SKU: 36768699148

Anti Trip - Hercules O Shield (511-B4O)

Sale price$139.59 Regular price$155.10
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Ships within 48 hours · Estimated delivery Sep 3 - Sep 8

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Description

Anti Trip - Hercules O Shield (511-B4O)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 DB

Z

 

15 A 125-250 VAC
1/2 H.P. 125 VAC

1 H.P. 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

Double Break models must be wired to equal voltage sources and the same polarity. The loads should be on the same sides of the line.

View Data Sheet - Link to data sheet

Replacement Part - 534-U6

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
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: 36768699148

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K
Verified Purchase
kathp
Alexandria, US
★★★★★ 5
Replacement parts
Style: with Pre-Filter
Was so happy to find the replacement parts for my eufy robovac. Really makes a big difference in vac performance.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 5, 2026
M
Verified Purchase
Mr. Joseph
Boise, US
★★★★★ 5
Everything you need to do full maintence of your robot vaccum
Style: C20 Parts * 19pcs
this kit truly includes everything you need to do full maintenance of your eufy C20 vacuum. From replacement brushes and filters to cleaning tools and essential spare parts, it covers all the basics to keep your vacuum running like new. The components are well-made and fit perfectly, making installation quick and hassle-free. Regular maintenance becomes much easier when everything you need is in one convenient package. It saves time, extends the life of your vacuum, and helps maintain strong suction and cleaning performance. Highly recommended for routine upkeep and long-term performance.
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Reviewed in the United States on February 11, 2026
L
Verified Purchase
Leonardo C.
San Leandro, US
★★★★★ 5
Muy bueno
Style: C20 Parts * 19pcs
Muy bueno lo recomiendo
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Reviewed in the United States on May 11, 2026
J
Verified Purchase
J. Neiderer
Louisville, US
★★★★★ 5
Great value for the money, nice to have on-hand
Style: C20 Parts * 19pcs
This set is great and is an affordable way to keep my eufy Omni C20 Robot Vacuum ready to perform. I run my vacuum in about 500 sq feet of my home at least twice a day. Having all the consumable pieces I need (minus the soap for cleaning the floor and the actual water to fill the tank) on-hand makes machine maintenance easy to do. These pieces are easy to change out, too, and the installation was easy as well. I don't have great hand strength but nothing was too hard for me to change myself.
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Reviewed in the United States on November 12, 2025
N
Verified Purchase
Noodlespark
Fort Morgan, US
★★★★★ 1
Bad fit
Style: C20 Parts * 19pcs
The dust bags do not fit properly. You can get the base to acknowledge them if you place them just right, but any little movement can move them out of place. I have to constantly reseat them because the base thinks there is no bag. The stock bags do not have this problem. Edit: It has gotten to the point where it is constantly flipping between registering and not registering the bag. Changing to 1 star because they are unusable. If I'm not there to fix it, the task fails every time.
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Reviewed in the United States on January 29, 2026

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