legrand 896CK-3-4 Ratchet ProTM Series Floor Boxes User Guide
- June 13, 2024
- Legrand
Table of Contents
legrand 896CK-3-4 Ratchet ProTM Series Floor Boxes
Single & Dual-Service Round Floor Boxes
Wiremold® Ratchet-Pro™ Series Floor Boxes provide single- and dual-service capability in a variety of easy-to-install round floor boxes. These designs allow the flexibility for providing power, A/V or communication services to open-space areas in an aesthetic solution. Applications include malls, shopping centers, department stores, airports, hospitals, and office buildings. Ratchet-Pro™ Series Floor Boxes are cULus Listed for use in both on grade and above grade concrete construction.
Ratchet-Pro Series Floor Boxes provide access to power, A/V, and communication services to open-space areas.
Features & Benefits
- Ratchet adjusting ring. Allows for quick and easy installation without gluing, as well as removal of cover to activate at a future date for dual service*. 10° of flexible adjustment allows cover to conform to the surface of the concrete pour, which significantly reduces labor costs.
- Parallel conduit hubs. Allows for conduit feeds to be parallel for both power and communication cables. Reduces labor and material costs by eliminating the need for 90° bends and allows for easier wire pulling for dual-service.
- Graduated cubic inch markings on interior of the box. Allows for quick and easy determination of cubic inch capacity – no need for calculations.
- Complete line of brass, brushed aluminum, and polycarbonate activations. Provides a wide selection of device and aesthetic options.
- Corresponding graduated cubic inch markings on divider. Labor savings provided by easy separation of services. Individual compartment capacities are indicated.
- Individual conduit reducers & plugs. Reduction in labor savings by providing a direct reduction to support smaller conduit feeds.
- Multiple size conduit feeds. Conduit feed ranging from 3/4″ to 2″ trade size openings to allow for more flexibility and capacity.
- 2″ conduit hub. By using 2HUB with the RPSFB and RPSFB-OG floor boxes (sold separately) a greater capacity of pre-terminated cables can be brought in shallower concrete pours.
- Slab-on-grade versions. Boxes offered in PVC and steel with a special fusion bonded epoxy corrosion resistant paint, enables the boxes to be installed in on-grade applications without the need for additional vapor barriers.
- Streamlined design of divider. Labor savings from ease of cuttingusing a utility knife, no hacksaw or tape measure needed. Also allows for more room to splice wires.
- “Dead-Front” protection with the RP Series Covers. Slide covers snap back into place when receptacle is not in use to prevent dirt and debris from entering device.
- Durable mudcap. High impact mudcap protects box from damage when heavy equipment such as scissor lift trucks come in contact with the box during installation.
- TopGuard protection. An integral design which keeps out water, dirt, and debris from the power or communication compartment. Whenever you see the TopGuard protection icon applied to any Wiremold product, you will know that the product meets and exceeds the new UL scrub water exclusion requirement.
- UL Listed to U.S. and Canadian safety standards for tile, terrazzo, and the new UL requirements under UL514A and UL514C for scrub water exclusion test for carpet and wood floors.
Vertical Markets
- Commercial
- Education
- Healthcare
- Retail
- Hospitality
- Financial
Compliance
- cULus Listed Nonmetallic Outlet Boxes. File E110748 Guide QCMZ.
- cULus Listed Metallic Outlet Boxes. File E2961 Guide QCIT.
- Protection from water, dirt, and debris.
Box Components
Ratchet-Pro Series Floor Box Components
Ratchet-Pro 881 Series Floor Box Volume Capacities
To calculate the total box volume, use displacement of the largest uncut section remaining.
BOX HEIGHT
Inches [mm]
| Single Service 895 & 896 Activations
WIRING VOLUME
Cu. Inches [mm]
| Dual Service 895DCC Activations
WIRING VOLUME
(with Divider) Cu. Inches [mm]
6| | [152.0]| 65.0| [1065.0]| 15.0| [738.0]
5| 1/2| [140.0]| 58.0| [950.0]| 39.3| [644.0]
5| | [127.0]| 51.0| [835.0]| 33.6| [551.0]
4| 1/2| [114.0]| 44.0| [720.0]| 27.9| [457.0]
4| | [102.0]| 37.0| [605.0]| 22.2| [364.0]
3| 1/2| [89.0]| 30.0| [490.0]| 16.5| [270.0]
3| | [76.0]| 23.0| [377.0]| 10.8| [177.0]
NOTE: To calculate total box volume, use the displacement of the largest uncut section remaining. Do not use in concrete pours less than 4 1/2″ [114mm] deep. Installation must comply with NEC and local code conductor volume requirements. Not for use when concrete is the finished floor. Use only for tile, carpet, or wood covered floors.
