
The MB105040 is a 100 x 50 mm footprint MB Series enclosure with a 40 mm depth and a solid lid. It is built as a rugged electronic instrument housing for printed circuit boards in hand-held, desktop or wall mount applications, giving designers extra height over the 25 mm version of the same footprint.
The box is molded in polystyrene. Its lid is smooth light gray (RAL 7035) and the bottom is smooth dark gray (RAL 7012), and the front and rear panels are molded as part of the bottom unit. The lid is fastened with four cover screws, called out on the drawing as M3-0.5 x 14mm, which thread into integrated brass inserts and are hidden in a recess in the base.
Outside dimensions are 3.94 x 1.97 x 1.57 in (100 x 50 x 40 mm), with an internal space of 94 x 44 x 33 mm. The solid lid provides an IP40 rating; the enclosure is rated UL94 HB for flammability.
The MB105040 is supplied in a box with the enclosure, lid, four cover screws and four P.C. board screws. Recommended cover screw torque is 2.5 lbf-in (30 cN-m). It is RoHS and REACH compliant, has a shipping weight of 0.16 lbs (0.07 kg), and solid models are available in STEP or IGES for layout work.
| Type | General Purpose |
| Series | MB Series Two Tone Fixed Panel Enclosures |
| Ventilated Lid | No |
| Long Description | enclosure - plastic |
| Short Description | MULTI BOX ENCLOSURE |
| Enclosure Family (Drawing) | MB1050 Regular Enclosure |
| Internal Depth | 33 mm |
| Internal Width | 44 mm |
| Size L X W X H | 3.94 in x 1.97 in x 1.57 in (100 mm x 50 mm x 40 mm) |
| Internal Length | 94 mm |
| Outside Depth (Ordering Table) | 40 mm |
| Outside Width (Ordering Table) | 50 mm |
| Outside Length (Ordering Table) | 100 mm |
| UPC | 623980135540 |
| UNSPSC | 39121301 |
| Part Number | MB105040 |
| Purchased Assembly Includes | Box, lid, 4 cover screws and 4 P.C. board screws |
| Solid Models | Available in STEP or IGES |
| Factory Modification | Milling, drilling, printing etc. available from the factory on request |
| Packaging Type | Box |
| Shipping Weight | 0.16 lbs (0.07 kg) |
| Color | Gray (two-tone) |
| Panels | Front and rear panels are an integral part of the bottom unit |
| Material | Polystyrene |
| Lid Finish | Smooth light gray (RAL 7035) |
| Bottom Finish | Smooth dark gray (RAL 7012) |
| Cover Fastening | Screws threaded into integrated brass inserts; screws hidden in a recess in the base |
| Internal Standoff Screws | Four M3 x 0.276" (7 mm) self-tapping screws |
| Cover Screw (Drawing Call-Out) | M3-0.5 x 14mm |
| Recommended Cover Screw Torque | 2.5 lbf-in (30 cN-m) |
| IP Rating | IP40 |
| Flame Rating | UL94 HB |
| Chemical Resistance Note | Some chemicals can damage or weaken plastic; see the manufacturer's Chemical Resistance Statement |
| RoHS Compliant | Yes |
| REACH Compliant | Yes |
Business account holders get access to exclusive pricing, volume discounts, and dedicated support. Create a free account to get started.
The MB105040 has a solid lid rated IP40; the MB105040VL has a ventilated lid rated IP20.
94 mm long, 44 mm wide and 33 mm deep.
2.5 lbf-in (30 cN-m).
UL94 HB.
Yes, solid models of this enclosure are available in STEP or IGES.

Hammond Manufacturing · 001100

Hammond Manufacturing · 001102

Hammond Manufacturing · 001104

Hammond Manufacturing · 001106

Hammond Manufacturing · 001111