Analog Resources: >> Switchboard Order Guide (pdf) >> Switchboard Connection Diagrams >> Style Listings: Switchboard (pdf) >> Style Listings: Panel (pdf) Rugged Westinghouse Designs - Made in USA Switchboard and Panel Styles High Accuracy, Full View Construction High Overload Capacity Taut Band Suspension Meets ANSI STD C39.1 Military and Nuclear Versions Volts, Amps, Watts, VARS, Speed, Frequency and Power Factor Left, Center or Suppressed Zero Special Scales, Calibration & Phase Shifters Available Product types include K241, K261, K252, K221, K251, E251 switchboard meters;  20/20, Conventional, Airpax & Parker Airpax panel meters; KS-241 Synchrotie meters.  High shock switchboard units are available for military and severe commercial applications.  Types Models K241, K261  Switchboard  KA-241, KA-261, KC-241, KI-241, KI-261, KJ-241, KJ-261, KP-241, KP-261, KR-241, KV-241, KV-261, KX-241, KX-261, KR2-241, KR3-241, KR3-261, KR4-241 K251, U251  Switchboard  KA-251, KC-251, KI-25, KI-251, KJ-251, KP-251, KX-251, KY-251, UA-251, UC-251, UI-25, UI-251, UJ-251, UX-251, UY-251, KR3-251, UR3-251 V252, H252  Switchboard  HC-252,  HX-252, VC-252, VX-252, HR3-252, VR3-252 K221  Switchboard  KA-221, KC-221, KJ-221, KP-221, KX-221, KR3-221 E251  Switchboard  EA-251, EX-251 20/20  Panel GA-332, GA-352, GA-372, GA-382, GC-332, GC-352, GC-372, GC-382, GX-332, GX-352, GX-372, GX-382 Conventional  Panel NA-351, NA-371, NC-351, NC-371, NT-351, NT-371, NX-351, NX-371, RA-351, RA-371, RC-351, RC-371, RT-351, RT-371, RX-351, RX-371 ETM  Panel GH-332, GH-352, BH-351   For available Part Numbers, see Style Listings in Analog Resources box (above), or download the    Complete Weschler Analog Instrument Catalog (4M pdf)   Switchboard Instruments:   K241, K261 250º Scale   V252, H252, 6" Edgewise   Wattmeter Data   Synchroscope K221 100º Scale K251, U251, 6" Rectangular     E251 7" Round   Synchrotie   Panel Instruments:   20/20   Conventional   Elapsed Time   Parker / Airpax (Call for info) KA241, KA261, KC241, KI241, KI261, KJ241, KJ261, KP241, KP261, KR241, KV241, KV261, KX241, KX261, KR2241, KR3231, KR3241, KR3261, KR4241, KS241, KA251, KC251, KI25, KI251, KJ251, KP251, KX251, KY251, UA251, UC251, UI25, UI251, UJ251, UX251, UY251, KR3251, UR3251, HC252, HX252, VC252, VX252, HR3252, VR3252, KA221, KC221, KJ221, KP221, KX221, KR3221, EA251, EX251, GA332, GA352, GA372, GA382, GC332, GC352, GC372, GC382, GX332, GX352, GX372, GX382, NA351, NA371, NC351, NC371, NT351, NT371, NX351, NX371, RA351, RA371, RC351, RC371, RT351, RT371, RX351, RX371, GH332, GH352, BH351