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The Cole-Parmer Masterflex L/S Economy Variable-speed Drive Model 7554-95 is an economical and versatile variable-speed drive with a wide flow range. It includes;separate single-turn speed control and on/off switch with green power indicator—maintain speed setting while turning pump on/off. 1/20-hp unidirectional motor has soft start and back EMF for ±5% speed control,stackable painted steel housing is IP22 rated for protection from vertically falling water, 115 VAC models are UL and cUL listed; 230 VAC models are CE marked in compliance with European Community standards, 6-ft (1.8-m) line cord; 115 VAC: U.S. standard plug; 230 VAC: IEC 320/CEE22 socket—pumps are shipped with cord/plug set specific to destination country.

Specifications: 

• Max flow rate (mL/min): 2900
• Min flow rate (mL/min):               1.2
• Control type: Variable speed
• Power (Amps): 0.8
• Motor (hp): 1/20
• Motor (watts): 37
• Rpm: 20 to 600
• IP rating (Drive): IP22
• Dimensions (Drive): 9"L x 7"W x 6"H (22.9 x 17.8 x 15.2 cm)
• Speed control: ±5%