70
ACTUAL SIZE
www.southco.com/M1A
Frame
Door
Max. R 3.2 (.13)
Optional panel prep
Short cam 48±1.5
(1.88±0.06)
Long cam 60±1.5
(2.38±0.06)
Optional cut out
27±0.5
(1.06±0.02)
14.5± 0.5
(.57±0.02)
Ø 50.8 ±0.5
(2.00±0.02)
Door thickness
(see part number selection)
61.5
(2.42)
Handle up
Straight cam
56.6 (2.23)
4 (.16)
Compression
M5 Screws(2)
30
(1.18)
3.5 (.14)
Mounting
bracket
Non-locking
Long cam
Offset cam
reversed
Deep offset
cam reversed
70 (2.72) Gasket
61.5 (2.41)
Locking
Jam nuts
(see table)
Note
All grips of 35 (1.38) or below, highlighted in , in the table above, are potentially a function of door thickness and may not always be achievable,
depending on actual door thickness used. In this range of grips, the minimum achievable grip will be limited to actual door thickness + grip
adjustment value, or the minimum values shown in the table, whichever is greater.
Examples:
For a door thickness of 4 mm, the minimum achievable grip is 23 and is achieved with a deep offset cam in the forward position. (4 + 19 = 23)
For a door thickness of 20 mm, the minimum achievable grip is 29 and is achieved with an offset cam in the forward position. (20 + 9 = 29)
Dimensions in millimeters (inch) unless otherwise stated
L Lock style
3 Non-locking
8 Locking (2 keys supplied)
9 Key-locking keyed alike
S008 (2 overmolded keys
supplied)
• Consistent pre-set
compression
• Easy grip adjustment
• Flush round hole install
Material and Finish
Cast 316 grade stainless steel
Performance Details
Short cam
Max. static load: 460 N (103 lbf)
Long cam
Max. static load: 350 N (78 lbf)
Sealing Notes
NEMA 4/IP-66 sealing is achieved
by using supplied flange gasket
Keys
Lock style 8
Part number: M1-546
Lock style 9
Part number: M1-525-39-S008
Part Number Selection
See page 151 for complimentary
styled push to close version
M1 20 Series Compression Latch
Medium · Cast 316 stainless steel · Lift & turn · Adjustable grip
M1 - 20 - L D - G 8
G Grip Range
Short cam
521 - 28 (.83 - 1.10) Deep offset forward
427 - 40 (1.06 - 1.57) Offset forward
339 - 52 (2.01 - 2.52) Straight
451 - 64 (2.01 - 2.52) Offset reversed
563 - 76 (2.48 - 3.00) Deep offset reversed
Long cam
821 - 28 (.83 - 1.10) Deep offset forward
727 - 40 (1.06 - 1.57) Offset forward
639 - 52 (2.01 - 2.52) Straight
751 - 64 (2.01 - 2.52) Offset reversed
863 - 76 (2.48 - 3.00) Deep offset reversed
D Door Thickness Grip Adjustment Value
12 - 12 (.075 - .475) 19 (.75)
212 - 22.5 (.475 - .885) 9 (.35)
318.5 - 29 (.73 - 1.14) 2.5 (.10)
71
ACTUAL SIZE
www.southco.com/M1A
Frame
Door
Max. R 3.2 (.13)
Optional panel prep
Short Cam 40±1.5
(1.57±0.06)
Long Cam 75±5
(2.95±0.2)
Optional cut out
30.6±0.5
(1.20±0.02)
16±0.5
(.63±0.02)
Ø 63.5±0.5
(2.50±0.02)
71
(2.80)
Handle up
49.5 (1.95)
5 (.2)
Compression
M5 screws(2)
37
(1.46)
3.5 (.14)
Mounting
bracket
89 (3.5) Gasket
76 (3.0)
Jam nuts
Straight cam
Long cam
Offset cam
reversed
Deep offset
cam reversed
Door thickness
(see part number selection)
(see table)
Non-locking
Locking
Note
All grips of 33.5 (1.32) or below, highlighted in , in the table above, are potentially a function of door thickness and may not always be
achievable, depending on actual door thickness used. In this range of grips, the minimum achievable grip will be limited to actual door thickness +
grip adjustment value, or the minimum values shown in the table, whichever is greater.
Examples:
For a door thickness of 4 mm, the minimum achievable grip is 25.5 and is achieved with a deep offset cam in the forward position. (4 + 21.5 = 25.5)
For a door thickness of 20 mm, the minimum achievable grip is 31.5 and is achieved with a deep offset cam in the forward position. (20 + 11.5 = 31.5)
Dimensions in millimeters (inch) unless otherwise stated
D Door Thickness Grip Adjustment Value
12 - 12 (.075 - .475) 21.5 (.85)
212 - 22.5 (.475 - .885) 11.5 (.45)
318.5 - 29 (.73 - 1.14) 4 (.12)
M1 25 Series Compression Latch
Large · Cast 316 stainless steel · Lift & turn · Adjustable grip
L Lock style
3 Non-locking
8 Locking (2 keys supplied)
9 Key-locking keyed
alike S008 (2 overmolded
keys supplied)
Consistent pre-set •
compression
Easy grip adjustment •
Material and Finish
Stainless steel cast 316 grade
Performance Details
Short cam
Max. static load: 1010 N (227 lbf)
Long cam
Max. static load: 350 N (78 lbf)
Sealing Notes
NEMA 4/IP-66 sealing is achieved
by using supplied flange gasket
Keys
Lock style 8
Part number: M1-546
Lock style 9
Part number: M1-525-39-S008
M1 - 25 - L D - G 8
Part Number Selection
See page 152 for complimentary
styled push to close version
G Grip Range
Short cam
523.5 - 35 (.92 - 1.38) Deep offset forward
434 - 48 (1.34 - 1.89) Offset forward
347 - 61 (1.85 - 2.40) Straight
460 - 75 (2.36 - 2.95) Offset reversed
574 - 88 (2.91 - 3.47) Deep offset reversed
Long cam
823.5 - 35 (.92 - 1.38) Deep offset forward
734 - 48 (1.34 - 1.89) Offset forward
647 - 61 (1.85 - 2.40) Straight
760 - 75 (2.36 - 2.95) Offset reversed
874 - 88 (2.91 - 3.47) Deep offset reversed
