THERMISTORS/RESISTORS PTC THERMISTORS (POSISTOR) PTC MOTOR STARTERS, PTH7M/491 SERIES ve DIMENSIONS: mm Specifically designed for appliance application in refrigerators, air conditioners and freezers and feature an encapsulated construction and quick connect terminations to facilitate installation and service. The exceptionally low resistance of this Posistor in the off condition allows a maximum current to flow in the starting winding. As the temperature of the Posistor increases, so does its resistance. The starting winding i is essentially isolated from the running winding once the motor has reached finovator th Elcctrontes operating speed because of this increase in Posistor resistance. FEATURES @ No starting contacts to pit or wear @ May be directly substituted for start switches without redesigning motor @ Encapsulated construction M@ Acoustically and electrically noise free @ Vibration and shock resistant @ Long operating life Bt Ideal for explosion proof motor applications @ Quick connect terminations PTH7M PTHA9TA/B Failsafe Plug on type relay, with foilsafe operation Starting Systems of Motors Troe | PTHAOIAO! pa | PTH7M-Cl | PTH7M-D2 Starting Yee | ernagrpor | PTH7M-83 | prazm-co | PTHTM-DS Capodter Stort lndection Ron O Capocttor Stort and Copacitor Ron O ~O Resistance Sturt Induction Rea Oo Oo Pormonent Split Capeciter oO O PTHA91A, B: Discrete type PTH7M, B, C, D: Plugin type [2-receptacle type]. Application Grevits CSIR Motor RSIR Motor LE Ale fa SPECIFICATIONS Voltage Corrent Power Tob Type Characteristic Resistance (Ves) fT) Consumption Terminal (Corie Point) (a) max, MX. (W) max. Size 47 130 12 30 6a 200 10 29 . PTHTM aS 10 25 28 No. 250 (135) 3B 355 6 28 47 400 5 28 100 40 25 28 PTH49TA01 33 160 2 40 Wo. 250 PTH491B01 AR n 300 I 37 Wo. 187 (120q v. 40 5 PTH491A04 72 40 9 45 No. 250 PTH491804 4] 500 7 40 No. 187 Minimum Order Quantity: 150 a PART NUMBERING SYSTEM RESISTANCE VALUE vAbanee noron STARTING aan PTC For more detailed information regording this product line, see Catalog No. C-22-C. Yo receive additional information on Murata Products coll 1-800-831-9172, 116