Draw-Out Base
Base for draw-out equipment, allowing movement between connected, test and disconnected positions without removing the main wiring.
A draw-out base provides mechanical guidance and electrical interfaces for a draw-out device.
It allows the equipment to be withdrawn or moved to intermediate positions without dismantling the main power and control wiring.
Depending on the system, connected, test, disconnected and service positions may be available.
Selection criteria include device compatibility, pole count, current-carrying capability, type of main and secondary contacts, positioning mechanism and maintenance requirements.
Draw-out bases and chassis for withdrawable breakers and other power devices.
Draw-Out Base
General3
Commercial or technical designation of a manufacturer's product family sharing a common design and compatible characteristics.
Range of tasks and systems for which the manufacturer recommends the component.
Primary function of the device and its intended use as defined by its design and the manufacturer's documentation.
Dimensions4
External horizontal dimension of the product between its outermost lateral points.
External vertical dimension of the product from its lowest to its highest point.
External distance between the foremost and rearmost surfaces of the product.
Mass of the product itself, excluding transport packaging, additional accessories, and external equipment.
Materials and Finish3
Primary material from which the product is manufactured.
Primary visually perceived colour of the product's external surface.
Type of final surface finish of the product determining its appearance and service properties.
Mounting and Installation4
Installation arrangement permitted by the product design, such as wall-mounted, flush-mounted, floor-mounted, or another specified mounting type.
Method used to mechanically secure the product to a support, surface, or load-bearing structure.
Permissible spatial orientation of the component during installation and operation.
Position of the accessory relative to the host switching or protective device, independent of the general installation orientation.
Electrical Parameters5
Current assigned to the product by the manufacturer for the declared operating and thermal conditions.
Voltage value assigned to the product by the manufacturer for specified application conditions and characteristics.
Voltage with reference to which the product's insulation clearances and dielectric properties are specified.
Peak value of an impulse voltage of specified waveform that the product insulation must withstand without breakdown.
Declared number of mechanical operating cycles that the product can perform without electrical switching load.
Protection and Safety1
Degree of enclosure protection against access to hazardous parts and ingress of solid objects and water, designated by the IP code.
Environmental Conditions4
Minimum ambient temperature at which normal operation of the product is permitted.
Maximum ambient temperature at which normal operation of the product is permitted.
Minimum ambient temperature permitted during storage of the product while not in operation.
Maximum ambient temperature permitted during storage of the product while not in operation.
Special Features6
Set of mechanical positions supported by the withdrawable circuit breaker and its cradle or chassis.
Indicates whether a manual racking handle or crank for inserting and withdrawing the device is supplied with the product.
Indicates whether an interlock prevents impermissible or unsafe racking operations.
Indicates whether a local indicator shows the withdrawable part position, for example connected, test, or disconnected.
Indicates whether electrical contacts for signalling the position of the withdrawable part or cradle are supported.
Indicates whether withdrawable-position signalling contacts are supplied with the product.
Standards and Compliance3
Indicates whether the CE marking is applied to the product where applicable.
Indicates whether product compliance with applicable RoHS restrictions on hazardous substances has been declared.
Indicates whether the manufacturer declares compliance of the product with applicable REACH Regulation requirements.