LOVATO ELECTRIC - Surge protection devices

SURGE PROTECTION DEVICES
	LOVATO Electric surge arresters commonly defined as SPDs (Surge ProtectionDevices), are devices designed to protect electric systems and equipment against transient and impulse overvoltages such as those caused by lightning and by electric switching. Their function is to divert the discharge or impulse current generated by an overvoltage to earth, thereby protecting the equipment downstream. The range is available in monoblock versions or with removable cartridges in class I, II and III for alternating current (AC) applications and with removable cartridges in class II for photovoltaic applications (DC).

General characteristics:

Modular concept for quick assembly of different versions based on various requirements

Compact size also compliant with electrical equipment standards

Easy mounting and removal with 35mm DIN rail

IP20 protection degree finger safe

Photovoltaic certified versions UL Recognized for USA and Canada and compliant with UTE C 61740-51

Protection against overvoltage caused by direct or indirect lightning strikes

Types with plug-in cartridges for fast servicing capability

Status indicator for single modules

Versions with or without contact for SPD remote status indication

Versions for photovoltaic applications up to 1500VDC

Excellent protection level up ≤ 1.5kV Suitable for protection of all terminal equipment.

Type 1, 2 - Class B, C - Monoblock
The surge protection device type SA1 combines the performance of SPD type 1 and 2 into a single product.
It protects against direct and indirect lightning strikes as well as induced overvoltage conditions.
It can be installed in areas with a high risk of direct lightning strikes, inside main distribution boards or sub-distribution boards.

Operational characteristics

Maximum continuous voltage Uc: 320VAC/420VDC

Impulse current Iimp (10/350μs): 25kA per pole;

Rated discharge current In (8/20μs): 25kA per pole;

Maximum discharge current Imax (8/20μs): 100kA per pole

Standard-supplied contact for remote status indication

Degree of protection: IP20.

Type 2 - Class C - With plug-in cartridge
The surge protection device type SA2 is suitable for installation in sub-distribution boards and near to terminal equipment.
It protects against indirect overvoltages. The protection cartridges are plug-in and can be easily replaced for quick servicing.

Operational characteristics

Maximum continuous voltage Uc: 320VAC/420VDC

Rated discharge current In (8/20μs): 20kA per pole

Maximum discharge current Imax: (8/20μs) 40kA per pole

Version with or without contact for remote status indication

Degree of protection: IP20.

Type 1, 2, 3 - Class B, C, D - With plug-in cartridge
The surge protection device type SA0 with plug-in cartridge combines the performance of SPD type 1, 2 and 3 into a single product.
It is ideal in all those systems of reduced extent, to protect the load side from the main circuit breaker downstream to terminal equipment.
It protects against direct and indirect lightning strikes as well as induced overvoltage conditions. It can be installed inside main distribution boards and near by terminal equipment. The protection cartridges are plug-in and can be easily replaced for quick servicing.

Operational characteristics

Maximum continuous voltage Uc: 320VAC/420VDC

Impulse current Iimp (10/350μs): 12.5kA per pole

Rated discharge current In (8/20μs): 25kA per pole

Maximum discharge current Imax (8/20μs): 60kA per pole

Combined surge Uoc/Isc (1.2/50, 8/20μs): 10kV/5kA

Standard-supplied contact for remote status indication

Degree of protection: IP20.

Type 2 DC - Class C PV for photovoltaic applications with plug-in cartridge
The surge protection device type SA2 D with plug-in cartridge for photovoltaic applications is suitable for installation on the DC side of a photvoltaic system and protects against induced overvoltage conditions.
The protection cartridges are plug-in and can be easily replaced for quick servicing.

Operational characteristics

Maximum continuous voltage Ucpv: 600VDC, 1000VDC, 1200VDC, 1500VDC

Rated discharge current In (8/20μs): 20kA per pole

Maximum discharge current Imax: (8/20μs) 40kA per pole

Temporary overvoltage (TOV) Ut: 1.5Ucpv (SA2 DA... type only)

Version with or without contact for remote status indication

Degree of protection: IP20.

Order code	Pole arrangement	Contact remote available	DIN size n°	Rated voltage Un [VAC]	Voltage protection level Up [kV]	Power installation systems
Type 1, 2 - Class B, C - Monoblock.
SA1 1P A320R	1P	Yes	2	230	<1.3	TN-C, TN-S, TT
SA1 1N A320R	1P+N	Yes	3	230	<1.4	TT, TN-S
SA1 2P A320R	2P	Yes	2	230	<1.4	TN-S
SA1 3P A320R	3P	Yes	3	230/400	<1.4	TN-C
SA1 3N A320R	3P+N	Yes	5	230/400	<1.4	TT, TN-S
SA1 4P A320R	4P	Yes	4	230/400	<1.4	TN-S
Type 2 - Class C - With plug-in cartridge.
SA2 1P A320	1P	-	1	230	<1.5	TN-C, TN-S, TT
SA2 1P A320R	1P	Yes	1	230	<1.5	TN-C, TN-S, TT
SA2 1N A320	1P+N	-	2	230	<1.5	TT, TN-S
SA2 1N A320R	1P+N	Yes	2	230	<1.5	TT, TN-S
SA2 2P A320	2P	-	2	230	<1.5	TN-S
SA2 2P A320R	2P	Yes	2	230	<1.5	TN-S
SA2 3P A320	3P	-	3	230/400	<1.5	TN-C
SA2 3P A320R	3P	Yes	3	230/400	<1.5	TN-C
SA2 3N A320	3P+N	-	4	230/400	<1.5	TT, TN-S
SA2 3N A320R	3P+N	Yes	4	230/400	<1.5	TT, TN-S
SA2 4P A320	4P	-	4	230/400	<1.5	TN-S
SA2 4P A320R	4P	Yes	4	230/400	<1.5	TN-S
Type 1, 2, 3 - Class B, C, D - With plug-in cartridge.
SA0 1P A320R	1P	Yes	1	230	<1.5	TN-C, TN-S, TT
SA0 1N A320R	1P+N	Yes	2	230	<1.5	TT, TN-S
SA0 2P A320R	2P	Yes	2	230	<1.5	TN-S
SA0 3P A320R	3P	Yes	3	230/400	<1.5	TN-C
SA0 3N A320R	3P+N	Yes	4	230/400	<1.5	TT, TN-S
SA0 4P A320R	4P	Yes	4	230/400	<1.5	TN-S

Order
code

Pole
arrangement

Contact remote available

DIN
size
n°

Rated
voltage Un
[VDC]

Continuous voltage Ucpv
[VDC]

Voltage protection level Up
[kV]

Type 2 DC - Class C PV for photovoltaic applications with plug-in cartridges.

SA2 DB 600

+, -, PE

-

2

600

600

<1.9

SA2 DB 600R

+, -, PE

Yes

2

600

600

<1.9

SA2 DB K00

+, -, PE

-

3

1000

1000

<3.6

SA2 DB K00R

+, -, PE

Yes

3

1000

1000

<3.6

Type 2 DC - Class C PV for photovoltaic applications with plug-in cartridges.
Version compliant UTE C 61740-51 Guide.

SA2 DA 600R

+, -, PE

-

2

600

600

<2.2

SA2 DA K00R

+, -, PE

Si

2

1000

1000

<2.8

SA2 DA K20R

+, -, PE

-

3

1200

1200

<4.4

SA2 DA K50R

+, -, PE

Si

3

1500

1500

<4.8

LOVATO Electric S.P.A.