2 Pole Type 2 Surge Protection Device – 40kA SPD (WSPD240)

The WSPD240 is a 2 Pole Type 2 Surge Protection Device designed to protect 230V electrical installations from transient overvoltages caused by power surges and lightning-related surge activity. With a 20kA nominal / 40kA maximum discharge rating, it is suited to board-level surge protection where a compact standalone SPD is required.

This 40kA SPD can be used in suitable consumer units, EV-ready boards, heat pump setups and distribution circuits where Type 2 surge protection is specified. Its 2-pole DIN rail format gives installers a practical single-phase surge protection device for 230V applications.

• 2 Pole Type 2 SPD – suitable for single-phase 230V surge protection applications
• 20kA nominal / 40kA maximum discharge rating – protects against transient overvoltages
• DIN rail mounted – compact 2-module format for board installation
• Standalone surge protection device – useful where a separate SPD is required
• Mechanical status indication – quick visual check during inspection
• 36mm wide body – compact 2-pole format
• IEC 61643-11 compliant – recognised SPD product standard

WSPD Type 2 Surge Protection Device Options

The WSPD240 gives installers a compact 2 pole SPD option for single-phase board-level surge protection where a separate DIN rail surge protection device is required.

• Model: WSPD240
• Product Type: Type 2 Surge Protection Device (SPD)
• Configuration: 2 Pole
• Discharge Current: 20kA nominal / 40kA maximum
• Voltage Rating: 230V AC
• Application: Standalone board-level surge protection
• Dimensions (W × H × D): 36 × 90 × 65mm
• Mounting: 35mm DIN rail
• Status Indicator: Mechanical red / green indicator
• Standards: IEC 61643-11

This WSPD240 Type 2 surge protection device is supplied as a standalone DIN rail SPD. It should be installed by a qualified electrician as part of a coordinated surge protection arrangement.

• Install as close as practical to the board or protected equipment
• Keep earth and connecting leads short and direct to reduce let-through voltage
• Confirm the SPD configuration is suitable for the earthing arrangement and board design
• Coordinate with upstream or downstream SPDs where required
• Check status indication after commissioning and during future maintenance

What is the WSPD240 surge protection device used for?

The WSPD240 is a 2 pole Type 2 SPD used to help protect 230V boards and connected equipment from transient overvoltages caused by power surges and lightning-related surge activity.

Is the WSPD240 a 2 pole SPD?

Yes. The WSPD240 is a 2 pole surge protection device with a 20kA nominal / 40kA maximum discharge rating.

What is the difference between WSPD140, WSPD240, WSPD340 and WSPD440?

WSPD140 is 1 pole, WSPD240 is 2 pole, WSPD340 is 3 pole and WSPD440 is 3P+N. The correct option depends on the board type and surge protection arrangement required.

Can I use this as a standalone surge protection device?

Yes. The WSPD240 is supplied as a standalone DIN rail SPD for suitable board-level surge protection applications.

What does the red / green indicator show?

The indicator provides a visual check of the SPD status. Green normally shows the device is operational, while red indicates the module needs attention or replacement.

Can I use this in an EV board or heat pump setup?

Yes, where a 2 pole Type 2 SPD is suitable for the board design. For complete pre-built options, see our surge protection range.