Siemens 6RA70 140ADC to 850ADC Base Drive Panels, 3AC 460V, 1 & 4Q, 140 210 255 430 510 850

5.2 140ADC to 850ADC Base Drive Panels, 3AC 460V, 1 & 4Q

Rated supply voltage			V						3 Phase
armature 1)								460 (+10% / – 5%)
Rated input current			A	129.8		187.2			234.1	377.6	448.2		727
armature + field 2)
Fan type			V	Internal 24VDC						1 Phase
										230V
Air flow rate	ft3/min				100					570			1300
Fan noise level		dBA			40					76			85
Rated supply voltage field			V				1 Phase 460 (+10%)
Rated frequency			Hz	45 to 65 Hz self adapting (armature and field are
				independent)
Rated DC voltage 3)			V				500
Rated DC armature current			A	140		210		255		430	510		850
Overload capability 60s	7)					150% of rated DC current
Rated output @ 500 VDC			Hp	75		125		150		250	300		500
Rated output @ 240 VDC			Hp	40		60		75		125	150		250
Power loss at rated DC current			W	740		1000		1300		1915	2180		3850
(approximately)
Rated DC voltage field			V				300
Rated DC field current			A		15				25			30
Operational ambient			°C						0 to 45 at Irated
temperature									fan-cooled 4)
Storage and transport			°C						– 25 to +70
temperature
Installation altitude above sea						≤ 1000 m at rated DC current 5)
level
Control stability				∆n = 0.006% of the rated motor speed, valid for pulse
				encoder operation and digital setpoint
				∆n = 0.1% of the rated motor speed, valid for analog
				tachometer or analog setpoint 6)
Degree of protection							Open Chassis (IP00)
Dimensions				Refer to dimension drawings in Section 6
Weights (approx.)			Lbs.	90						160	210
						95		145					400

5-2	Siemens Energy & Automation
	SIMOREG DC Master Base Drive Panel Operating Instructions