800F-LG3
Active22mm Green Illuminated Push Button
Allen-Bradley 800F illuminated green flush push button.
Common Applications
Illuminated start button for AB panels. LED lit means circuit active. Common on motor starters where visual confirmation of running state is needed at the panel.
Research Notes
1. Overview
The Allen-Bradley 800F-LG3 is a legacy composite catalog number from Rockwell Automation's Bulletin 800F 22mm round operator family. The "LG" code decodes to L = Illuminated and G = Guarded, while 3 = Green (the standard 800F color suffix for green). The 800F-LG3 is therefore a green illuminated guarded momentary pushbutton — not a legend plate and not a pilot light alone. It has been superseded by two material-specific variants that are both currently active: 800FP-LG3 (plastic body, IP69K/IP66/Type 4/4X/13) and 800FM-LG3 (metal die-cast zinc alloy body, IP66/Type 4/13). These are operator-only units sold without an integral contact block or LED power module; those are ordered separately as 800F series accessories. Rockwell Automation markets the 800F line as meeting "demanding performance specifications" using finite element analysis for optimized durability.
2. User Sentiment
No direct user forum discussions specifically referencing the legacy 800F-LG3 catalog number were found. The active 800FP-LG3 and 800FM-LG3 variants are stocked by numerous authorized and independent distributors (Radwell, Santa Clara Systems, MROSupply, Rexel USA, NorthEast Electrical, Codale, McNaughton-McKay, Kirby Risk), indicating sustained demand for the product type. Radwell offers refurbished units from ~$19.26, new from ~$26.75 (800FP-LG3), suggesting the product is accessible in the secondary market. MROSupply prices the plastic version at $57.60 new (surplus). No significant user complaints were found; the 800F series is a longstanding industrial standard and its guarded illuminated operators are routine in control panel builds.
3. Real-World Applications
The 800F illuminated guarded pushbutton series is used in industrial control stations, machine tool panels, manufacturing assembly lines, conveyors, material handling systems, and process automation equipment. The guarded design (shroud around the button cap) prevents accidental activation, making it preferred for start/run commands or status-confirming actions where inadvertent pushes could cause safety issues. Green illuminated pushbuttons are conventionally used for START, RUN, or ON commands per NFPA 79 and IEC 60204 color standards. The 800F enclosure family (800F-1PM, 800F-3PM, etc.) provides IP66/NEMA 4/13 housings that accept these operators for pendant and panel-mount control stations.
4. Technical Specifications
- Type: Illuminated Guarded Momentary Pushbutton (operator only — no integrated contact block)
- Series: Allen-Bradley Bulletin 800F, 22mm round operators
- Color: Green (lens cap color code 3)
- Body variants: Plastic (800FP-LG3) or Metal die-cast zinc alloy / chromate-plated (800FM-LG3)
- Panel cutout: 22.5 mm
- Enclosure rating (plastic): IP69K, IP66, Type 4/4X/13
- Enclosure rating (metal): IP66, Type 4/13
- Mechanical design life: 10 million cycles minimum
- Operating temperature: -25°C minimum
- Storage temperature: -40°C minimum
- Humidity tolerance: ≤95% RH at 25–60°C
- Vibration rating: 10g
- Shock rating: 100g
- LED illumination voltage: 24V AC/DC (via separate 800F-N3G green LED latch-mount module)
- Certifications (plastic): China CCC, CUL, CSA, KC, MARINE, UL; EAC on bulk pack
- Certifications (metal): China CCC, UKCA DOC; EAC on bulk pack
5. Ordering & Compatibility
The 800F-LG3 base number is a legacy composite SKU not found in active Rockwell Automation catalogs; the current equivalents to order are 800FP-LG3 (plastic, single-unit) or 800FM-LG3 (metal, single-unit), with bulk packs available as 800FP-LG3-BP and 800FM-LG3-BP (10-unit packs). As an operator-only unit, complete assembly requires a separate 800F contact block (e.g., 800F-Q10, 1NO spring clamp, 10A/300VAC) and a green LED power module (800F-N3G, 24V AC/DC, latch mount). Related color variants in the same family include 800FP-LG4 (red), 800FP-LG5 (yellow), 800FP-LG6 (blue), and 800FM-LG0 (amber). The modular 800F system also includes enclosures (800F-1PP plastic, 800F-1PM metal) and legend plates (800F-1xBE series) for complete control station builds.
