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Surge Protection

Data sheet

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Source of supply

Alpha’s surge protection devices provide reliable protection of power supplies and related equipment from the damaging powerline disturbances common to cable TV and broadband applications. The LA and ISA Series incorporate Metal Oxide Varistors (MOVs) that effectively limit voltage surges and absorb excessive energy levels. Housed in durable polymer casings with standard electrical plugs, the LA Series plugs directly into any electrical outlet, while the ISA is factory wired into the service entrance.

Critical protection from voltage transients
Modular and hardwired Metal Oxide Varistors (MOV) options
Convenient, plug-in design for easy installation
LA Series features piggyback plug to optimize receptacle use

Technical data

Surge Protection

Model Selection	Good	Good	Better	Best
LA Series Model:	LA-P+ 120	LA-P+240	LA-P-120T	ISA 120/240
Part Number:	020-098-24	020-098-25	162-046-10	162-041-10
Operating Voltage:	120	240	120	120/240 3 wire
Nominal Specifications
Clamping Voltage:	150VAC	320VAC	130VAC	150VAC
Protection:	L/N/G	L1/L2/G	L/N/G	L/N/G
Energy Absorption (Joules):	210	112	210	960
Surge Current (8/20ms) Up To:	6.5kA	6.5kA	13.5kA	40kA
Response Time:	<1Ns	<1Ns	<5Ns	<5Ns
Operating Temperature:	-40° to 55°C (-40 to 131°F)
Varistor Voltage@1mA:	240V (216-264)	510V (459-561)	184V	N/A
Max. Clamping Voltage:	395@100A	895@100A	340@60A	710@5kA
LED Indicator:	Yes	Yes	Yes	Yes

Notes:
1 The LA Series is designed for use in Alpha power supply enclosures with convenience outlets. These outlets must be protected by an appropriate fuse or circuit breaker.
2 The iSA surge protection devices are factory wired on the load side of the service entrance are available for fi eld replacement. These arrestors should be installed by a licensed electrician.

COAX Protectors

Ideally suited to protect costly status-monitoring transponders, digital set top boxes, cable modems and satellite receivers in the headend as well as high-end HDTV
sets from potentially damaging surges. The patented coaxial gas tube surge protector is equipped with an integral failsafe mechanism. Listed to UL 497, CSA Listed
Certifi ed & Complies with 1999 National Electric Code.

Patented In-Line® Coaxial Gas Tube Surge Protection
Provide Lightning and Surge Protection for Distribution, Customer Premises and Headend Equipment
Improves Broadband Network Reliability and Reduces Service Outages
Power Passing
Listed to UL 497, CSA Listed Certifi ed & Complies with NEC