Distribution Box Spider 50 AMP

Description

PORATBLE POWER DISTRIBUTION UNITS

These units are rated either 30 or 50 amps, 125/250 VAC, Single Phase. The max. ampacity for the 30 amp unit is 60A @ 120V, and the 50 amp unit is 80A @ 120V. The 20 amp, 120 volt outlets are individually protected by circuit breakers and GFCI circuit modules.

INTRODUCTION

CEP temporary power distribution units are equipped with GFCI modules to provide protection from electrocution hazards resulting from ground faults. Ground faults are current leaks and can result in electric shock. Currents of only 60/1000 of an ampere can be fatal. The GFCI protection provided by CEP temporary power distribution units significantly minimizes shock hazards. CEP temporary power distribution units, which are UL listed as Class A, Group I interrupters, respond to fault currents as low as 3-6 milliamperes, and will shut off the current within 1/40th of a second. The temporary power distribution unit is designed to provide protection against electrical shock hazards due to line-toground faults. Although the GFCI module does not eliminate the hazard of a shock, it does limit the duration of the shock to a period considered safe for normally healthy persons. GFCI modules will provide protection against ground faults only. They will not protect against overloads or short circuits. There is no known device that will guard against the electrical shock hazard resulting from contact with both the “hot” and neutral wires of the electrical circuit.

ELECTRICITY IS DANGEROUS. EVEN WHEN SAFETY DEVICES ARE PRESENT, HANDLE WITH CARE AND USE REASONABLE CAUTION.

LET CAUTION PREVAIL

The CEP temporary power distribution unit is designed to be used on a grounded electrical supply system. It will not operate when supplied from a power source which is not grounded. Over-current protection of the proper rating, according to the National Electric Code, Article 240, must be used on the supply circuit feeding the temporary power distribution units.

NUISANCE TRIPPING

All cables have some capacitive leakage. In a 120 volt system, there is a limit to the length of cable which can be run before sufficient leakage to ground will build up causing a GFCI to trip. Individual 120 volt branch circuit load cords should be limited to 250 feet in length.

APPLICATION NOTES

Enclosure is a NEMA Type 3R; enclosures are intended for use outdoors to protect the enclosed equipment against windblown dust and water and to provide for its operation when the enclosure is covered by external ice or sleet.

HIGH VOLTAGE LIGHT

An illuminated high voltage light indicates the input wiring is incorrect; check the power source.

CONTACT MONITOR LIGHT

The red monitor light is a welded contact indicator. If the monitor light is on with the unit tripped, it indicates the contact is welded, and the unit should be replaced immediately -- there is no GFCI protection. When the TEST button is pressed, both the POWER light and MONITOR light should go out, and come back on when the RESET button is pressed.