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- 442 Series - Conduit And Reset Limit Switches
442 Series - Conduit And Reset Limit Switches
442 Series - Conduit And Reset Limit Switches
The document describes the model number structure for the 442 series conduit and reset limit switches, highlighting variations with and without LED indicators. Model numbers are categorized by actuator type and additional features like reset capabilities.
The 442 series switches feature a zinc die-cast body and a glass-weave reinforced plastic head, offering excellent dust-proof and drip-proof capabilities. They are ideal for applications requiring precise position detection and control of conducting fluids. The switches are sealed with rubber packing for enhanced ingress protection. They operate within a temperature range of -5°C to +60°C, with a mechanical durability of 15,000,000 operations and electrical durability of 750,000 operations.
The document specifies load capacities for various models, including resistive, lamp, inductive, and motor loads. Detailed current and voltage ratings for both non-inductive and inductive loads are provided to ensure users select the appropriate model for their application.
Ordering information is available for various actuator types, such as roller plungers, pin plungers, and adjustable roller arms. The document specifies which models include LED indicators and reset features.
Safety precautions stress the importance of proper installation and handling to prevent electrical shock and ensure reliable operation. The document advises on the correct use of grounding terminals and adherence to CE marking standards.
Internal wiring poses risks of short-circuit, leakage current, or fire. It is crucial to protect the switch from oil, water, corrosive gases, and cutting powder. Incorrect assembly or inappropriate connectors can lead to malfunction or fire. Ensure cable ends are protected from oil, water, and corrosive gases.
Switch contacts can handle standard or microloads, but once used for a load, they cannot switch smaller loads effectively. Changing the head direction involves removing screws and ensuring no foreign material enters. The lever can be adjusted in 360° at 7.5° increments, and its length can be changed by loosening screws.
Use Allen-head nuts or SC Connectors for high-sealing properties. Refer to Limit Switch Connectors for details.
Seal material may deteriorate outdoors or with exposure to certain chemicals. Install switches away from cutting chips, dust, or dirt. Avoid environments with excessive vibration or silicon gas, which can cause contact interference.
Use M4 screws and spring washers for mounting, ensuring they are tightened to specified torque. For wiring, use 1.25-mm2 lead wires and M4-insulation covered crimp terminals.
WERNER provides a one-year warranty against defects in materials and workmanship. They are not responsible for special, indirect, or consequential damages. Ensure products are properly rated and installed.
Product specifications may change without notice. Consult a WERNER representative for clarifications. WERNER is not responsible for errors in the catalog.
Catalog excerpts
Inventing Innovation... PRODUCT SPECIFICATION Conduit And Reset Limit
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Conduit And Reset Limit Switches Conduit And Reset Limit Switches
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Conduit And Reset Limit Switches General Purpose Limit Switches WERNER'S 442 series Conduit & Reset limit switches have a sturdy construction comparable to any limit switch. It uses a zinc die-cast body, a glass-weave reinforced plastic head, and a cover. The terminal cover also boasts excellent dust-proof and drip-proof capabilities. Features Overview Sturdy construction comparable to any limit switch. Provides excellent dust-proof and drip-proof capabilities. Zinc die-cast body, glass-weave reinforced plastic head & cover. Highlights Highly accurate position detection is possible in these limit...
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Conduit And Reset Limit Switches Model Number Selection Model Number Roller Plunger Sealed Roller Plunger Nylon Roller Lever One Way Nylon Roller Lever Roller Lever (Vertical) Conduit And Reset Limit Switches
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Conduit And Reset Limit Switches Model Number Selection Model Number Roller Lever (Horizontal) Coil Spring Wire Spring Wire Roller Lever with 50mm Ø rubber roller Adjustable Roller Lever with 50mm Ø rubber roller Extended Adjustable Roller Lever with 50mm Ø rubber roller Conduit And Reset Limit Switches
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Conduit And Reset Limit Switches Model Number Selection Model Number Roller Plunger With Chuck Nut Pin Plunger With Chuck Nut Model Number Selection With Reset Model Number Appearance With Reset Roller Plunger Nylon Roller Lever Conduit And Reset Limit Switches
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Conduit And Reset Limit Switches Model Number Selection Model Number Appearance With Reset One Way Nylon Roller Lever Roller Lever (Horizontal) Coil Spring Wire Spring Wire Roller Lever with 50mm Ø rubber roller Roller Lever (Vertical) Conduit And Reset Limit Switches
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Conduit And Reset Limit Switches Model Number Selection Model Number Appearance With Reset Adjustable Roller Lever with 50mm Ø rubber roller Extended Adjustable Roller Lever with 50mm Ø rubber roller Roller Plunger With Chuck Nut Pin Plunger With Chuck Nut Conduit And Reset Limit Switches
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Conduit And Reset Limit Switches Model Number Structure 442.00.24.00.00 Series Contact Block 442 Series Conduit And Reset Limit Switches Nylon Pin Plunger Roller Plunger Sealed Roller Plunger Roller Arm Adjustable Roller Arm Nylon Roller Lever One Way Nylon Roller Lever Roller Lever (Vertical) Roller Lever (Horizontal) Adjustable Rod Plastic Rod (Point) Coil Spring Wire Spring Wire Adjustable Roller Lever with 50mm Ø rubber roller 03-1NO/1NC Slow Action (Overlapping) 04-2NC Slow Action 05-2NO Slow Action 06-3NC Slow Action 07-3NO Slow Action 08-2NC/1NO Slow Action (Changeover) 09-2NC/2NO Slow...
