Mersen, STMT23 Surge Protector 275V ac Maximum Voltage Rating 20 kA Maximum Surge Current Type 2 Arrester, Type 3

View all Surge Suppressor Units
Bulk discount available

Subtotal (1 unit)*

£83.34

(exc. VAT)

£100.01

(inc. VAT)

Add to Basket
Select or type quantity
Temporarily out of stock
  • 4 unit(s) shipping from 15 May 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.

Units
Per unit
1 - 9£83.34
10 - 19£77.83
20 - 39£75.75
40 - 79£73.83
80 +£72.00

*price indicative

RS Stock No.:
179-3071
Mfr. Part No.:
83230511 / STMT23-20K275V-SP-SM
Brand:
Mersen
Find similar products by selecting one or more attributes.
Select all

Brand

Mersen

Product Type

Surge Protector

Suppressor Type

Type 2 Arrester, Type 3 Arrester

Maximum Voltage

275V ac

Mount Type

DIN Rail

Maximum Surge Current

20kA

Series

STMT23

Height

86mm

Standards/Approvals

IEC 61643-11, EN 61643-11

Depth

65mm

Length

18mm

Hazardous Area Certification

No

COO (Country of Origin):
ES
STM T23 20 S is the series of combined Type 2+3/Class II+III devices for discharging voltage surges while providing a very fine voltage protection level. Suitable as the final stage of protection in panels with Type 2 protection devices installed upstream. These SPDs should be installed as close as possible to the equipment being protected. Ideal for limited spaces. Wide range of voltage ratings

Remote Monitoring: Yes

Configeration: TT/TNS (1Ph+N)

Related links