Emerson Specifications, LM Series Surge Suppression, UL 1449 Clamping Data Second Edition

Specifications

LM Series Surge Suppression Life Cycle Surge Testing 10kA, 20kV, IEEE, Cat. C3

Maximum Continuous
Operating Voltage (MCOV)	120V ±25%, all others ±15%
Fault Current Rating (AIC)	200 kAIC
Operating Frequency Range	47 - 63 Hz
Response Time	< 0.5 nanoseconds
Operating Humidity	0% to 95%
Status Indication	LEDs, Dry Contacts, Audible Alarm
Certifications	UL 1449 & 1283, CUL, NEMA LS1, ISO 9001
Enclosure	NEMA 12
Warranty	5 Years Parts

UL 1449 Clamping Data (Second Edition)

System Voltage	L-N	L-G	L-L	N-G
120/208	400	400	700	400
120/240	400	400	700	400
346/600	1200	1200	2000	1200
277/480	700	700	1500	700
480	X	1500	1500	X
600	X	1800	2000	X

Unit	Per Mode	Per Phase
060-080	8,000	16,000
100-150	16,000	32,000
200-250	24,000	48,000

EMI/RFI Noise Rejection

Single Unit	Frequency	System Installation
34dB	100kHz	51dB
51dB	1MHz	94dB
54dB	10MHz	114dB
48dB	100MHz	120dB

How To Specify The Appropriate Model:

All LM model numbers begin with a LM prefix. Use Chart A to build your LM starting with the Surge Rating column. Moving left to right, choose the correct configurations from each column for your application. Your completed model number should look similar to the example below or LM250120YARCE. Refer to Chart B for LM Series dimensional data.

Chart A – Example

LM 2 5 0 1 2 0 Y A R C E

Model#		Surge Rating		L - G Voltage	Configuration
Indicators
L	M	60kA/mode	060	120-120V	Single Phase L-N, 2W+gnd	N
		80kA/mode	080	208-208V	Single Phase L-L, 2W+gnd	L
		100kA/mode	100	220-220V	Split Phase, 3W+gnd	S
LowCost	Modular	125kA/mode	125	230-230V	Three Phase Wye 4W+gnd	Y
		150kA/mode	150	240-240V	Three Phase Delta 3W+gnd	D
		200kA/mode	200	277-277V	Three Phase Delta Hi-leg 3W+gnd	H
		225kA/mode	225	480-480V
		250kA/mode	250	600-600V

Modes of		Connection		Monitoring Options
Protection		Options				Enclosure
ALL	A	WireLug	N	Standard Monitoring		NEMA12 (Standard)	E
				System, LEDs,
		Disconnect	R			NEMA 3R	R
				Audible Alarm,	S
				Dual Form C		NEMA 4	T
				Contacts
						NEMA 4X	X
				LEDs, Audible
				Alarm, Surge	C
				Counter, Dual
				Form C Contacts

Chart B – LM Series Dimensional Data

			Dimensions (inches)					Approx. Weight
Unit	Options	A	B	C	D	E	F
LM060
LM080	All	16	14	8	16.75	12.0	0.31	35
LM100
LM125
LM150
LM200
LM225	All	20	16	9	21.25	10	0.31	45
LM250

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