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Conduit And Reset Limit Switches Technical Data Approvals Economical, Safety Limit Switch Boasting Rigid Construction Approbations and Declaration of conformity UL CE RoHS CCC Demko • Easy-to-wire conduit opening design. • Cover, Box, and the Head mate with ridged surfaces to maintain strength. • A unique Head structure provides a large OT for smooth operation • Models with grounding terminals conform to the CE marking. • Approved by CCC. • Ideal for application in forming machines, light machines and printing machines. Between terminals of the same polarity Between currentDielectric carrying...
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Conduit And Reset Limit Switches Contact Ratings Resistive load Inductive load Motor load Basic models, overtravel models (except for high sensitivity models), and high-precision models High-sensitivity overtravel models Note:- 1.The above figures are for steady-state current. 2.Inductive loads have power factor of 0.4min (AC) and a time constant of 7 ms max. (DC). 3.A lamp load has an inrush current of 10 times steady-state current. 4.A motor load has inrush current of 6 times the steady-state current. 5.For PC loads, use the microload models. Inrush current Lamp load Note:- As an example, AC-15:2...
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Conduit And Reset Limit Switches Ordering Information Roller Plunger Coil Spring Wire Roller Lever with 50mm Ø rubber roller Adjustable Roller Lever with 50mm Ø rubber roller Extended Adjustable Roller Lever with 50mm Ø rubber roller Roller Plunger with Chuck Nut Pin Plunger With Chuck Nut Sealed roller plunger (Horizontal) ● Available in sealed models. Short lever One-Horizontal operation possible. Head mounts in any of 4 directions. One-Horizontal operation possible. Head mounts in any of 4 directions. Roller Arm (Vertical) Roller Arm (Horizontal) One-Horizontal operation possible. Head mounts...
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Conduit And Reset Limit Switches Ordering Information Actuator With Reset Roller Plunger Coil Spring Wire Roller Lever with 50mm Ø rubber roller Adjustable Roller Lever with 50mm Ø rubber roller Extended Adjustable Roller Lever with 50mm Ø rubber roller Roller Plunger with Chuck Nut Pin Plunger With Chuck Nut Short lever One-Horizontal operation possible. Head mounts in any of 4 directions. One-Horizontal operation possible. Head mounts in any of 4 directions. One-Horizontal operation possible. Head mounts in any of 4 directions. One-Horizontal operation not possible. Head mounts in any of 4...
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Conduit And Reset Limit Switches Contact Block 02 03 1NO/1NC Slow Action 1NO/1NC Slow Action (Changeover) (Overlapping) 08 09 10 11 2NC/1NO Slow Action 1NC/2NO Slow Action 1NC/2NO Slow Action 1NC/2NO Slow Action (Changeover) (Overlapping) (Changeover) (Overlapping) Conduit And Reset Limit Switches
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Conduit And Reset Limit Switches Dimensions and Operating Properties Nylon Pin Plunger Front Elevation Side Elevation Actuator Without LED With LED Front Elevation Side Elevation Actuator Without LED With LED Conduit And Reset Limit Switches
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Conduit And Reset Limit Switches Dimensions and Operating Properties Sealed Roller Plunger Front Elevation Side Elevation Actuator Without LED With LED Sealed Roller Plunger 442.00.16.00. Front Elevation Side Elevation Actuator Without LED With LED Conduit And Reset Limit Switches
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