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RP1155BF 125 x 85 x 85 mm ABS plastic water-tight enclosure with opaque lid and bottom mounting flange

Hammond RP1155BF 125x85x85mm ABS Watertight Box, Bottom Flange

Hammond Manufacturing|

MPN: RP1155BF

|

UPC: 623980745237

In Stock
$11.28

Ships from and sold by A5 IT

Ground Shipping · $18.67Arrives by Monday, Oct 26
Order within 4h 25m to get it by Monday, Oct 26
New, with full manufacturer warranty
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Key Features

  • Nominal size 4.92 in x 3.35 in x 3.35 in (125 mm x 85 mm x 85 mm)
  • Designed to meet IP65; gasketed tongue and groove lid resists oil, dust and water
  • General purpose ABS plastic, UL94 HB flame rating, opaque lid
  • Integral bottom flange with 5.20 mm holes on 142.00 mm centres for surface mounting
  • Accepts PC boards up to 117 x 77 mm; posts accept M3 self-tapping screws
  • Self-captivating M3.5 stainless steel lid screws in corrosion resistant bushings (included)
  • Optional STC113 plastic or STA113 aluminum inner panels; replacement gasket RP113GASKET
  • RoHS and REACH compliant

The RP1155BF is a water-tight ABS plastic enclosure with an opaque lid and an integral bottom mounting flange, measuring 4.92 in x 3.35 in x 3.35 in (125 mm x 85 mm x 85 mm). It is the tallest 125 x 85 mm body in this flanged group at 85 mm, with 78.50 mm of inside height for bulkier components. Designed to meet IP65, it suits OEM engineers, panel builders and electronics integrators who need to house printed circuit boards or components and bolt the box directly to a wall, panel or machine surface.

The body is general purpose ABS plastic with a UL94 HB flame rating, with an opaque lid that carries a smooth recessed area for a membrane, label or silkscreen. The part page lists the colour as Light Gray. A two-piece tongue and groove lid with a rubber gasket protects against access of oil, dust and water; the gasket is included and must be field installed.

According to the drawing, the flanged body is 155.95 mm [6.14 in] long overall, with flange mounting holes of 5.20 mm [0.20 in] diameter on 142.00 mm [5.59 in] centres. Inside, the RP1155BF offers 118.71 mm [4.67 in] x 78.71 mm [3.10 in] of floor space and 78.50 mm [3.09 in] of inside height, and accepts a printed circuit board up to 117 mm x 77 mm. Board mounting posts accept M3 self-tapping screws.

The lid is secured with self-captivating M3.5 stainless steel machine screws, included, threaded into corrosion resistant bushings for repetitive assembly and disassembly. Hardware includes lid screws, PC board screws and the gasket. Optional inner panels are STC113 (plastic) and STA113 (aluminum), a replacement gasket 2-pack is RP113GASKET, and extra screws are available as SC619-50 (M3.5-0.6 x 10 mm lid screws) and SC622-50 (M3 x 6 mm PC board screws). The part is RoHS and REACH compliant and ships in a bag.

Ideal For

  • Housing printed circuit boards and electronic components
  • Surface-mounted enclosures for dusty or wet locations (IP65 design)
  • Flange-mounted control and sensor boxes on panels or machines
  • Custom front panels using the recessed lid for membranes, labels or silkscreen
  • DIN rail or inner-panel component mounting

Mounting

MountingIntegral bottom flange
PC Board MountingInternal mounting posts accept M3 self-tapping screws
Flange Mounting Hole Spacing142.00 mm [5.59 in]
Flange Mounting Hole Diameter5.20 mm [0.20 in]
Internal Mounting Options (Series)Internal DIN rail mounting tabs and PC board mounting posts; options vary with size, refer to drawing

