Point Of Operation (OSHA 29CRF1910.211(d))

The area of the press where material is actually positioned and work is being performed during any process such as shearing, punching, forming, or assembling.

Pole (NEMA ICS 1-100.2)

A combination of mating contacts that are normally open, or normally closed, or both.

Positive Break  

The switch is designed so that the N.C.( Normally closed contact) has a positive mechanical linkage to the operator arm which forces the N.C. contact open. Even if a spring fails, or the N.C. contact hangs up, the mechanical linkage forces the N.C. contact open. Even if the N.C.. contact sticks or welds-in, the mechanical linkage forces the N.C.. contact open.

Repeat (OSHA 29CFR1910.211(d))

An Unintended or unexpected successive stroke of the press resulting from a malfunction.

Reset (NEMA ICS 1-100.2)

To restore a mechanism, storage, or device to a prescribed state.

Saftey Block (OSHA 29CFR1910.211(d))

A prop that, when inserted between the upper and lower dies or between the bolster plate and the face of the slide, prevents the slide from falling of its own deadweight.

Slow Make - Slow Break

The rate of change (time and speed) of a contact set moving from one position to another that is dependent upon the operator, that is, if the operator moves slowly then the contacts are transferred slowly. Teasing is possible.

Snap Action (NEMA ICS 1-100.2)

A rapid motion of the contacts from one position to another position, or their return. This action is relatively independent of the rate of travel of the actuator.

Stop Control (OSHA 29CFR1910.211(d))

An operator control designed to immediately deactivate the clutch control and activate the brake to stop slide motion.

Switch (UL 508)

A device installed to automatically shut off the power supply when the hoisting cable becomes slack or has slack due to accident or jamming.

Switch (Slack Cable) (ASME B20.1b)

A device installed to automatically shut off the power supply when the hoisting cable becomes slack or has slack due to accident or jamming.

Tagout Device (OSHA 29CFR1910.147 (b))

A prominent warning device, such as a tag and a means of attachment, which can be securely fastened to an energy isolating device in accordance with an established procedure, to indicate that the energy isolating device and the equipment being controlled may not be operated until the ragout device is removed.

Two Hand Control Device (OSHA 29CFR1910.211 (d))

A two Hand trip that further requires concurrent pressure from both hands of the operator during a substantial part of the die-closing portion of the stroke of the press.

Two Hand Trip (OSHA 29CFR1910.211(d))

A clutch actuating means requiring the concurrent use of both hands of the operator to trip the press.

Voltage, Extra-Low (can. Elec. Code, Part I;Sec. 0)

Any voltage up to and including 30V.

Voltage, Low (Canadian Elec. Code, Part I; Sec. 0)

Any voltage from 31 to 750 V. inclusive.

Voltage, Low (UL 491)

A circuit involving a potential of not more than 30 volts AC and supplied by a primary battery or by a standard Class 2 transformer, or by a combination of the transformer and fixed impedance which, as a unit, complies with all the performance requirements for a Class 2 transformer.

Voltage, High (UL 491)

A circuit involving a potential of not more than 600 volts and having characteristics in excess of those of a low-voltage or an isolated limited secondary circuit.

Watertight (OSHA 29CFR1910.211(d))

Constructed so that moisture will not enter the enclosure.

Weatherproof (OSHA 29CFR1910.211(d))

Constructed or protected so that exposure to the weather will not interfere with successful operation. Rainproof, raintight, or watertight equipment can fulfill the requirements for weatherproof where varying weather conditions other than wetness, such as snow, ice, dust, or temperature extremes are not a factor.