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DC Surge Protectors

Type 1 surge protection devices are combined lightning current and surge arresters that are used in unmetered areas. They are meant to protect against the effects of direct lightning strikes and must satisfy very stringent requirements. In order to meet these requirements, spark gap technology is required. A spark gap will break down during an abnormal voltage surge, safely shunting the surge to ground.

Type 2 surge protection devices with a low discharge capacity are installed in the metered area. They are generally installed in machine control cabinets or sub-distributions. They do not have to handle direct lightning strikes, but they must be able to discharge over-voltages from indirect lightning strikes or switching operations. Varistor technology is proven itself here.  At low voltage, the varistor has a high electrical resistance which decreases as the voltage increases. When an over-voltage occurs, the varistor's resistance drops, allowing the extra current to flow through the varistor and safely to ground.

Type 3 surge protection devices with the lowest discharge capacity are installed as close as possible to the end device. The devices have a wide range of designs to suit the various different installation environments. Type 3 surge protection is similar to type two, which is based on varistors, but the requirements concerning discharge capacity are lower compared to type 2.

Found 181 items
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Found 181 items
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ABB (54)
Phoenix Contact (64)
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Transtector (51)
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Surge Arrester (8)
Surge Protection Device (62)
Surge Protection Plug (47)
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Surge Protection For Information Technology (3)
Surge Protection For Measurement And Control Technology (6)
Surge Protection For NEMA Power Supply Units (2)
Sub Component
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Surge Protector Line Voltage
100 VDC (1)
100 Volt - 120 Volt (3)
1000 VDC (1)
1170 Volt (2)
12 VDC (8)
12 Volt (7)
1500 Volt (1)
170 VDC (1)
180 Volt (1)
200 VDC (1)
Surge Protector MCOV
+/-7 60 VDC (2)
118 VDC (1)
13 VDC (1)
130 VDC (1)
1350 VDC (1)
14 VDC (2)
16 VDC (1)
180 Vpk (1)
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Maximum Continous Voltage
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119 Volt (1)
120 Volt (8)
120/240 Volt (1)
15 Volt (2)
150 Volt (4)
208Y/120 Volt (2)
240/120 Volt (4)
250 Volt (1)
260 Volt (4)
Nominal Discharge Current
10 Ka (9)
12.5 Ka (2)
15 Ka (7)
2.5 Ka (1)
20 Ka (18)
3 Ka (1)
300 Amp (1)
350 Amp (2)
5 Ka (1)
Impulse Discharge Current
12.5 Ka (2)
4 Ka (1)
Max Discharge Capacity
100 A (150 V AC) (1)
100 A (264 V AC) (1)
100 A (305 V AC) (1)
1000 V DC (2)
175 V AC (1)
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40 A (1)
50 Ka (2)
80 A (11)
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1L-N (1)
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Line-Line (12)
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N-PE (1)
Optional Signal Ground-Shield-Earth Ground (8)
Signal Ground-Shield-Earth Ground (2)
Combined Surge
6 Kv (1)
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Screw Connection (53)
Fault Warning
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None (8)
Optical (37)
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Remote Indicator Contact (8)
Surge Protector Connector
1/4 Inch Terminal Clip (AAR) (1)
1/4" Terminal Clip (1)
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Cage Clamp (28-12AWG Or Twisted Pair) (1)
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Compression Lug (4)
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Input Connector D38999-20WE6SN (1)
Input MS3452W32-1P (1)
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Surge Protector Mount
ARR Terminal (2)
DC Circuit Breaker (3)
Din Rail Mount (21)
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Surge Protector Standards
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CE (3)
CE Compliant (1)
CSA (3)
FM US (2)
IEC 60950 (3)
IEC 61643-1 (5)
IEC EN 60529 (4)
Surge Protector Component
Complete Unit (1)
Normally In Stock
ABB THQLSURGE2 - RESI SPD WITH PIGTAIL
Free U.S Ground shipping
$595.40
$496.17
Normally In Stock
ABB OVRT21N40660PTSU - Surge Protective Device, 600V Single Phase, 2 Pole, 3 Wire
Free U.S Ground shipping
$1065.46
$887.88
Normally In Stock
ABB OVRT240660PTSU - Surge Protective Device, 600V Single Phase, 1 Pole, 2 Wire
Free U.S Ground shipping
$524.78
$437.32
Normally In Stock
ABB OVRT240660CU - Surge Protective Device, 600V Single Phase, 1 Pole, 2 Wire
Free U.S Ground shipping
$302.15
$251.79
Normally In Stock
ABB OVRT23N40660PTSU - Surge Protective Device, 600/347V 3-Phase Wye, 4 Pole, 5 Wire
Free U.S Ground shipping
$2433.11
$2027.59
Normally In Stock
ABB OVRT23N40440PTSU - Surge Protective Device, 600/347V 3-Phase Wye, 4 Pole, 5 Wire