Overview

TypeGeneral purpose, water-tight
SeriesRP Series With Bottom Flange (Water-Tight ABS & Polycarbonate Enclosures)
Lid TypeOpaque lid
Part NumberRP1155BF
Long Descriptionenclosure - plastic
Short DescriptionABS WATERTIGHT
Series Ordering Table ColumnLight Gray ABS Plastic · Opaque Lid w/ Bottom Flange

Dimensions

Width3.35 in (85 mm)
Height3.35 in (85 mm)
Length4.92 in (125 mm)
Inside Width78.71 mm [3.10 in]
Inside Height78.50 mm [3.09 in]
Inside Length118.71 mm [4.67 in]
Lid Inlay Depth0.50 mm [0.02 in]
Body Width (Drawing)87.54 mm [3.45 in]
Body Length (Drawing)125.50 mm [4.94 in]
Max. P.C. Board Width77 mm
Max. P.C. Board Length117 mm
Nominal Size (L X W X H)4.92 in x 3.35 in x 3.35 in (125 mm x 85 mm x 85 mm)
Overall Height (Drawing)85.00 mm [3.35 in]
Overall Length Incl. Flange (Drawing)155.95 mm [6.14 in]

Accessories

Extra Lid ScrewsSC619-50 (50-pack, self-tapping M3.5-0.6 x 10mm)
Extra PC Board ScrewsSC622-50 (50-pack, self-tapping M3 x 6mm)
Replacement Gasket (2-pk)RP113GASKET
Optional Inner Panel (Plastic)STC113
Optional Inner Panel (Aluminum)STA113

Identifiers

UPC623980745237
UNSPSC39121301
Drawing ReferenceRP115 BF, REV:20.11.2025

Packaging & Shipping

Packaging Typebag
Shipping Weight0.49 lbs (0.22 kg)

Construction & Finish

ColorLight Gray
GasketRubber gasket included; must be field installed
MaterialABS Plastic
CAD ModelsSolid models available in .stp or .x_t
Lid ScrewsSelf-captivating M3.5 stainless steel machine screws (included), threaded into corrosion resistant bushings
Lid SurfaceSmooth recessed area for membrane, label or silkscreen
Lid ConstructionTwo-piece tongue & groove, gasketed
Hardware IncludedLid screws, PC board screws and gasket
Factory ModificationEnclosures can be factory modified (milling, drilling, printing etc.)

Environmental & Protection

IP RatingIP65
Flame RatingUL94 HB
Chemical ResistanceSome chemicals can damage or weaken plastic; avoid acetone, ketones, ethers, aromatic and chlorinated hydrocarbons, thread locking compounds, cutting/tapping fluid, water detection and anti-seize paste, strong solvents or cleaners, and some greases and oils

Compliance & Certifications

RoHS CompliantYes
REACH CompliantYes

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Frequently Asked Questions

What are the dimensions of the RP1155BF?▾

Nominal size is 4.92 in x 3.35 in x 3.35 in (125 mm x 85 mm x 85 mm). The drawing shows 155.95 mm [6.14 in] overall length including the flange, and inside dimensions of 118.71 mm [4.67 in] x 78.71 mm [3.10 in] x 78.50 mm [3.09 in] high.

What is the largest circuit board it will hold?▾

The maximum P.C. board size is 117 mm long by 77 mm wide, and the internal posts accept M3 self-tapping screws.

Is it water-tight?▾

It is designed to meet IP65. The gasketed two-piece tongue and groove lid protects against access of oil, dust and water; the included rubber gasket must be field installed.

How is it mounted?▾

Through the integral bottom flange, which has 5.20 mm [0.20 in] diameter holes on 142.00 mm [5.59 in] centres according to the drawing.

What material and flame rating is it?▾

General purpose ABS plastic with a UL94 HB flame rating, listed as Light Gray.

Which accessories fit this enclosure?▾

Optional inner panels STC113 (plastic) and STA113 (aluminum), replacement gasket 2-pack RP113GASKET, extra lid screws SC619-50 and extra PC board screws SC622-50.