Ratchet-Pro Series Floor Box Wire Fill Capacity Charts
Wire Fill Calculations for RPSFB & RPSFB-OG Floor Boxes
Minimum Box Height (Measured inside from top of cut box – Disregard excess height)| Volume – Cat. No. RPSFB (Each Gang)| RP7CTC & RP4FFCTC
(Available Volume for Conductor Calculations)
| RPAV3CTC & RP4CTC
(Available Volume for Conductor Calculations)
3 1/2″| 89mm| 55 cu.in.| 901 ml.| Not recommended for pours less than 4″
[102mm]
4″| 102mm| 60 cu.in.| 983 ml.| 56 cu.in.| 918 ml.| 45 cu.in.| 738 ml.
4 1/2″| 114mm| 65 cu.in.| 1065 ml.| 61 cu.in.| 1000 ml.| 50 cu.in.| 820 ml.
5″| 127mm| 70 cu.in.| 1147 ml.| 66 cu.in.| 1082 ml.| 55 cu.in.| 901 ml.
5 1/2″| 140mm| 75 cu.in.| 1229 ml.| 71 cu.in.| 1164 ml.| 60 cu.in.| 983 ml.
6″| 152mm| 80 cu.in.| 1311 ml.| 76 cu.in.| 1246 ml.| 65 cu.in.| 1065 ml.
Wire Fill Calculations for RPNFB Floor Boxes
Wire Fill Calculations for RPNFB Floor Boxes
Minimum Box Height (Measured inside from top of cut box – Disregard excess height)| Volume – Cat. No. RPNFB (Each Gang)| RP7CTC & RP4FFCTC
(Available Volume for Conductor Calculations)
| RPAV3CTC & RP4CTC
(Available Volume for Conductor Calculations)
3 1/2″| 89mm| 35 cu.in.| 574 ml.| Not recommended for pours less than 4″
[102mm]
4″| 102mm| 40 cu.in.| 656 ml.| 36 cu.in.| 590 ml.| 25 cu.in.| 410 ml.
4 1/2″| 114mm| 45 cu.in.| 738 ml.| 41 cu.in.| 672 ml.| 30 cu.in.| 492 ml.
5″| 127mm| 50 cu.in.| 820 ml.| 46 cu.in.| 754 ml.| 35 cu.in.| 574 ml.
5 1/2″| 140mm| 55 cu.in.| 901 ml.| 51 cu.in.| 836 ml.| 40 cu.in.| 656 ml.
6″| 152mm| 60 cu.in.| 983 ml.| 56 cu.in.| 918 ml.| 45 cu.in.| 738 ml.
For single service activations – RPAMD4CTC, RPAMD8CTC and RP9AM2CTC, combine both gangs to determine available wire fill.
Ordering Information
Ratchet-Pro Series Floor Box Ordering Information
881: Round Nonmetallic Concrete Floor Box
Round single service nonmetallic concrete floor box. Floor box has four (4) parallel conduit hubs, internal and external graduated markings indicating wiring volume and concrete pour depth respectively.
Box Includes
- (1) Durable/reusable protective cap.
- (1) Adapter ring (881ADP).
- (1) Reducing ring to allow hub to be reduced down to 3/4″ and 1/2″ trade size openings or blanks to close off any unused openings.
Country of Origin: USA
881ADP: PVC Floor Box Ratchet Adjusting Ring
- Used to attach wiring devices and cover plates to PVC Box. Locks into place without using glue or mechanical fasteners.
- Compensates for up to 10˚ of tilt if box is not level. Ground wire is factory attached to the adjusting ring.
Country of Origin: USA
881DIV: PVC Floor Box Divider Plate
Used to isolate power and communication compartments. Graduated cubic inch markings are marked clearly on the divider and correspond directly to the cubic inch markings on the interior of the box. Cuts easily with a utility knife. Supplied with a receptacleplate that completes separation of power and communication services. One divider required for dual- service activation.
