Single Module Type 2 Surge Protection Device (WSPD140)
18th Ed. Compliant
2-Year Warranty
UK Stock
Free Delivery £80+
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The WSPD140 is a compact single module Type 2 Surge Protection Device designed to help protect electrical installations against transient overvoltages caused by switching events and lightning-related surge activity. With a 20kA nominal discharge current and 40kA maximum discharge rating, it provides practical board-level surge protection in a space-saving DIN...
The WSPD140 is a compact single module Type 2 Surge Protection Device designed to help protect electrical installations against transient overvoltages caused by switching events and lightning-related surge activity. With a 20kA nominal discharge current and 40kA maximum discharge rating, it provides practical board-level surge protection in a space-saving DIN rail format.
This DIN rail SPD is suited to suitable consumer units, sub-boards, EV-ready systems and other installations where a compact surge protection module is required. Its single-module width makes it useful where enclosure space is limited but Type 2 surge protection is still needed.
Installer note: Compact SPD modules are commonly used where board space is tight or where a separate DIN rail surge protection device is preferred instead of a pre-built surge protection board.
- Single module Type 2 SPD – compact surge protection format
- 20kA nominal / 40kA maximum discharge rating – protection against transient overvoltages
- DIN rail mounted SPD – practical for consumer units and distribution boards
- Compact 1-module width – useful where enclosure space is limited
- Standalone surge protection module – suitable for separate SPD arrangements
- Mechanical status indication – visual inspection of SPD condition
- IEC 61643-11 compliant – recognised SPD standard
WSPD Type 2 SPD Range
| Product | Configuration | Dimensions | Typical Use |
|---|---|---|---|
| WSPD140 | 1P 20kA / 40kA Type 2 | 18 × 90 × 65mm | Compact single-module surge protection |
| WSPD240 | 2P 20kA / 40kA Type 2 | 36 × 90 × 65mm | Single-phase 230V boards and consumer units |
| WSPD340 | 3P 20kA / 40kA Type 2 | 54 × 90 × 65mm | Three-phase surge protection applications |
| WSPD440 | 3P+N 20kA / 40kA Type 2 | 72 × 90 × 65mm | Three-phase and neutral surge protection |
Compact DIN Rail Surge Protection
A compact DIN rail surge protection device can be useful where a board or enclosure has limited spare space but surge protection is still required under the installation design.
The WSPD140 provides a practical single module SPD option for board-level surge protection within suitable domestic and commercial electrical systems.
It is commonly used inside consumer units, sub-boards and other DIN rail assemblies where a standalone Type 2 SPD module is preferred.
What is the WSPD140 used for?
The WSPD140 is a compact single module Type 2 surge protection device used to help protect electrical systems from transient overvoltages and surge activity.
Is the WSPD140 DIN rail mounted?
Yes. The WSPD140 is designed for installation onto a standard 35mm DIN rail inside a suitable enclosure or consumer unit.
What is the difference between the WSPD140 and WSPD240?
The WSPD140 is a single-module 1-pole SPD, while the WSPD240 is a 2-pole Type 2 SPD for broader single-phase surge protection arrangements.
What surge rating does the WSPD140 have?
The WSPD140 has a 20kA nominal discharge current and 40kA maximum discharge rating.
Can this SPD be used in EV or heat pump installations?
Yes, where a compact Type 2 SPD module is suitable for the board design and surge protection arrangement.
What does the status indicator show?
The mechanical status indicator provides a visual check of the SPD condition during inspection and maintenance.
- Model: WSPD140
- Product Type: Type 2 Surge Protection Device (SPD)
- Configuration: 1 Pole
- Nominal Discharge Current (In): 20kA
- Maximum Discharge Current (Imax): 40kA
- Voltage Rating: 230V AC
- Dimensions (W × H × D): 18 × 90 × 65mm
- Mounting: 35mm DIN rail
- Application: Compact board-level surge protection
- Status Indicator: Mechanical red / green indicator
- Standards: IEC 61643-11 / EN 61643-11
The WSPD140 single module SPD should be installed by a qualified electrician in accordance with the installation design, current wiring regulations and manufacturer guidance.
- Install as close as practical to the protected board or equipment
- Keep earth and connecting conductors short and direct
- Mount onto a standard 35mm DIN rail
- Check SPD status indication during commissioning and inspection
- Coordinate with upstream or downstream surge protection where required
- Install inside a suitable enclosure or consumer unit
Specification note: Surge protection requirements depend on the installation type, risk assessment and board arrangement. Always confirm the SPD specification suits the intended application.
