Mersen, formerly Ferraz Shawmut UL 508 Catalog Page
UL 508 Non-Fusible
Disconnect Switches
UL 508 Non-Fused (M163 – M803)
The M-series Load Break Switch is the most compact industrial-grade switch on the
market. Capable of making or breaking loads up to 600V (UL), it is suitable as a motor
disconnect. Extremely compact and robust, these switches have a variety of mounting
options including DIN-rail, base, or door-mounting. A wide assortment of handles,
shafts and accessories is available to accommodate any installation requirement.
Highlights:
• Compact
• Robust
• DIN-rail, base, or door-mounting
• Choice of handles and shafts
• Padlockable
• Side-mount auxiliary contacts and
additional poles
• Double-break, silver-plated
contacts
Catalog Number Designation
Switch M = Mersen AC Switch
Applications:
• Line of sight disconnect
• Electrical isolation
• Branch-circuit switch
• Motor disconnect
M 80 3 __
Ratings UL:
Volts : 600VAC
Amps : 20, 30, 40, 63, and 80A
Suitable as motor
disconnect up to 40hp
Approvals:
• UL 508 listed E196672
• IEC 60947-3
Ampacity 16 to 80
Number of Poles
Special Configurations
DM = door-mo unting
K2
UL 508 Non-Fusible
Disconnect Switches
UL 508 Disconnect Switches—Front Operated
M163 M163DM M633 M633DM
Switch Body
Handles and Shafts
HD40
HSBX
HB65
SA105
SPA130
Accessories
4P40 4P80
Ampere Rating 20 30 40 63 80
Base Part # M163 M253 M403 M633 M803
Door-Mounted version M163DM M253DM M403DM M633DM M803DM
Direct Front Operation Locking Handle
HD40 HD40 HD40 HD125 HD125
External Front Operation
Selector Style NEMA Type 1, 3R, 12 HSBX, HSRX
Shaft—SAxxx (xxx = length in mm) SA85, SA105, SA120, SA130, SA180, SA250
Door mounted version (no shaft required) HSBPDM, HSRPDM HSBWDM, HSRWDM
Pistol Style NEMA Type 1, 3R, 12 HB45, HR45, HB65,HR65
NEMA Type 4, 4X HB45X, HR45X, HB65X, HR65X
Shaft— SAxxx (xxx = length in mm) SPA130, SPA210, SPA290, SPA360, SPA430
B = Black, R = Red
Fourth Poles
Limited to one additional pole per switch 4P40 4P40 4P40 4P80 4P80
K
Neutral Poles
Limited to one additional pole per switch NP40 NP40 NP40 NP80 NP80
Terminal Shrouds
3-pole TS40-3 TS40-3 TS40-3 TS63-3 TS63-3
4-pole (Add this to the 3-pole shroud) TS40-1 TS40-1 TS40-1 TS63-1 TS63-1
Auxiliary Contacts*
OA1G10
OA2G11
OA1G01
NC Right side mounting OA1G01 OA1G01 OA1G01 OA1G01 OA1G01
NO left side mounting OA1G10 OA1G10 OA1G10 OA1G10 OA1G10
NO+NC (Mounting on either side) OA2G11 OA2G11 OA2G11 OA2G11 OA2G11
*Rated 2A max continous @690VAC
For the most current product performance data visit ep.mersen.com and use catalog search. K3
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