Richmond, Va. Weidmuller has launched a new generation of terminal blocks that the company claims to provide innovative wiring concepts and low assembly costs. Dubbed the Weidmuller Connection System (WeiCoS), it combines both terminal block and plug-in connection technology that results in a modular, functionally flexible, and manufacturer-independent wiring system.
The standardized units of the WeiCoS line minimize downtime and reduce final assembly time, said the company, and is equipped on one side with a tension clamp connection system and on the other with connections for one or two plug-in connectors. Prefabricated functional units such as lamps or door controls, mounting plates and switchgear panels can be easily connected to the existing installation by plugging the connector onto the terminal. An externally tensioned contact and locking element guarantee a shock and vibration-proof connection of the plug-in connector with the terminal block.
Terminals ZT 2.5/4AN/4 and ZTPE 2.5/4AN/4 are equipped to connect a total of four plug-in connectors (two on each side). This allows central connection points to be built up along a length of 85 mm for extremely fast wiring. These types of terminals have been designed to allow for straightforward plugging, which means the plug-in direction of all four connectors is the same. A user only needs to ensure the correct order of the connections unlike other systems where there are considerations for which side of the terminal the connector will be plugged into. This is beneficial when pre-assembling the connectors, said the company, and reduces planning time and installation costs.
Depending on the version, the new vibration-proof terminals can be connected quickly with one or two solid or stranded conductors from 0.5 mm² up to 4 mm² (AWG 26 to 12). The high contact force of the tension clamp system guarantees that the wire is securely connected. The wire connection in the TOP version, where wire insertion and spring operation are carried out parallel to one another, has been designed to ensure the user can connect stranded connectors with ferrules, with or without plastic collars, from 0.5 to 2.5 mm². The rated current is 20 amps, and the voltage rating is 300 V.
Three plug-in connectors are available in one- to sixteen-pole configurations. All three configurations can be plugged and coded without loss of pole. End plates are not required. The tension clamp system is also incorporated into pluggable connectors to reduce additional installation time. The solid and stranded connectors are connected directly. Ferrules, with or without plastic collars are not required, however they can be used up to 2.5 mm² without difficulty, said the company.
Both the base terminal and the pluggable connectors can be marked with standard markers that remain legible even when the connectors are plugged and completely wired, making maintenance and troubleshooting much easier.
WeiCoS terminals and plug-in connectors are made of WEMID, a special thermoplastic insulation material produced by Weidmuller, with enhanced continuous operating temperature of 120°C.
A variety of accessories are available including additional locking elements, coding elements, strain relief devices and test adapters.
List price for base terminals is $.93 for feed through and $1.50 for branch. Pricing for plugs range from $1.17 for a single-pole version up to $11.96 for a 15-pole model.
Call (800) 849-9343