800F-MT44

1. Overview

The Allen-Bradley 800F-MT44 is a 22mm emergency-stop mushroom-head operator from Rockwell Automation's 800F push-button series, confirmed as a genuine catalog number. It features a red 40mm mushroom-head actuator with a twist-to-release latching mechanism and a 1NC (normally closed) contact configuration, which complies with IEC 60947-5-5 E-stop requirements. The "800F-MT44" designation identifies the operator actuator itself; complete assemblies use a bezel prefix — 800FP-MT44 (plastic bezel) or 800FM-MT44 (metal bezel, e.g., 800FM-MT44EMX112). The 800F family is Allen-Bradley's 22mm modular platform widely used in industrial control panels across North America and globally.

2. User Sentiment

No forum or community sentiment data was found in the research corpus for this specific part number. The product is stocked and traded by global distributors including Radwell International (with buy/repair options in FR, ES, US markets), Russian distributor Olnisa, and Alibaba-sourced Chinese suppliers (Richen Technology Shanghai), indicating broad market acceptance and ongoing demand. Its position within the well-regarded 800F platform reflects Rockwell Automation's strong installed base in manufacturing.

3. Real-World Applications

The 800F-MT44 is used as a panel-mount emergency stop operator in industrial machinery, automated manufacturing lines, conveyor systems, robotic cells, and process equipment wherever IEC/NEMA-compliant E-stop functions are required. The twist-to-release action (rotate mushroom head to unlatch) is commonly specified in machine safety applications per ISO 13850 and IEC 60947-5-5 where deliberate reset after actuation is needed. The metal-bezel variant (800FM-MT44EMX112) includes ATEX certification, extending its use to potentially explosive atmospheres.

4. Technical Specifications

• Type: Emergency Stop (E-Stop) mushroom-head operator, twist-to-release
• Actuator: Red mushroom head, 40mm diameter
• Release Mechanism: Twist-to-release (rotate head to reset after push-in latching)
• Contact Configuration: 1NC (normally closed)
• Mounting: 22mm panel cutout
• Bezel Options: 800FP-MT44 (plastic bezel) / 800FM-MT44 (metal bezel)
• IP Rating: IP65 (confirmed on 800FM-MT44 variant)
• Certifications: UL, CSA, CE (base); ATEX (metal bezel variant 800FM-MT44EMX112)
• Standards: IEC 60947-5-5 (E-stop devices), UL/CSA industrial control equipment
• Contact Blocks: Separate modular contact blocks; compatible with 800F-series Self-Monitoring Contact Blocks (S.M.C.B.) for safety monitoring circuits

5. Ordering & Compatibility

The base operator designation 800F-MT44 is the actuator/head assembly; buyers typically order the full bezel variant: 800FP-MT44 for plastic bezel or 800FM-MT44 for metal bezel assemblies. Contact blocks are ordered separately (e.g., 800F-X series). The 800FM-MT44EMX112 is a fully configured metal-bezel assembly with specific contact blocks included. Available from Radwell International (new and surplus/repair), Alibaba-sourced distributors, and Russian industrial suppliers; pricing not confirmed in available sources. The 800F platform is compatible with all 800F-series contact blocks, key inserts, and legend plates.

6. Known Issues

No significant user-reported issues were found in the research corpus. The part number "800F-MT44" is confirmed genuine — it is the operator-level designation within the 800F family, distinct from the full assembly PNs like 800FP-MT44 or 800FM-MT44. Note: a one-character discrepancy exists between the bare "800F-MT44" operator code and the distributor-listed "800FMT44" (without hyphen) — these refer to the same product; Radwell and other secondaries list it without the hyphen. No fabrication concern applies to this PN, unlike sibling 800F-PLxx items that were found to be unverifiable.