M520 Electromechanical Timer

Minimum Order Size: 100

metal electromechanical timers

The Model 520 program timer has multi-connection plug-on termination for quick wiring hook-up. Up to 16 single-pole, single-throw (SPST) or single-pole, double-throw (SPDT) 15 ampere, 1/2 HP switches are available. Two sub-interval circuits, one isolated, are optional. A shaft-operated line switch, with an optional ramping feature to reset, is also available. Other options include a positive shaft-setting stop, shaft detent, rapid-advance motorized shaft indexing, delayed start and a variety of drive systems ranging from constant speed to the MTS Variflex incremental advance drive for the most complex application requirements. The Model 520 electromechanical timer has versatile applications such as domestic washers and dryers and commercial laundry.  

Why electromechanical timers?

Midwest Timer proudly manufactures electromechanical timers and other electromechanical devices . Electromechanical timers offer many advantages over electric timers. Electromechanical timers are less susceptible to power issues such as brown outs, power spikes or lightning strikes. Electromechanical timers are all around much more reliable than electric timers which can break easily. The Model 520 electromechanical timer featured on this page is popular for laboratory equipment applications but it also has a number of other uses.

M520 Specifications 
 Switches 15 amp, 1/2 HP, 125/250 VAC.
 Terminals Multi-connection plug-on utilizing .125" (3.175) male spade terminals.
Time Ranges 15 minutes to 3 hours cycle time with up to 6 hours of "delay" time.

Permanent magnet, 24 VAC, 115 VAC or 230 VAC nominal voltage inputs at 50 Hz, 60 Hz or 50/60 Hz. Motor leads 4" (101.6) long with .187" (4.75) strip standard. Quick connect terminals optional.

Shaft Rotation


Shaft Extensions

.250" (6.35) x 1" (25.4) standard. Others available. 


Several standard designs available.

Agency Listings UL recognized and CSA certified.
Applications Commercial laundry, laboratory cleaning equipment, dairy equipment, domestic clothes washers and dishwashers. 

Minimum Order Size 100 timers