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MEAN WELL LRS-350-12 power supply (case 207A): 215 × 115 × 30 case and M4 mounting holes

What are the MEAN WELL LRS-350-12 dimensions and mounting-hole positions? · Modern device · basis: MEAN WELL LRS-350 series specification, Mechanical Specification for case No. 207A.

Also called: LRS-350-12, MEAN WELL LRS-350, Meanwell LRS-350-12, LRS-350 case 207A, LRS-350 dimensions, 12 V 29 A power supply, LRS-350-24

Exact dimensions. Every file is drawn at true size with no tolerance added. The holes and pins that meet another part are listed below under Mating features, with the fit each joint needs; open those by your process's clearance before making the part. Mating features

length
215.0 mm
width
115.0 mm
height
30.0 mm

Notes

  • Datum: case centre; terminal-block end at −x, bottom at 0. Case 215.0 × 115.0 × 30.0 (case 207A, shared by the LRS-350 series).
  • Bottom: 4 × M4 threaded holes, 3 mm thread length, on a 150.0 × 50.0 pattern centred on the case (32.5 from each end and each long edge).
  • Sides: 2 × M4 threaded holes in each long side, 5 mm thread length, 150.0 apart, 12.5 above the bottom. All M4 holes are modelled at the Ø3.3 tap-drill size.
  • The 9-position screw terminal (AC/L, AC/N, FG, 3 × −V, 3 × +V) sits recessed in the top of the −x end; the fan sits under a flush grille in the top, centred 47.45 from the +x end and 36.7 from the +y edge; air enters through the top.
  • Not modelled: terminal block, fan grille and vent slots (all inside or flush with the case), optional mounting brackets.
  • Dimensions are exact nominal (true size), no tolerance added.

MEAN WELL LRS-350-12 power supply (case 207A): 215 × 115 × 30 case… size chart

holesfacepositions from case centre (mm)thread
4bottomx ±75.0, y ±25.0M4, 3 mm deep
2−y sidex ±75.0, 12.5 above bottomM4, 5 mm deep
2+y sidex ±75.0, 12.5 above bottomM4, 5 mm deep

Mating features

Drawn at the exact size. Open press, slide, run and socket features by your process's clearance (tolerances by process); leave designed gaps and clamp fits as drawn.

featureexactmates withfitfiles
bottom M4 holes4 × M4 on 150.0 × 50.0, 3 mm threadM4 screws through the mounting plate; screw may enter at most 3 mmdesignedall
side M4 holes2 × M4 per side, 150.0 apart, 12.5 up, 5 mm threadM4 screws through an L-bracket or side wall; at most 5 mm into the casedesignedall

Where the files are

Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.

MEAN WELLLRS-350 series specificationwebPublisher's page; dimensions are facts
MEAN WELLLRS-350 product datasheetwebPublisher's page; dimensions are facts

Free files

★ Free files 1 parts. Generated by Xem Studio from the standard; threads are plain cylinders at major diameter. CC BY 4.0. index.json

meanwell-lrs-350-12MEAN WELL LRS-350-12 power supply (case 207A): 215 × 115 × 30 case and M4 mounting holesSTEP · STL
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Plain text: sheet.txt · JSON: /api/geometry?object=meanwell-lrs-350-12

MEAN WELL LRS-350-12 power supply (case 207A): 215 × 115 × 30 case and M4 mounting holes, isometric render of a generated part
Render of meanwell-lrs-350-12 from the free STEP; not to scale.

Fits with

Socket head cap screws, M2–M8 (ISO 4762 / DIN 912), isometric render of a generated part
Socket head cap screws, M2–M8 (ISO 4762 / DIN 912)7 sizes★ 47 files
Metric machine screws M1.6–M10: pan head ISO 7045 (cross) / ISO 1580 (slotted), cheese head ISO 1207, countersunk ISO 7046-1 — head sizes, recess sizes + models, isometric render of a generated part
Metric machine screws M1.6–M10: pan head ISO 7045 (cross) / ISO 1580 (slotted), cheese head ISO 1207, countersunk ISO 7046-1 — head sizes, recess sizes + models37.5×20.0×37.5 mm★ 36 files
Metric wire sizes (IEC 60228): 0.5 to 2500 mm² with strands and conductor diameter, and the nearest AWG34 sizes★ sheet
Axial fans, 25 to 140 mm: frames and hole patterns, isometric render of a generated part
Axial fans, 25 to 140 mm: frames and hole patterns10 sizes★ 12 files
Thread size reference: UNC / UNF and ISO metric coarse / fine — major, minor and pitch diameter, tap drill, clearance hole (close, normal, loose)201 sizes★ sheet

Questions

How big is the LRS-350-12?

215 × 115 × 30 mm (case 207A).

What is the bottom mounting-hole pattern?

Four M4 holes on 150 × 50 mm, centred on the case; thread length 3 mm, so the screw may enter at most 3 mm.

Can it be side-mounted?

Yes: two M4 holes in each long side, 150 mm apart and 12.5 mm above the bottom, 5 mm thread length.