Siemens L-828 manual Input Power Breaker Sizing, Specifications, Ratings, Class, Description

L-828 CCRs LC-Type (4, 7.5, and 10 kW/6.6 A/60 Hz) Description

6.60 Hz LC-Type L-828 CCRs (4-10 kW/6.6 A): Required Equipment (contd.)

NOTE: Table 2-4 refers to recommended input power supply wire, less than 100 feet, 90°C, 600 or 5000 V minimum. For 100 to 250 feet, use the next larger (even) gage wire.

Table 2-4 Recommended Input Wiring Rating

kW Rating	208 Vac	220 Vac	240 Vac	480 Vac
4 kW	AWG 12, 600 V	AWG 12, 600 V	AWG 12, 600 V	AWG 16, 600 V
7.5 kW	AWG 8, 600 V	AWG 8, 600 V	AWG 10, 600 V	AWG 14, 600 V
10 kW	AWG 6, 600 V	AWG 6, 600 V	AWG 6, 600 V	AWG 12, 600 V

Table 2-5 Optional Lightning Arrestors

Input Voltage	Lightning Arrestor Part Number
208/220/240 Vac	94B0011-2
480 Vac	94B0011-1

6.Input Power Breaker Sizing

It is recommended that the circuit breaker on the input power supply lines have a rating of 125% of the CCR’s input current, as given in Table 2-5, unless local codes require a different rating technique. Refer to the CCR’s nameplate for the kW rating and input voltage to determine the actual input current from Table 2-5. If no standard- size circuit breaker exists at the 125% value, use the next larger standard-size circuit breaker.

NOTE: The currents listed in Table 2-6 represent actual input currents assuming the worst case limits of AC 150/5345-10E for power factor, efficiency, and number of required lamps out.

Table 2-6 CCR Input Current

	Rating	208 Vac		220 Vac	240 Vac	480 Vac
	4 kVA	27 A		26 A	24 A	12 A
	7.5 kVA	51 A		48 A	44 A	22 A
	10 kVA	68 A		65 A	59 A	30 A
			This subsection provides specifications for L-828 CCR
7. Specifications
			(4-10 kW/6.6 A).
Ratings			4, 7.5, 10 kW
Class			Class 1, 6.6 A (maximum output current)

 2002 Siemens Airfield Solutions, Incorporated	96A0104B	Page 2-6
All rights reserved	Issued 6/02