FEATURES BENEFITS

Capability to clamp and withstand high-energy transients

Ensures low-residual voltage during high-energy surge events and higher nominal discharge current

to prevent disruption, downtime, and degradation or damage to equipment

UL and VDE-IEC compliant in single part number One component can be utilized globally, reducing inventory needs and simplifying allocation of parts

Interlocking tab mechanism Secures module to withstand vibration

No additional overcurrent protection devices required in UL applications Reduces the number of components and costs required for protection

SPD type and voltage-coded plug-in module

Prevents speciﬁc SPD/voltage module from being plugged into wrong base. Eliminates risk of

improper protection

Compact footprint Increases panel design ﬂexibility

Visual life indicator Quick visual determines module replacement status to avoid loss of protection

Pluggable module Fast and simple to replace, minimizing maintenance and downtime. No tools required

Thermal protection Eliminates catastrophic failure

IP20 protection rating Finger-safe design increases worker protection

Littelfuse SPD2 Series Type 2 Surge Protection Devices (SPDs) for branch circuits safeguard components from transient overvoltage or surges

by limiting the fault current to a load or the unit being protected. Surges may be caused by an indirect lightning strike but, the majority—sixty to

eighty percent

—are caused by equipment being turned on or off within a facility. These surges damage components costing money to repair or

replace as well as create unplanned downtime resulting in unfulﬁlled orders, missed deadlines, unreliable systems and/or dangerous situations.

The DIN-rail mounted SPDs are available in a wide range of operating voltages and include solar applications. They are ideal for:

Power Distribution

■ Load Centers

■ Transformers

■ Generators

HVAC or Medical

Equipment

[1] National Electrical Safety Month 2015, Electrical Safety Foundation International Surge and Protect.

Available: https://www.esﬁ.org/resource/surge-and-protect-413

Computers and Communications

■ LANs

■ WANs

■ Intercoms

■ Fire, Security, UPS or Building

Management Systems

Industrial Controls

■ Programmable Logic Controllers

■ Motor Controls

■ Variable-Frequency Drives

■ Proximity Sensors

■ Barcoding Equipment

■ Machine Vision Systems

Electrical Loads

■ Motors

■ Fans

■ Heaters

■ Blowers

■ Ballasts

www.Littlefuse.com/SPD

SURGE A PATH

TO PROTECTION

SPD2

Series

IEC Module & Base Ordering Information

SPD2 Series

(XP+0)

Ordering

Number

IEC Electrical Speciﬁcations

Nominal

Voltage

(50/60 Hz)

(Uo/Un)

Maximum

Continuous

Operating

AC Voltage

(Uc)

Nominal

Discharge

Current

(8/20 μs)

(In)

Maximum

Discharge

Current

(8/20 μs)

(Imax)

Voltage

Protection

Level

(Up)

Short-Circuit

Current

Rating

(ISCCR)

TOV

Withstand

5 s

(UT)

TOV

120 min

(UT) /

Mode

SPD2-075-1P0-R 60 V 75 V 20 kA 50 kA 800 V 25 kA / 50 kA 114 V 114 V / Withstand

SPD2-150-1P0-R 120 V 150 V 20 kA 50 kA 1250 V 25 kA / 50 kA 229 V 229 V / Withstand

SPD2-300-1P0-R 240 V 300 V 20 kA 50 kA 1500 V 25 kA / 50 kA 337 V 442 V / Safe Fail

SPD2-350-1P0-R 277 V 350 V 20 kA 50 kA 1750 V 25 kA / 50 kA 403 V 529 V / Safe Fail

SPD2-480-1P0-R 400 V 480 V 20 kA 50 kA 2300 V 25 kA / 50 kA 581 V 762 V / Safe Fail

SPD2-550-1P0-R* 480 V 550 V 20 kA 50 kA 2500 V 25 kA / 50 kA 697 V 915 V / Safe Fail

SPD2-750-1P0-R 600 V 750 V 20 kA 35 kA 3400 V 25 kA / 50 kA 871 V 1143 V / Safe Fail

SPD2-150-2P0-R 120 V 150 V 20 kA 50 kA 1250 V 25 kA / 50 kA 229 V 229 V / Withstand

SPD2-300-2P0-R 240 V 300 V 20 kA 50 kA 1500 V 25 kA / 50 kA 337 V 442 V / Safe Fail

SPD2-350-2P0-R 277 V 350 V 20 kA 50 kA 1750 V 25 kA / 50 kA 403 V 529 V / Safe Fail

SPD2-480-2P0-R 400 V 480 V 20 kA 50 kA 2300 V 25 kA / 50 kA 581 V 762 V / Safe Fail

SPD2-550-2P0-R* 480 V 550 V 20 kA 50 kA 2500 V 25 kA / 50 kA 697 V 915 V / Safe Fail

SPD2-750-2P0-R 600 V 750 V 20 kA 35 kA 3400 V 25 kA / 50 kA 871 V 1143 V / Safe Fail

