Draw-out heater service module and switchgear incorporating same

Details Draw-out heater service module and switchgear incorporating same Draw-out heater service module and switchgear incorporating same

1998-11-09

2000-06-06

Jeffery, John A.

Electric heating

Heating devices

Combined with container, enclosure, or support for material...

219523, 219536, 361605, 361724, 312236, H02B 112, H05B 300

Patent

active

060721596

ABSTRACT:
A heater for the middle, bus bar compartment of a switchgear cabinet is inserted from the rear compartment through an opening in a vertical panel at the rear of the middle compartment and is supported within the middle compartment by a bracket cantilevered from the panel. The bracket is U-shaped with a horizontal base and a pair of upstanding side walls forming rails on which the heater slides. The heater includes an inverted U-shaped guard over the heater element forming downwardly facing slots which engage the bracket rails. The guard and the bracket are perforated for convective circulation of air induced by the heater.

REFERENCES:
patent: 2798930 (1957-07-01), Frost
patent: 3279350 (1966-10-01), Kaplan
patent: 3697725 (1972-10-01), Bielefeldt

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