DEHN Type 3 Surge Protection Device with Remote Signalling, 2 Module Three Phase 25A
- Brand:
- DEHN
- Part number:
- 953405
- EAN:
- 4013364115774
Three-phase Type 3 surge arrester for 25A loads in two DIN modules, with monitoring contacts so an expired protection module can be alarmed remotely.
- Type 3 point-of-use protection
- Three phase, 25A load rating
- Monitoring contacts for remote alarm
- Two DIN modules
10 in 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
| Rated current | 25 A |
|---|---|
| Supply | Three phase |
| Earthing system | TT, TN-S, TN-C-S (PME) |
| Earthing system (as supplied) | All earthing systems |
| Remote signalling contact | Yes |
| Application | Mains AC |
Protection
| SPD type | Type 3 |
|---|
Dimensions
| DIN rail width | 2 modules |
|---|
Construction
| Replaceable protection module | Yes |
|---|
Fit
| Mounting | DIN rail |
|---|
Identification
| Brand | DEHN |
|---|---|
| Part number | 953405 |
| EAN | 4013364115774 |
| Range | DEHNrail |
More technical data
| SPD class | Type 3 (point-of-use) |
|---|---|
| Configuration | three phase, 25A |
| Status signalling | local indication plus monitoring (remote signalling) contacts |
| Width | 2 DIN modules |
Product details
Point-of-use protection for three-phase plant, with the addition of monitoring contacts. This two-module DEHN Type 3 arrester protects 25A three-phase circuits and can report its own end of life to a control system, which is the difference between knowing your protection is live and assuming it is.
Key features
- Type 3 fine protection for three-phase circuits rated up to 25A
- Monitoring contacts for remote signalling into a BMS, PLC or alarm panel
- Two DIN modules, mounting alongside the rest of the machine panel switchgear
- Local indication retained for visual checks during maintenance
- Supports planned module replacement instead of reactive fault finding
Typical applications
Fit it in process and production panels where an unnoticed failure carries a real cost: bottling and packaging lines, cold stores and refrigeration packs, water and effluent pumping, air handling plant, and any unattended three-phase machine monitored from a SCADA or BMS head-end. The signalling contact commonly goes to a spare input already available on the panel controller.
Compliance
Type 3 protection is the fine-protection class in the BS EN 61643-11 series and is coordinated with the Type 2 device upstream. BS 7671 requires transient overvoltage risk to be assessed and surge protection provided where the consequences justify it.
Order today for fast UK dispatch, or contact us if you need the contact ratings for a panel schedule.