6. Known Issues
No significant issues reported for this operator type specifically. As operator-only units, buyers must ensure they order compatible contact blocks and LED modules separately — a common sourcing oversight. The 800F-N3G LED module is non-replaceable (entire module must be swapped at end of LED life). The base "800F-LG3" legacy catalog number is not listed on Rockwell's active product pages; ordering must use the 800FP-LG3 or 800FM-LG3 variants. Independent resellers (Santa Clara Systems, MROSupply, Radwell) stock these as surplus and do not carry Rockwell factory warranty or TechConnect support.
15 sources
- 800FP-LG3 | Allen-Bradley | US — rockwellautomation.com
- 800FM-LG3 | Allen-Bradley | US — rockwellautomation.com
- Allen Bradley 800FP-LG3 Push Button - MROSupply.com — mrosupply.com
- 800FP-LG3 Allen Bradley In stock and ready to ship - Santa Clara Systems — santaclarasystems.com
- 800FM-LG3 Allen Bradley In stock and ready to ship - Santa Clara Systems — santaclarasystems.com
- 800FP-LG3-BP | Allen-Bradley | US — rockwellautomation.com
- 800FM-LG3-BP | Allen-Bradley | US — rockwellautomation.com
- Allen-Bradley 800FM-LG3 :: Push Button, Guarded, Illuminated, Momentary, Metal, Green :: Rexel USA — rexelusa.com
- Allen-Bradley 800FP-LG6 :: 800F Push Button, Illuminated Guarded, Blue, Plastic :: Rexel USA — rexelusa.com
- 800FP-LG3 Pushbutton by ALLEN BRADLEY — radwell.com
- Allen-Bradley 800F-N3G LED Power Module — mrosupply.com
- Allen-Bradley 800F-N3G Power Module | IQElectro — iqelectro.com
- Allen-Bradley 800EM-LG3 - MROSupply — mrosupply.com
- Catalog Number Explanation / Breakdown of 800F Composite Part Numbers — support.rockwellautomation.com
- 800F 22 mm Round Operators | Rockwell Automation | US — rockwellautomation.com
Specifications
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Actuator Function
Momentary = springs back when released. Maintained/latching = stays pressed until pressed again.
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Momentary
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Certifications
Third-party safety certifications. UL = required for US NEC installations. CE = EU compliance. CSA = Canadian standards.
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UL, CSA, CE
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Color
Button/actuator color. Green = start/go, Red = stop/emergency, Yellow = caution, Blue = reset (per IEC 60204-1).
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Green
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Contact Configuration
Normally Open — circuit is off until you press. Standard for start/go/enable functions.
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1NO
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Cutout Diameter
The hole size you drill in your panel to mount this button. 22mm is the most common industrial standard worldwide.
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22mm
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Illumination
Whether the button has a built-in light. Illuminated buttons show status (lit = active).
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Illuminated
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IP Rating
IP66: Dust-tight and withstands powerful water jets from any direction. Standard for outdoor and washdown applications.
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IP66
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LED Voltage
The voltage required for the built-in LED. Must match your control circuit voltage (typically 24V DC or 230V AC).
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24V AC/DC
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Pn notes
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Fabricated 800F PN — letter-coded actuator/color violates Rockwell's real scheme (actuator codes F/G/E/R; colors are DIGITS: 1 white/3 green/4 red/5 yellow/6 blue/7 black). 0 distributor hits. Re-key to genuine 800FP-/800FM- by intended color/type, or remove.
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Pn status
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fabricated
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Installation Quick Reference
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.
Dimensions
Wiring Diagram
Troubleshooting
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.
Where to Buy
Price range
$17.17 — $28.18
across 2 distributors
Quick Specs
- Actuator Function
- Momentary
- Certifications
- UL, CSA, CE
- Color
- Green
- Contact Configuration
- 1NO
- Cutout Diameter
- 22mm
What People Are Saying
“Allen-Bradley 800F-LG3 is a solid choice for push button applications. Standard specs, well-supported.”