Siemens MCC-3298 user manual Appendix a Technical Specifications

Appendix A Technical Specifications

Appendix A - Technical Specifications of the SAMMS-LV Device

Motor Control Specifications
Inputs	SAMMS-LVX:		SAMMS-LVE:
	Six pushbuttons		Six pushbuttons
	Four remote inputs		Two remote inputs
Outputs	SAMMS-LVX:		SAMMS-LVE:
	Three coil drivers		One coil driver
	Three light bars		Two light bars
	One programmable alarm contact
Diagnostic LEDs	*	Current unbalance
	*	Impending trip
	*	Overload trip
	*	External trip
	*	Incomplete sequence
	*	Ground fault
	*	CPU fault
	*	Ready
	*	Light bar flashes (timer timing)
	*	Impending trip LED flashes (motor temperature warning)
	*	Overload trip LED flashes (start inhibit)
	*	CPU LED ON (momentary loss of voltage)
Current Ranges:	Overload Relay Size:
0.3 - 1.5A	1A
1.2 - 6A	1B
4.8 - 24A	1C
10 - 36A	2A
10 - 45A	2B
20 - 90A	3
40 - 135A	4
80 - 270A	5
160 - 540A	6

Permissible CT Ratios
5A secondary CT ratios (functions	Overload Relay Size	Permissible CT Ratios
F4A & F5A)	1A	N/A
	1B	N/A
	1C	30:5, 40:5
	2A	30:5, 40:5, 50:5
	2B	30:5, 40:5, 50:5
	3	30:5, 40:5, 50:5, 75:5, 100:5, 150:5
	4	50:5, 75:5, 100:5, 150:5
	5	100:5, 150:5, 200:5, 250:5, 300:5, 400:5
	6	200:5, 250:5, 300:5, 400:5, 500:5, 600:5

42