Free U.S Ground shipping
$1701.59
$1417.99
Normally In Stock
ABB OVRT22N40660PTSU - Surge Protective Device, 600/347 Split Phase, 3 Pole, 4 Wire
Free U.S Ground shipping
$1749.31
$1457.76
Normally In Stock
ABB OVRT22N40440PTSU - Surge Protective Device, 600/347 Split Phase, 3 Pole, 4 Wire
Free U.S Ground shipping
$1272.22
$1060.18
Normally In Stock
ABB OVRT21N40550PTSU - Surge Protective Device, 480V Single Phase, 2 Pole, 3 Wire
Free U.S Ground shipping
$1033.64
$861.37
Normally In Stock
ABB OVRT240550PTSU - Surge Protective Device, 480V Single Phase, 1 Pole, 2 Wire
Free U.S Ground shipping
$492.97
$410.81
Normally In Stock
ABB OVRT240550CU - Surge Protective Device, 480V Single Phase, 1 Pole, 2 Wire
Free U.S Ground shipping
$238.56
$198.80
Normally In Stock
ABB OVRT23L40550PTSU - Surge Protective Device, 480V 3-Phase Delta, 3 Pole, 4 Wire
Free U.S Ground shipping
$1637.92
$1364.93
Normally In Stock
ABB OVR T2 3L 40-550PU - Surge Protective Device, 480V 3-Phase Delta, 3 Pole, 4 Wire
Free U.S Ground shipping
$1007.33
$839.44
Normally In Stock
ABB OVRT23N40550PTSU - Surge Protective Device, 480/277V 3-Phase Wye, 4 Pole, 5 Wire
Free U.S Ground shipping
$2321.80
$1934.83
Normally In Stock
ABB OVRT23N40320PTSU - Surge Protective Device, 480/277V 3-Phase Wye, 4 Pole, 5 Wire
Free U.S Ground shipping
$1542.58
$1285.48
Normally In Stock
ABB OVRT23N15320PU - Surge Protective Device, 480/277V 3-Phase Wye, 4 Pole, 5 Wire
Free U.S Ground shipping
$1288.12
$1073.43
Normally In Stock
ABB OVRT22N40550PTSU - Surge Protective Device, 480/277 Split Phase, 3 Pole, 4 Wire
Free U.S Ground shipping
$1669.74
$1391.45
Normally In Stock
ABB OVRT22N40320PTSU - Surge Protective Device, 480/277 Split Phase, 3 Pole, 4 Wire
Free U.S Ground shipping
$1144.93
$954.11
Normally In Stock
ABB OVRT22N15320PU - Surge Protective Device, 480/277 Split Phase, 3 Pole, 4 Wire
Free U.S Ground shipping
$1065.46
$887.88
Normally In Stock
ABB OVRT22L15320PU - Surge Protective Device, 480/277 Split Phase, 2 Pole, 3 Wire
Free U.S Ground shipping
$508.85
$424.04
Normally In Stock
ABB OVRT21N40440PTSU - Surge Protective Device, 347V Single Phase, 2 Pole, 3 Wire
Free U.S Ground shipping
$826.88
$689.07
Normally In Stock
ABB OVRT240440PTSU - Surge Protective Device, 347V Single Phase, 1 Pole, 2 Wire
Free U.S Ground shipping
$333.94
$278.28
Normally In Stock
ABB OVRT240440CU - Surge Protective Device, 347V Single Phase, 1 Pole, 2 Wire
Free U.S Ground shipping
$222.67
$185.56
Normally In Stock
ABB OVRT23L40440PTSU - Surge Protective Device, 347V 3-Phase Delta, 3 Pole, 4 Wire
Free U.S Ground shipping
$1129.08
$940.90
Normally In Stock
ABB OVRT21N40320PTSU - Surge Protective Device, 277V Single Phase, 2 Pole, 3 Wire
Free U.S Ground shipping
$763.33
$636.11
Normally In Stock
ABB OVRT21N15320PU - Surge Protective Device, 277V Single Phase, 2 Pole, 3 Wire
Free U.S Ground shipping
$731.53
$609.61
Normally In Stock
ABB OVRT240320PU - Surge Protective Device, 277V Single Phase, 1 Pole, 2 Wire
Free U.S Ground shipping
$254.47
$212.06
Normally In Stock
ABB OVRT240320PTSU - Surge Protective Device, 277V Single Phase, 1 Pole, 2 Wire
Free U.S Ground shipping
$286.24
$238.53
Normally In Stock
ABB OVRT240320CU - Surge Protective Device, 277V Single Phase, 1 Pole, 2 Wire
Free U.S Ground shipping
$206.75
$172.29
Normally In Stock
ABB OVRT215320PU - Surge Protective Device, 277V Single Phase, 1 Pole, 2 Wire
Free U.S Ground shipping
$238.56
$198.80
Normally In Stock
ABB OVRT215320CU - Surge Protective Device, 277V Single Phase, 1 Pole, 2 Wire
Free U.S Ground shipping
$190.80
$159.00
Normally In Stock
ABB OVRT23L15320PU - Surge Protective Device, 277V 3-Phase Delta, 3 Pole, 4 Wire
Free U.S Ground shipping
$779.27
$649.39
Normally In Stock
ABB OVRT22N40150PTSU - Surge Protective Device, 240/120V Split Phase, 3 Pole, 4 Wire
Free U.S Ground shipping
$1017.78
$848.15
Normally In Stock
ABB OVRT22N15150PU - Surge Protective Device, 240/120V Split Phase, 3 Pole, 4 Wire
Free U.S Ground shipping
$922.37
$768.64
Normally In Stock
ABB OVRT22L15150PU - Surge Protective Device, 240/120V Split Phase, 2 Pole, 3 Wire
Free U.S Ground shipping
$445.27
$371.06
Normally In Stock
ABB OVRT23N40150PTSU - Surge Protective Device, 208/120V 3-Phase Wye, 4 Pole, 5 Wire
Free U.S Ground shipping
$1351.73
$1126.44
Normally In Stock
ABB OVRT23N15150PU - Surge Protective Device, 208/120V 3-Phase Wye, 4 Pole, 5 Wire
Free U.S Ground shipping
$1176.77
$980.64
Normally In Stock
ABB OVRT21N40150PTSU - Surge Protective Device, 120V Single Phase, 2 Pole, 3 Wire
Free U.S Ground shipping
$699.74
$583.12
Normally In Stock
ABB OVRT21N15150PU - Surge Protective Device, 120V Single Phase, 2 Pole, 3 Wire
Free U.S Ground shipping
$651.97
$543.31
Normally In Stock
ABB OVRT240150PU - Surge Protective Device, 120V Single Phase, 1 Pole, 2 Wire
Free U.S Ground shipping
$222.67
$185.56
Normally In Stock
ABB OVRT240150PTSU - Surge Protective Device, 120V Single Phase, 1 Pole, 2 Wire
Free U.S Ground shipping
$254.47
$212.06
Normally In Stock
ABB OVRT240150CU - Surge Protective Device, 120V Single Phase, 1 Pole, 2 Wire
Free U.S Ground shipping
$190.80
$159.00

