit in a standard 22.5mm panel cutout. Eaton markets this under both the Eaton and legacy Moeller/Cutler-Hammer brands. The red color and 1NC contact configuration make it the canonical STOP-button solution in industrial machine control panels.

2. User Sentiment

No first-person user forum reviews or community ratings were found among the 391 findings. The product is widely stocked and actively distributed through major industrial distributors globally (Mouser, DigiKey, Newark, RS Online, Grainger, Radwell, and many regional distributors), which indicates strong and sustained commercial demand. The surplus/refurbished market (Radwell, B2E Surplus, Machinio) actively carries factory-sealed units, suggesting the part is well-established and long-lived in production. Pricing observed ranges from ~$23.94 (Legend Electrical) to ~$43.42 (RAMCOI), with eBay surplus as low as $33.00 — suggesting consistent availability without significant obsolescence pressure.

3. Real-World Applications

The M22-D-R-K01 is designed for global machine control applications across industrial automation, motor control panels, and manufacturing equipment. The red flush momentary form factor with 1NC contact is the standard configuration for machine stop functions per IEC safety conventions. The IEC 60947-5-1 / UL / CSA ratings make it suitable for North American and international panel builds. The product appears across markets in Europe (Germany, Spain, Italy), North America, South America (Brazil, Mexico), and Asia (India, Singapore), and is found in categories including Motor Control and Pilot Devices.

4. Technical Specifications

• Type: Non-illuminated flush momentary pushbutton, complete assembled device
• Color: Red (actuator/cap)
• Bezel: Silver (titanium-finished plastic, non-metallic)
• Contact Configuration: 1NC (1 normally closed, SPST-NC)
• Mounting: Flush, panel mount front
• Hole Size: 22.5mm (22.3mm panel cutout diameter)
• Operation: Momentary (spring-return)
• Switching Current: 6A (rated); some sources cite 10A at 500VAC (contact block rating)
• Voltage Rating: 500V AC/DC
• IP Rating: IP67, IP69K
• NEMA Rating: NEMA 4X, NEMA 13
• Mechanical Life: 5,000,000 operations
• Operating Temperature: -25°C to +70°C
• Terminal Type: Screw terminals
• Dimensions: Height 2.16 in (54.9mm), Length 1.46 in (37mm), Width 1.18 in (30mm)
• Weight: 0.03 kg
• Series: M22 / RMQ-Titan
• Eaton Article Number: 132618 (BVP blister-pack variant); UPC 786685276229
• Certifications: CE, CSA, UL, GoST-R (Russia), Bureau Veritas CCC (China), Lloyd's Register
• Country of Origin: Germany (DE)
• CAD Models: Available via TraceParts in SOLIDWORKS, CATIA, Inventor, Creo, STEP, IGES, DWG

5. Ordering & Compatibility

The M22-D-R-K01 is the standard screw-terminal complete unit; the M22-D-R-K01-B100 is the pressure-connection (spring-cage) variant. The M22-D-R-K01-BVP is the retail blister-pack packaging variant (Eaton article 132618, EAN 4015081295630). In the Brazilian market, catalog number 70024731 is also referenced. The -K01 suffix denotes inclusion of the M22-K01 (1NC) contact block; the companion M22-D-R-K10 adds a 1NO contact instead. The M22 platform is modular: actuators, contact blocks, and bases can be ordered and assembled separately, or as complete units. Compatible accessories include additional contact blocks (M22-K01, M22-K10, M22-K01-E), legend plates, and spring-cage adapter bases (M22-A). DigiKey part number: 5730-M22-D-R-K01-ND. Newark part: 09P6107. Pricing at major distributors ranges from approximately $24 to $44 USD new.

6. Known Issues

One minor data discrepancy observed: some sources (DigiKey, GlobalSpec) list the contact configuration as DPST-NC while others (Newark, OEM Secrets) list SPST-NC. This likely reflects whether the internal NC contact circuit is counted as one or two poles — the actual contact block (M22-K01) provides a single NC switching element. GoVets title mentions "1NO/1NC" but the product body specs confirm 1NC only. The Italian-language WI Automation listing shows "13,500,000 operations" which is a decimal-separator formatting artifact of the "5,000,000" figure (Italian uses period as thousands separator). No structural defects, failure modes, or user complaints were identified in the research corpus.