GF281 Datasheet, PDF (1/3 Pages) TOCOSAMERICA, INC. – 28mm Diameter, Single-Turn, Cermet Industrial Panel Controls

GF281 Series
TOCOS®
PANEL CONTROLS
28mm Diameter, Single-Turn, Cermet Industrial Panel Controls
GF281G
GF281
Features
Ⅲ 28mm diameter, single-turn industrial panel controls Ⅲ Cermet film element Ⅲ Single and tandem units, single shaft
Ⅲ Excellent environmental characteristics Ⅲ Linear taper Ⅲ Shaft lock available Ⅲ Metal shaft and bushing
Ⅲ 6mm diameter shafts in slot, flat or round end styles Ⅲ Standard 15mm or 20mm shaft length Ⅲ Panel mount only
Ⅲ Right angle ear-lug terminals Ⅲ Optional 6-turn GFV281 model available as special order
Specifications
Electrical
Standard Resistance Range . . . . . . . . . . . . . 100Ω to 1MΩ
Resistance Tolerance . . . . . . . . . . . . . . . . . ؓ10% standard
End Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Ω max.
Resistance Taper . . . . . . . . . . . . . . . . . . . . . . . . . . B = linear
Peak Noise (C.R.V.) . . . . . . . 3% or 5Ω, whichever is greater
Power Rating . . . . . . . . 2 watts at ؀70؇C, 0 watt at ؀120؇C
Maximum Input Voltage . . . . . . . . 400VDC or power rating,
whichever is smaller
Temperature Coefficient . . . ؓ100 ppm /؇C, 200Ω to 500kΩ
ؓ250 ppm /؇C, other values
Dielectric Strength . . . . . . . . . . . . . . . . 1,000VAC, 1 minute
Mechanical
Mechanical Travel . . . . . . . . . . . . . . . . . . . . . . . . . 295؇ؓ10؇
Shaft Torque
Single Unit . . . . . . 50 to 300 gf • cm (0.693 to 4.159 oz • in)
Tandem Unit . . . . . 50 to 450 gf • cm (0.693 to 6.238 oz • in)
Stop Strength . . . . . . . . . . . 9.2 kgf • cm (127.54 oz • in) max.
Mounting Nut Torque . . . . . . 15 kgf • cm (207.94 oz • in) max.
Solderability . . . . . . . . . . . . . . . . . . . . . . . 235؇C, 5 seconds
Marking . . . . . . . . . . . . . . . . . . Model type, taper, resistance,
shaft type, terminal identification, date code
Environmental
Temperature Range . . . . . . . . . . . . . . . . . ؁10؇C to ؀120؇C
Low Temperature Operation . . . . . . . . .؁10؇C, 45 minutes
with rated load
∆T/R ⁾ؓ3%
Load Life . . . . . . . . . . . . ؀70؇C, 1,000 hours with rated load
∆T/R ⁾ؓ5%
Vibration . . . . . . . . . . . . . . . . . . .10-55Hz, 1.5mm amplitude,
3 directions, 2 hours each
∆T/R ⁾ؓ1%
Soldering Heat Resistance . . . . . . . . . . . 350؇C, 3 seconds
∆T/R ⁾ؓ2%
Rotational Life . . . . 15,000 cycles (500 cycles for shaft lock
models only) without load
∆T/R ⁾ؓ10%
∆T/R = Total Resistance Change
TOCOS AMERICA, INC.
81
1177 East Tower Road, Schaumburg, IL 60173 Tel: [phone] Fax: [phone] E-mail: [e-mail] www.tocos.com