240C Resistance Decade Box Datasheet by Honeywell Sensing and Productivity Solutions

Model NDL’ Power Resistor Decade Box Description The 240C is a must in electronic and electrical work when dealing with known or unknown resistances...selected or determined under active operational conditions. The Power Resistor Decade Box provides a power resistor for any required ohmage from 1 to 999.999 ohms in 1 ohm increments. The ohmage is selected or detenmned by six front panel dials. and the value is read directlyein sequence—from the dials, thereby simplifying the selection of known or unknown resistances for use in working circuits. Bench-top design. Model 240C has been standard equipment in laboratories, engineering departments. plants. for mnintennnce and service personnel, schools and other users requiring accurate resistance determination under load Conditions. Features sI’Iovides any ohmugc value, in 1-011»: increments, from I to 999,999 ohms. -Duermr‘nes known or unknown resistance values by simply dialing. -Puwer ratings to 225 watts maximum at 1000 volts maximum. tsr: decades for quick setting and direct readout. 'Used in actual circuits and under “live” conditions. -Two sets of terminaLt taking banana-plug, spade-lug or plain wire connections. Model 24 ecade Box Electrical Specifications Resistance Range )9 to 9999999 in 1!} increments; no opcn circuit between steps. six dials, respectively x71. x710.x7100. x. 1K, X. 10K and X-lOOK, total up any ohmage within range. Positive detent action clicks in and holds each knob at the selected setting. Resistance Tolerance Decade No.1: :5% Decade No.2: i2% Decade No.3‘ 12% Decade No.4 12% Decade No.5. 12% Decade No.6: 12% Power Rating Dissipates up to 225 watts maximum or 1000 volts DC or 660 volts AC. maximum per decade. Grilled bottom. plus louvered sides and top provtde adequate ventilation. Glass insulated wire withstands elevated temperatures. Baffle plate protects the switch assembly from heat. Maximum Current Ratings Decade No.1: 5.0 amp Decade No.2 1.5 amp Decade No.3: 0.5 amp Decade No.4' 0.15 amp Decade Nn 005 amp Decade No.6: 0.005 amp Resislona’ Elements Clarostat Power Resistors are used throughout. These components are wire-wound power resistors on ceramic tubes and vitreous coated. providing the most rugged. long»lasting. troublerfree power resistor available. The resistors are mounted in rigid metal supports.

Finn l Model 24°C Mndel 2406 Repair Parls LlSl Model 2406 How Tu Order Part No Descripn‘un 240C = Part Number 01206301 Mounting Bracket 01209701 Dial Panel 01266401 Binding P051 (Redl 01266402 Binding P051 (Black) 01270601 lOrPosilion Rotary Switch 01522401 Decade Box Chassis 01522501 Decade Box Cover 01615101 Pointer Knob 25238201 Resislor Bank Assembly (Range 1) 25238202 Resil or Bank Assembly (Range 2) 25238203 Resistor Bank Assembly (Range 3) 25238204 Resistor Bank Assembly (Range 4) 25238205 Resistor Bank Assembly (Range 5) 25238206 Resistor Bank Assembly (Range 6} Norm Swilrh ram) shnwn in cxlreme coumer-clackwise paxilionfar 22m resisram'c 2nd & 3rd 566110" rotors break (nu/act lie/are I :1 sectilm romr: make: it: roman. Conmrl I'acloryfar pricing and delxvery ofrepmr par”. ‘82

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