*mydirectindustry

Catalogs
Ohmite
Rheostats (Potentiometers) Wirewound

Rheostats (Potentiometers) Wirewound

Product catalog summary

Overview: This document provides technical specifications and ordering information for Ohmite's wirewound rheostats and potentiometers. It includes details on various models, their electrical and mechanical characteristics, and mounting instructions.

Specifications:

Model Types: Various models including C, E, H, J, G, K, L, P, N, R, U with power ratings ranging from 7.5W to 1000W.
Ohmic Range: Models cover a range from 0.5Ω to 50KΩ.
Voltage Rating: Dependent on resistance value, with maximum RMS voltage specified for each model.
Mechanical Dimensions: Detailed dimensions for shaft, core, and mounting are provided for each model.
Torque and Rotation: Shaft rotation is typically 300° with specified torque values.

Mounting Instructions:

Panels can be mounted with specified thickness and bushing sizes, using hex nuts or flat-head screws depending on the model.
Specific instructions are provided for models with different mounting requirements.

Standards and Compliance:

Models H, J, K, L, and N are UL and CSA listed.
RoHS compliant products are available, indicated by an 'E' suffix in the part number.

Ordering Information:

Part numbers are structured to indicate wattage, model, shaft type, and core type.
Custom rheostats can be ordered by contacting Ohmite sales offices.

Additional Notes:

All rheostats have a 10% tolerance and are subject to mechanical wear.
Silicone-ceramic coating is applied to certain models at specified ohmic values.

Catalog excerpts

Model Type Watts Ohmic range Core 10.0-5K enclosed Max. Voltage Behind panel “B" (RMS)* (in./mm Ref.) 305 0.875/22.23 • See Catalog #203 for complete details. MODEL E Max. Ohmic Voltage Behind panel “B" Diameter “D" Dimension “C" Shaft Rotation Model Type Watts range Core (RMS)* (in./mm Ref.) (in./mm Ref.) (in./mm Ref.) torque (±5°) • See Catalog #203 for complete details. Mounting: Panels to 0.125" (3.18mm) thick with 1/4-32 bushing and hex nut (1/i6" thick). shaft locking nut Dimensions for reference only; consult factory for details. Since all rheostats/potentiometers are electro-mechanical devices, they are subject to mechanical wear and, therefore, have a finite life. Models H, J, K, L and N are listed under UL File No. E-10946 and CSA File No. 21309 unless noted otherwise. 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite

Open the catalog to page 1

Max. Ohmic Voltage Behind panel “B" Diameter “D" Dimension “C" Shaft Rotation Model Type Watts range Core (RMS)* (in./mm Ref.) (in./mm Ref.) (in./mm Ref.) torque (±5°) • Models H, J, G, and K also available in enclosed versions. • See Catalog #203 for complete details. holes for: no. 2 screws (model H) no. 8 screws (J, G, K, L) Mounting: Panels to 0.25" (6.35mm) thick with %-32 bushing and hex nut (%2" thick) (or with 10-32 x 0.75 flat-head screws for model L only). Max. Ohmic Voltage Behind panel “B" Diameter “D" Dimension “C" Model Type Watts range Core (RMS)* (in./mm Ref.) (in./mm Ref.)...

Open the catalog to page 2

ORDERING INFORMATiON Code Watts Model Shaft Core Locking Enclosed Standard Enclosed Standard Enclosed Locking Open Standard Open Standard Open Locking Open Standard Open Standard Open Standard Open Standard Open Standard Open Standard Open Standard Open Standard Open Series Rheostats Wirewound Potentiometers i i *Check table for standard resistance values and maximum current values RoHS compliant product available. Add “E" suffix to part number to specify. Made-to-order rheostats available: Contact nearest Ohmite sales office. Voltage rating dependent on resistance value.

Open the catalog to page 3

All Ohmite catalogs and technical brochures

Archived catalogs

Ohmite Catalog Revised October 26, 2011
118 Pages
General catalog
101 Pages