
Mersen Modular Type 2+3 Surge Protection Device, 4 Module Three Phase TT/TN with Alarm Contact
- Brand:
- Mersen
- Part number:
- 83230129
- EAN:
- 8435297849315
Four-module combined Type 2+3 surge arrester for three-phase TT and TN systems, with replaceable cartridges and an alarm contact for remote end-of-life signalling.
- Combined Type 2+3 protection
- Three-phase TT and TN
- Four DIN modules
- Alarm contact fitted
- Replaceable cartridges
Out of stock
UK delivery £9.95 ex VAT, free on orders of £100 ex VAT or more; usually 2-3 working days.
Minimum order £50 ex VAT. All prices exclude VAT, which is added at checkout.
Project quantities or a lead time to check? Request a quote
Specifications
Electrical
| Supply | Three phase |
|---|---|
| Earthing system | TT, TN-S, TN-C-S (PME) |
| Earthing system (as supplied) | TT/TN |
| Remote signalling contact | Yes |
| Application | Mains AC |
Protection
| SPD type | Type 2+3 |
|---|
Dimensions
| DIN rail width | 4 modules |
|---|
Construction
| Replaceable protection module | Yes |
|---|
Fit
| Mounting | DIN rail |
|---|
Identification
| Brand | Mersen |
|---|---|
| Part number | 83230129 |
| EAN | 8435297849315 |
| Range | Mersen Surge-Trap T2+3 |
More technical data
| SPD class | combined Type 2 and Type 3 |
|---|---|
| System | three phase, TT and TN earthing systems |
| Width | 4 DIN modules |
| Status signalling | alarm contact fitted |
| Format | modular with replaceable protection cartridges |
Product details
Combined Type 2 and Type 3 devices do the distribution board job and the fine-protection job in one place, which is useful where the protected equipment sits close to the board. This four-module Mersen unit covers three-phase TT and TN systems and signals end of life through an alarm contact.
Key features
- Combined Type 2+3 / Class II+III protection for three-phase TT and TN systems
- Four DIN modules covering three line poles plus the neutral path
- Alarm contact for remote end-of-life signalling to a BMS, PLC or panel lamp
- Cartridge construction allows individual poles to be replaced in service
- Provides a finer protection level than a Type 2 only device
Typical applications
Suited to three-phase control and machine panels, process and automation cabinets, IT and comms distribution, outdoor lighting control panels and water industry installations where sensitive equipment is fed directly from the board. The alarm contact suits sites monitored from a SCADA or BMS head-end rather than inspected by eye.
Compliance
Combined Type 2 and Type 3 devices are classified under the BS EN 61643-11 series and are coordinated with any Type 1 protection installed at the origin. BS 7671 requires the risk from transient overvoltages to be assessed and coordinated protection provided where the consequences justify it.
Order today for fast UK dispatch, or contact us for the full ratings if you need them for a design submission.






