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Ohmite RKS300E Wirewound Rheostat
The OHMITE RKS300E is a wirewound rheostat, a type of variable resistor used for controlling electrical power. These rheostats are designed for industrial applications requiring precise and reliable control. They feature a robust construction and are subject to mechanical wear, indicating a finite lifespan. Models H, J, K, L, and N are listed under UL File No. E-10946 and CSA File No. 21309. All rheostats have a 10% tolerance.
Authorized Distributors
Source:Mouser Electronics
Part No:RKS300E
Stock:0
Inv Date:06-02-2026
Price: Unit price: $453.92
Buy/RFQ:
Source:Master Electronics
Part No:RKS300E
Stock:6
Inv Date:06-01-2026
Price: Unit price: $526.68
Buy/RFQ:
Source:Onlinecomponents.com
Part No:RKS300E
Stock:6
Inv Date:06-01-2026
Price: Unit price: $526.68
Buy/RFQ:
Ohmite RKS300E Wirewound Rheostat Specifications:
- ohmic_voltage: 10.0-5K
- watts_range: 7.5
- core_rms: 305
- diameter_d_in_mm: 0.875/22.23
- dimension_c_in_mm: 0.515/13.08
- shaft_rotation: —
- torque_oz_in: 0.25-3
- max_temp: 300°
- model_type: RCS/RCL
- ohmic_voltage_behind_panel_b: 1.0-15K
- open_enclosed: enclosed
- diameter_d_in_mm_2: 0.688/17.46
- dimension_c_in_mm_2: 0.875/22.23
- shaft_rotation_2: 1-6 oz. in.
- max_temp_2: 300°
- model_type_2: E RES/REL
- watts_range_2: 12.5
- ohmic_voltage_behind_panel_b_2: 1.0-15K
- open_enclosed_2: enclosed
- diameter_d_in_mm_3: 1.219/30.96
- dimension_c_in_mm_3: 1.047/26.59
- shaft_rotation_3: 1-6 oz. in.
- max_temp_3: 300°
- model_type_3: E REE
- watts_range_3: 12.5
- ohmic_voltage_behind_panel_b_3: 1.0-15K
- open_enclosed_3: enclosed
- shaft_rotation_4: 0.25-0.5 lb. in.
- model_type_4: H RHS/RHL
- watts_range_4: 25
- core_rms_4: 500
- diameter_d_in_mm_4: 1.375/34.93
- dimension_c_in_mm_4: 1.560/39.62
- shaft_rotation_5: 0.25-2 lb. in.
- model_type_5: J RJS
- watts_range_5: 50
- core_rms_5: 750
- shaft_rotation_6: 0.5-2 lb. in.
- model_type_6: G RGS
- watts_range_6: 75
- core_rms_6: 900
- shaft_rotation_7: 0.5-2 lb. in.
- model_type_7: K RKS
- watts_range_7: 100
- core_rms_7: 1000
- shaft_rotation_8: 0.5-3 lb. in.
- model_type_8: L RLS
- watts_range_8: 150
- core_rms_8: 1200
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Frequently Asked Questions
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You can download the RKS300E datasheet or visit the Ohmite website for support.
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