Mechanical Safety Interlock Switches Specifications

Help with Mechanical Safety Interlock Switches specifications:

Interlock Switch Style

	Interlock Switch Style
	Your choices are...
	Keyed or Tongue Style Interlock Switch		Interlocks where the switching element and the actuator do not form a design unit but are functionally combined or separated during actuation. Interlock switches of this type are Category 2 devices.
	Hinge Operated Style Interlock Switch		Device is mounted over the hinge pin of a hinged guard. The opening of the guard is transmitted by the positive mode operation of the mechanism to the control circuit. Interlock switches of this type are Category 1 devices.
	Manually Operated (Bolt) Interlock Switch		Bolt must be manually retracted, providing time delay for machine run down. The bolt locks the guard in place and also operates the contacts. The first few turns of the bolt open the contacts but the locking bolt is not fully retracted until the knob is turned many more times.
	Search Logic:		All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.

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Switch Specifications

	Number of Normally Open Contacts:		Normally Open - A relay contact pair that is open when the coil is not energized.
	Search Logic:		All matching products will have a value greater than or equal to the specified value.
	Number of Normally Closed Contacts:		Normally Closed - A relay contact pair that is closed when the coil is not energized.
	Search Logic:		All matching products will have a value greater than or equal to the specified value.
	Number of Changeover Contacts:		Changeover, typically Form C (SPDT).
	Search Logic:		All matching products will have a value greater than or equal to the specified value.
	Positive Break Contacts?		Also called positive opening contacts. The contact point opens reliably and remains open in activated position even in the event of mechanical failure, such as breakage of a spring or contact welding.
	Search Logic:		"Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.

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Electrical Specifications

	Maximum Current
	Search Logic:		All matching products will have a value greater than or equal to the specified value.
	Maximum AC Voltage
	Search Logic:		All matching products will have a value greater than or equal to the specified value.
	Maximum DC Voltage
	Search Logic:		All matching products will have a value greater than or equal to the specified value.

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Pneumatic Switch Specifications

	Pressure Range:
	Search Logic:		User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.

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Hinge Operated Interlock Switch

	Shaft Style
	Your choices are...
	Bored Shaft		The actuator shaft is pre-bored, allowing the existing hinge pin to be used as the mounting point.
	Solid Shaft		The solid actuator shaft can be used as the hinge pin on certain types of guards.
	Search Logic:		All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.

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Keyed (Tongue) Actuated Interlock Switch Specifications

	Solenoid Latching (Guard Interlock)		Safety interlock device with solenoid latching to provide interlocking of the hazard power source with guard movement and also to prevent opening of the guard until it is safe to do so. They act in conjunction with the control to keep moveable safety guards in their safety position until dangerous conditions no longer exist.
	Search Logic:		"Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
	Solenoid Lock / Unlock
	Your choices are...
	Energized to Unlock		Unlock by applying voltage.
	Energized to Lock		Lock by applying voltage.
	Search Logic:		All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.

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Features

	Your choices are...
	Control Unit		Integral control unit for monitoring multiple switches.
	Emergency Override		Locking mechanism can be overridden in emergency situations by using either a tool or an override key.
	Explosion Proof
	Hermetically Sealed
	Manual Time Delay		Time delay is used to protect an area where the hazard remains for a time even after the machine control has been turned off.
	Multi-actuator Entry Points		The actuator head permits key entry from multiple directions. Allows for versatile installation, typically accomplished with a rotating head.
	Tamper Resistant		Protection against unauthorized adjustment or circumvention. Not easily bypassed.
	Visual Indicator		Contains an integral visual indicator such as an LED.
	Search Logic:		All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.

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Environment

	Operating Temperature		The temperature range over which the device must operate.
	Search Logic:		User may specify either, both, or neither of the limits in a "From - To" range; when both are specified, matching products will cover entire range. Products returned as matches will meet all specified criteria.

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