Control box installation

Control Box Installation

The following procedure outlines the steps for connecting the pump to a control box.

DANGER

Each submersible pump is designed to work with a control box.This control box contains the necessary electronics (float switch connections) to operate the pump. Remember this control box contains

hazardous voltages. Disconnect all sources of power before installing or servicing.There exists the possibility of electrocution, electric shock or burn, which can cause severe bodily harm or even death!

DANGER

When installing the control box, the possibility exists of electrical shock, electrocution and possibly death! NEVER have untrained personnel perform the installation. ALWAYS have qualified

service personnel (licensed electrician) perform the installation.

WARNING

Explosion or Fire Hazard exists if this pump is used with flammable liquids. DO NOT use this pump with flammable liquids. DO NOT install this pump in hazardous locations as defined by the National Electrical Code, ANSI/NFPA 70.

CONTROL BOX MOUNTING

Mount the control box in an upright vertical position. Make sure the control box is securely fastened to a flat surface, that is free of dust, dirt, moisture or any elements that may contaminate or erode the electronic components of the control box.

3-Phase Power Installation (Input)

Each pump is either configured for 230 or 460 VAC voltage input. Reference Table 1 for the correct input voltage for your pump.

If you cannot determine what your pump's power requirements are, look at the vendor supplied identification name tag attached to the pump or please contact Multiquip's Service/Technical Assistance department.

CAUTION

Applying incorrect power (voltage phasing) to the submersible pump can cause severe damage to the pump. Please make sure that the correct voltage and phase are applied to the pump at all times.

Power Cord Requirements

When routing the 230/460 VAC, 60 Hz., 3-phase power via a power cord to the control box, ALWAYS use the correct wire size. Please refer to Table 5 to determine the correct wire size. Incorrect wire size can adversely affect the performance of the pump and may ultimately burn out the pump motor.

Table 5. Power Cord Length

and Wire Size

AMPS	10 FT.	20 FT.	30 FT.	50 FT.
AMPS	(3.0 m)	(6.0 m)	(9.1 m)	(15.2 m)
	(3.0 m)	(6.0 m)	(9.1 m)	(15.2 m)
15	12 AWG	10 AWG	8 AWG	6 AWG
20	10 AWG	8 AWG	6 AWG	4 AWG
25	10 AWG	6 AWG	6 AWG	4 AWG
30	10 AWG	6 AWG	4 AWG	2 AWG
40	8 AWG	6 AWG	4 AWG	2 AWG

st4/ST6 series submersible pumps• operation AND PARTS manual — rev. #1 (11/12/13) — page 15

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