More Information about DC Surge Protectors

Power surges occur when there is a sudden increase of voltage sent through a power system from an internal or external force. Such forces can be caused by lightning strikes, electrical overload, faulty wiring or utility switching. Surge protective devices provide a line of defense against power surges preventing irreparable damage to equipment and costly downtime. A surge protector is generally classified according to its performance value, depending on the protection class and location of use.

Surge Protection Basics

What causes power surges? 

Lightning strikes are one of the most common causes of power surges and can affect an electrical system even if the strike occurs miles from the electrical source. Conductors buried underground can still transmit the energy of the strike to electrical equipment located indoors. Lightning rods and other grounding equipment can help, but do not completely eliminate the risk.

Switching equipment such as motors, transformers and other equipment can cause a sudden change in load, power loss and disconnection of circuit breakers. This sudden switching can cause overvoltage, leading to power surges. The closer the switching occurs to the electrical system, the more threat it will pose to the equipment.

Operations that a user performs can cause surges, but typically have a very short duration. Examples include: starting a motor, opening circuit breakers and welding equipment.

What is the best way to stop power surges? 

By using transient surge suppressors, the problems associated with most transient surges can be eliminated. They provide protection by either blocking or shorting the voltage over its operating limit to ground, protecting circuits downstream of the suppressor. The best way to approach this is in tiers.  

Tier 1 – The protection is closest to the incoming power source. This is the main protection for a particular location.

Tier 2 – This is in an area that will be protecting multiple devices that have branch protection. An electrical control panel would be an example of this type of application.

Tier 3 – Individual protection. In the case of an industrial control panel, this would be protection for each instrument entering the panel.