Product Description:

The HP59A601 is an electromechanical timer assembled by Danaher within the Timers and Controllers series. The device combines a synchronous motor, magnetic clutch, and cam-actuated switch to insert preset delays into conveyors, ovens, or lighting circuits. When energized, it begins counting toward a user-set time and then changes the contact state, allowing machine sequences to be synchronized without software or microprocessors.

The front dial is marked in 10-minute increments, and the hand can be positioned anywhere between the minimum setting of 20 minutes and the upper limit of 10 hours. Once programmed, cycle-to-cycle variation is held to ±3 minutes, which is suitable for thermal soaking or batch mixing tasks that tolerate only minor drift. The mechanism resets in 0.5 seconds, permitting rapid restarts between consecutive operations. The electromagnetic assembly pulls in within 28 milliseconds and releases after 17 milliseconds, so contact transition timing remains tightly controlled. The motor has a continuous burden of 2.45 VA, while the clutch draws 10.5 VA during engagement. These relatively small electrical loads reduce demand on the low-voltage control transformer used to power the timer.

The switching element is rated for 10 A with a resistive load at 120 VAC, allowing it to drive heaters or solenoids directly on a nominal 120 V branch circuit. Electrical endurance reaches 250,000 operations, supporting repeated use in high-duty cycles. The timer remains functional from 0 °F up to a maximum temperature of 140 °F, covering the operating range of many industrial enclosures. Its total mass is 2 pounds 14 ounces, which limits the mechanical load placed on the mounting surface. The coil operates at 60 Hz, keeping each cam revolution synchronized with the supply frequency. This line-frequency operation provides consistent timing behavior in facilities that use a standard 60 Hz electrical supply.