Country of Origin: USA
895DCC: Dual-Service Brass Duplex Cover Plate
- With flip lids. Supplied with 1/2″ [12.7mm] screw plug for accessing communication cables. 5 1/2″ [140mm] diameter for carpet applications only.
- Used in conjunction with the 881DIV to complete dual-service activation.
Country of Origin: China
NOTE: One ring required per box, single-or dual-service.
Ratchet-Pro Series Floor Box can be used in both on grade and above grade concrete construction
North American Made Ratchet-Pro Series Floor Box Cover Plates Ordering Information
Ratchet-Pro Series Floor Box Cover Plate Ordering Information
NOTE
- All cover plates are furnished with gasket and three screws.
- The 895P Polycarbonate Series Cover Plates must be field modified for dual-service.
NOTE
- All cover plates are furnished with gasket and three screws.
- The 895P Polycarbonate Series Cover Plates must be field modified for dual-service.
Ratchet-Pro RPSFB & RPSFB-OG Series Floor Box Ordering Information
RPSFB: Rectangular Dual Service Metal Concrete Floor Box
Rectangular dual service metal concrete floor box with a nonmetallic top that allows for concrete pours between 4″ thick to 6″ thick. Graduated markings on the inside and outside of the box indicating volume capacity, as well as the depth of concrete pour. Box accepts 2HUB to allow 2″ conduit feeds (sold separately) while maintaining a 4″ deep concrete pour.
Box includes
- (1) Reusable concrete cap
- (2) Removable knockout plates to allow the 2HUB to be attached
Country of Origin: Mexico
RPSFB-OG: On-Grade Rectangular Dual Service Metal Concrete Floor Box
Rectangular dual service metal concrete floor box with a non-metallic top that allows for concrete pours between 4″ thick to 6″ thick. Graduated markings on the inside and outside of the box indicating volume capacity, as well as the depth of concrete pour. Box accepts 2HUB to allow 2″ conduit feeds (sold separately) while maintaining a 4″ deep concrete pour.
Box includes
- (1) Reusable concrete cap
- (2) Removable knockout plates to allow the 2HUB to be attached.
Country of Origin: Mexico
Dimensions & Knockout Locations
RPSFB &RPSFB-OG Dimensions & Knockout Locations
Ratchet-Pro RPNFB Series Floor Box Ordering Information
RPNFB: Round Dual Service Nonmetallic Concrete Floor Box
Round dual service nonmetallic concrete floor box. Floor box has two 1 1/4″ trade size conduit hubs for power and two 2″ trade size conduit hubs for communications and audio/video services.
Box Includes
- (1) Reusable concrete cap
- (1) Reducing ring for the 2″ hubs that can be reduced down to 1 1/2 Trade size, and 1 1/4″ trade size openings.
- (1) Reducing ring for the 1 1/4″ hubs that allow to be reduced to 1″ trade size opening or 3/4″ trade size opening.
Country of Origin: USA
RPNFB
RPNFB Dimensions & Knockout Locations
Box Kits Ordering Information
Ratchet-Pro RPNFB, RPSFB & RPSFB-OG Series Floor Box Kits Ordering Information
1CRR Top and Bottom Views
Contacts
For latest specs visit: www.legrand.us/wiremold
NOTE: All brand and product names referenced in this document are registered trademarks or trademarks of their respective holders.
Legrand, North America
- 60 Woodlawn Street
- West Hartford, CT 06110
- 1.877.BY.LEGRAND (295.3472)
- www.legrand.us
Canada
- 905.738.9195
- www.legrand.ca
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Documents / Resources
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legrand 896CK-3-4 Ratchet ProTM Series Floor
Boxes
[pdf] User Guide
896CK-3-4 Ratchet ProTM Series Floor Boxes, 896CK-3-4, Ratchet ProTM Series
Floor Boxes, ProTM Series Floor Boxes, Series Floor Boxes, Floor Boxes
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References
- Legrand CA | Delivering and Managing Power, Light, and Data
- Legrand US | Delivering and Managing Power, Light, and Data
- Wiremold Wire and Cable Management Products from Legrand
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