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Best Home Surge Protectors 2021

Dwelling Home
NEC Article 230.67 definition of dwelling unit includes your home.

Per the National Electric Code (NEC 2020), your home is considered a dwelling unit. Other dwelling units include Hotels, Hospitals, Dormotories, Barracks and Apartment Buildings. The NFPA 70 Article 230.67 states that all dwellings units must install a UL1449 Listed SPD at the incoming service panel. In the case of most residences, this is a 120/240Vac main service. Shown below is an example using the M50-120T-A.

M50-120T-A

The M50-120T-A is installed via a 2-Pole 30A circuit breaker and will not only protect the main service panel but all smart applicances and electronics in the home like your oven, refrigerator, dishwasher, security system, televisions, ev chargers, etc... This protector is what is referred to as a "Whole House Surge Protector".

PRODUCT COMPARISON

This page collects publicly available data from ul.com and manufacturers web sites then assembles a side by side reference table for convenient product comparisons.

Manufacturer Citel Logo DitekRectorsealICM ControlsIntermatic
UL File #E326289E328921E505670E347279E359025
Model M50-120T-A
DTK-120/240CM+


RSH-50


ICM517


AG3000

Product Image M50-A

UL.com Ratings

SPD Type11*121
Volt (V)240/120240/120240/120240/120240/120
AC/DC
DC PV
ACACACACAC
Phase1S1S1S1S1S
Amps (A)n/an/an/an/an/a
Ambient Min (C)-35-35-40-35-40
Ambient Max (C)8080854070
Mode
L-L
L-N
L-G
N-G
L-L
-
L-G
-
L-L
-
L-G
-
L-L
L-N
L-G
N-G
L-L
-
L-G
-
VPR (Vpk)
L-L
L-N
L-G
N-G
1200
700
1200
1200
1200
-
700
-
2000
-
1200
-
1200
800
900
1000
1200
-
700
-
MCOV
L-L
L-N
L-G
N-G
280
140
140
120
300
-
150
-
300
-
150
-
260
130
130
260
300
-
150
-
In (kA)201010520
SCCR (kA)15010020010100

Additional
Data Sheet Ratings

Surge Current
Rating (kA)
505050100-
Protection CircuitHybrid TMOV+GSGTMOVTMOV+GDTMOVTMOV
Leakage CurrentNoYesYesYesYes
TOV OptimizedYesNoNoNoNo
DiagnosticsLED
Audible Alarm
LEDLEDLEDLED
Environmental
Rating
NEMA 4X
NEMA 6
(submersible)
NEMA 4XNEMA 4XNEMA 3RNEMA 4X
Warranty10-year3-yearLimited
Lifetime
Limited
Lifetime
3-year
Connected Equipment
Warranty
10-year
$7,500
3-year
$7,500
5-year
$5,000
-3-year
$7,500
"UL.com Ratings" data is publicly available with a free account at UL.com. The "Additional Data Sheet Ratings" are available for free on the manufacturers web site or by submitting a request directly. All the data has been reviewed by our engineering department. From time to time, the applicants UL file (including CITEL's) may become changed or updated at UL.com due to new testing or corrections to a report. In addition, manufacturers may change the data on their web sites. At the time of this comparison you will find this information to be accurate to the UL web site as well as the manufacturers publicly available data. If you find any information requires an update, please bring to our attention and it will be updated immediately.

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10108 USA Today Way
Miramar, FL 33025 USA
Contact us to develop a surge mitigation solution for your application

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Where to purchase Citel SPD's