SKU: 62879687087

Anti Trip - Hercules O Shield (511-B2O)

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Description

Anti Trip - Hercules O Shield (511-B2O)NEMA Type 2, 4 & 13 UL ENCLOSURE 2, 4 & 13 CSA ENCLOSURE 2, 4 & 13 EN 60529 Degree of Protection IP56 DRIP TIGHT DUST TIGHT WATERTIGHT OIL TIGHT ADVANCED DESIGN HELPS PREVENT ACCIDENTAL ACTUATION MATERIALS OF CONSTRUCTION: Treadle and housing constructed from cast iron for strength and durability Protected by a strong cast aluminum shield Special AirVal models available to the O. E. M. on special order Painted Alert Orange Single 3 4 14 N. P. T.

NEMA Type 2, 4 & 13 • UL ENCLOSURE 2, 4 & 13

CSA ENCLOSURE 2, 4 & 13

EN 60529 Degree of Protection IP56


DRIP TIGHT • DUST TIGHT • WATERTIGHT • OIL TIGHT


ADVANCED DESIGN HELPS PREVENT ACCIDENTAL ACTUATION

MATERIALS OF CONSTRUCTION:

• Treadle and housing constructed from cast iron for strength and durability

• Protected by a strong cast aluminum shield

• Special AirVal models available to the O.E.M. on special order

• Painted Alert Orange

• Single 3/4”-14 N.P.T. threaded conduit entry is standard


FEATURES & BENEFITS:

• Heavy duty foot switch features an anti-trip treadle mechanism that helps prevent accidental actuation through unintentional stepping on foot treadle

• Switch operation requires that the latch trip lever be released prior to depressing the foot treadle as in-line foot pressure is applied to the latch trip lever located at the rear of the foot treadle

• Smooth trip lever release and treadle depression motion results in good rate of ­operation

• Dual treadle return springs and latching mechanism

• Anti-skid rubber feet and 3 holes for rigid mounting to floor or equipment

• All Models have a neoprene Cover Gasket plus O-Rings on the Actuating shaft and separate ground screw


OPTIONS:

• Oversize “O”  and “OX” Shield models accept oversized safety shoes and metatarsal foot guards.  The “OX” Shield has an additional 3/4” (19.1 mm) opening height as compared to the “O” shield

• Special Dual 1/2”-14 N.P.T. threaded conduit entry and metric sizes available to the O.E.M. on special order

• Special Twin & Triple models available to the O.E.M. on special order

• Gated Models available for additional protection (See pages 25 & 26 for details)

• RF Wireless models are available

 

  Warning: This Product can expose you to chemicals including Nickel, which is known to the sate of California to cause cancer and birth defects or other reproductive harm. For more information please visit www.p65warnings.ca.gov

 

Dimensions

SIZE (HxWxD):

5.31 x 5.88 x 9.13 in.

WEIGHT:

8.00 lbs.

 

Agency Approvals  EN 60529 Stage Circuit Form Electrical Ratings
    IP56


Single

DPDT

C

 

20 A 125-250 VAC
1 H.P. 125-250 VAC

Heavy Pilot Duty 250 VAC Max.

 

One pole of these models has an adjustable actuating mechanism that enables you to make or break one pole before the other.   EXAMPLE: You can break the N.O. Circuit long before you would remake a N.C. Circuit in a 511-B2.

View Data Sheet - Link to data sheet

Replacement Part - 534-SS

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 62879687087

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GN
Massapequa, US
★★★★★ 5
MUST BUY Item for Breastfeeding Moms
Size: Standard (18-Inch), Color: Dark Grey
MUST GET item for breastfeeding moms. It is a soft pillow with a removable washable cover. The material is like a suede, which can make it hot to lean on if you typically feel hot when breastfeeding or sleeping. It allows you to sit up straight while in bed with great support.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 1, 2026
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Ms. Rea
Whiting, US
★★★★★ 5
It's perfect support.
Size: Extra Back Support (21-Inch), Color: Dark Grey
The best way to describe the super comfy reading pillow is super comfy. I use it to sit up while watching something soothing to my mind on tv and due to its comfyness and softness, it's perfectly just right for my back. The funny thing is within a few minutes I'm knocked out sleep, which is a good thing. It's soft but firm lumbar area and arms feels oh so comfortable. It gives the best sleep quality and less toss and turning. I highly recommend.
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Reviewed in the United States on May 7, 2026
M
Verified Purchase
Michael Simko
Port Orchard, US
★★★★★ 4
Great Size and Comfort
Size: Extra Back Support (21-Inch), Color: Dark Grey
2 months after buying a different reading pillow I felt it was time to buy a different one based on the comfort and support. I found this one listed for a good price. After carefully looking through the listing, I bought the 21" size. On my first night of usage, I was already impressed with the comfort and support vs the reading pillow I had bought 2 months prior. I like how this one has nice support for my neck and head as I'm relaxing on my bed with my laptop and phone. The texture of the filling gives it a very nice combination of cushioning and firmness. The horizontal feature line in the center of the pillow is a nice feature for back and neck support thanks to it giving the pillow some flexibility. As for the arms, their length, width, height, and cushioning are very good for resting my arm while I'm using the wireless mouse with my laptop.
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Reviewed in the United States on February 27, 2026
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GhostFingersXP
West Palm Beach, US
★★★★★ 5
Book Reading Wife Approved
Size: Standard (18-Inch), Color: Sage Green
I purchased this for my wife who reads quite a bit and she absolutely loves it. She said it feels soft, is the right size for her, and makes book reading more comfortable for her. I call it a win.
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Reviewed in the United States on April 23, 2026
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A Brown
Louisville, US
★★★★★ 3
Not good quality
Size: Standard (18-Inch), Color: Dark Grey
Comfy, however it’s getting flat an only had it a week
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Reviewed in the United States on April 27, 2026

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