SPD2-150-3P0-R 120 V 150 V 20 kA 50 kA 1250 V 25 kA / 50 kA 229 V 229 V / Withstand

SPD2-300-3P0-R 240 V 300 V 20 kA 50 kA 1500 V 25 kA / 50 kA 337 V 442 V / Safe Fail

SPD2-350-3P0-R 277 V 350 V 20 kA 50 kA 1750 V 25 kA / 50 kA 403 V 529 V / Safe Fail

SPD2-480-3P0-R 400 V 480 V 20 kA 50 kA 2300 V 25 kA / 50 kA 581 V 762 V / Safe Fail

SPD2-550-3P0-R* 480 V 550 V 20 kA 50 kA 2500 V 25 kA / 50 kA 697 V 915 V / Safe Fail

SPD2-750-3P0-R 600 V 750 V 20 kA 35 kA 3400 V 25 kA / 50 kA 871 V 1143 V / Safe Fail

SPD2-150-4P0-R 120 V 150 V 20 kA 50 kA 1250 V 25 kA / 50 kA 229 V 229 V / Withstand

SPD2-300-4P0-R 240 V 300 V 20 kA 50 kA 1500 V 25 kA / 50 kA 337 V 442 V / Safe Fail

SPD2-350-4P0-R 277 V 350 V 20 kA 50 kA 1750 V 25 kA / 50 kA 403 V 529 V / Safe Fail

SPD2-480-4P0-R 400 V 480 V 20 kA 50 kA 2300 V 25 kA / 50 kA 581 V 762 V / Safe Fail

SPD2-550-4P0-R* 480 V 550 V 20 kA 50 kA 2500 V 25 kA / 50 kA 697 V 915 V / Safe Fail

*Products are UL Listed only

SPD2 Series

(XP+1)

Ordering

Number

IEC Electrical Speciﬁcations

Nominal

AC Voltage

(50/60 Hz)

(Uo/Un)

Maximum

Continuous

Operating

AC Voltage

(L-N / N-PE UC)

Nominal

Discharge

Current

(8/20 μs)

(L-N /

N-PE In)

Maximum

Discharge

Current

(8/20 μs)

(L-N / N-PE

Imax)

Voltage

Protection

Level

(L-N / N-PE Up)

Current

Interrupt

Rating

(N-PE In)

Short-Circuit

Current

Rating

(L-N ISCCR)

TOV

Withstand

5 s

(L-N UT)

TOV

120 min

(L-N UT) / Mode

TOV

Withstand

200 ms

(N-PE UT)

SPD2-075-1P1-R

60 V 75 V / 305 V

20 kA / 40 kA 50 kA / 65 kA 800 V / 1500 V 100 ARMS 25 kA / 50 kA 114 V 114 V / Withstand 1200 V

SPD2-150-1P1-R

120 V 150 V / 305 V

20 kA / 40 kA 50 kA / 65 kA 1250 V / 1500 V 100 ARMS 25 kA / 50 kA 229 V 229 V / Withstand 1200 V

SPD2-300-1P1-R

240 V 300 V / 305 V

20 kA / 40 kA 50 kA / 65 kA 1500 V / 1500 V 100 ARMS 25 kA / 50 kA 337 V 442 V / Safe Fail 1200 V

SPD2-350-1P1-R

277 V 350 V / 305 V

20 kA / 40 kA 50 kA / 65 kA 1750 V / 1500 V 100 ARMS 25 kA / 50 kA 403 V 529 V / Safe Fail 1200 V

SPD2-300-3P1-R

240 V 300 V / 305 V

20 kA / 40 kA 50 kA / 65 kA 1500 V / 1500 V 100 ARMS 25 kA / 50 kA 337 V 442 V / Safe Fail 1200 V

SPD2-350-3P1-R

277 V 350 V / 305 V

20 kA / 40 kA 50 kA / 65 kA 1750 V / 1500 V 100 ARMS 25 kA / 50 kA 403 V 529 V / Safe Fail 1200 V

SPD2 PV

Series

Ordering

Number

IEC Electrical Speciﬁcations

Maximum Continuous

Operatins DC Voltage

(UCPV)

Nominal

Discharge Current

(8/20 μs)

(In)

Maximum

Discharge Current

(8/20 μs)

(Imax)

Total

Discharge Current

(ITOTAL)

Voltage

Protection Level

(Up)

Short-Circuit

Current

Rating

(ISCPV)

SPD2-PV11-3P0-R 1100 V 20 kA 40 kA 50 kA 3800 V 11 kA

SPD2-PV15-3P0-R 1500 V 20 kA 30 kA 40 kA 5000 V 11 kA

For IEC product weight, refer to corresponding product number on UL chart.

Module & Base Part Numbering Systems

SPD2 VVV XPZ R

Module & Base

Series

Neutral

Number of Poles

Maximum Continuous

Operating AC Voltage

(1=yes or 0=no)

SPD2 PV VV XPZ R

Optional Remote Contact

Series

Number of Poles

Photovoltaic

Maximum Continuous Operating

DC Voltage in Hundreds

Neutral

(1=yes or 0=no)