Catalog
Surge Protection for Power Lines
NEMA UL/CSA Type 1

Surge-Trap® STZ Series (External SPD) - 450kA
The Mersen flagship for facility-wide protection, The Surge-Trap® Type 1 STZ Series features surge capacities up to 450kA designed with Mersen’s industry leading TPMOV® technology inside making it the safest and most reliable product on the market. Options include surge counter, through the door disconnect switch, audible alarm, dry contact and EMI/RFI filtering. This external SPD can be installed on the line or load side of the service entrance.
FEATURES
- • Type 1 SPD for service entrance and facility-wide protection
- • Ideal for new construction bid projects and specification as well as existing facility retrofit
- • Designed with the industry leading Mersen TPMOV® Technology (internally fused)
- • Available with accessory Option A for basic features (LED status indicators) and Option B for standard features (EMI/RFI filter, surge counter with reset, Audible alarm and dry contacts with silence)
- • Replaceable SPD module
- • SPD module can be rotated 90 degrees depending on desired cable entry location
- • Available with or without disconnect switch
- • For use in ANSI/UL Type 1 or 2 SPD installations
- • Up to 10 Modes of Protection (L-N, L-L, L-G, N-G)
- • 15-year warranty
PRODUCT DETAILS
- Voltage Range (VAC) 208 - 480 VAC
- Mounting Wall
- Connection Terminal Type Box
-
Body Material
Steel
Stainless Steel - SCCR 200 kA
- Operating Temp °C (Min/Max) -40 to +85 °C
- Storage Temp °C (Min/Max) -40 to +85 °C
- Wiring Range 6-10 AWG Copper
- Nominal discharge current 20 kA
-
Enclosure
NEMA 1/12/3R/4
NEMA 4X Stainless Steel -
Switchability
No
Yes -
Standards
• ANSI/UL 1449 4th Edition - Type 1 SPD - File E210793
• CSA C22.2 - Type 1 SPD
• ANSI/IEEE C62.41.1 - C62.41.2 - C62.45
• UL96A Lightning Protection - Application Suitable for any Type 1 or 2 SPD application
- ROHS Compliant Yes
- Lead Free Yes
- CE conformity Consult Technical Services
Catalog-Reference
- STZ208Y10A1
- STZ208Y10A1T
- STZ208Y10AX
- STZ208Y10AXT
- STZ208Y10B1
- STZ208Y10B1T
- STZ208Y10BX
- STZ208Y10BXT
- STZ208Y15A1
- STZ208Y15A1T
- STZ208Y15AX
- STZ208Y15AXT
- STZ208Y15B1
- STZ208Y15B1T
- STZ208Y15BX
- STZ208Y15BXT
- STZ208Y20A1
- STZ208Y20A1T
- STZ208Y20AX
- STZ208Y20AXT
- STZ208Y20B1
- STZ208Y20B1T
- STZ208Y20BX
- STZ208Y20BXT
- STZ208Y30A1
- STZ208Y30A1T
- STZ208Y30AX
- STZ208Y30AXT
- STZ208Y30B1
- STZ208Y30B1T
- STZ208Y30BX
- STZ208Y30BXT
- STZ208Y45A1
- STZ208Y45A1T
- STZ208Y45AX
- STZ208Y45AXT
- STZ208Y45B1
- STZ208Y45B1T
- STZ208Y45BX
- STZ208Y45BXT
- STZ240D10A1
- STZ240D10A1T
- STZ240D10AX
- STZ240D10AXT
- STZ240D10B1
- STZ240D10B1T
- STZ240D10BX
- STZ240D10BXT
- STZ240D15A1
- STZ240D15A1T
- STZ240D15AX
- STZ240D15AXT
- STZ240D15B1
- STZ240D15B1T
- STZ240D15BX
- STZ240D15BXT
- STZ240D20A1
- STZ240D20A1T
- STZ240D20AX
- STZ240D20AXT
- STZ240D20B1
- STZ240D20B1T
- STZ240D20BX
- STZ240D20BXT
- STZ240D30A1
- STZ240D30A1T
- STZ240D30AX
- STZ240D30AXT
- STZ240D30B1
- STZ240D30B1T
- STZ240D30BX
- STZ240D30BXT
- STZ240D45A1
- STZ240D45A1T
- STZ240D45AX
- STZ240D45AXT
- STZ240D45B1
- STZ240D45B1T
- STZ240D45BX
- STZ240D45BXT
- STZ240S10A1
- STZ240S10A1T
- STZ240S10AX
- STZ240S10AXT
- STZ240S10B1
- STZ240S10B1T
- STZ240S10BX
- STZ240S10BXT
- STZ240S15A1
- STZ240S15A1T
- STZ240S15AX
- STZ240S15AXT
- STZ240S15B1
- STZ240S15B1T
- STZ240S15BX
- STZ240S15BXT
- STZ240S20A1
- STZ240S20A1T
- STZ240S20AX
- STZ240S20AXT
- STZ240S20B1
- STZ240S20B1T
- STZ240S20BX
- STZ240S20BXT
- STZ240S30A1
- STZ240S30A1T
- STZ240S30AX
- STZ240S30AXT
- STZ240S30B1
- STZ240S30B1T
- STZ240S30BX
- STZ240S30BXT
- STZ240S45A1
- STZ240S45A1T
- STZ240S45AX
- STZ240S45AXT
- STZ240S45B1
- STZ240S45B1T
- STZ240S45BX
- STZ240S45BXT
- STZ480D10A1
- STZ480D10A1T
- STZ480D10AX
- STZ480D10B1
- STZ480D10B1T
- STZ480D10BX
- STZ480D20A1
- STZ480D20A1T
- STZ480D20AX
- STZ480D20B1
- STZ480D20B1T
- STZ480D20BX
- STZ480D30A1
- STZ480D30A1T
- STZ480D30AX
- STZ480D30B1
- STZ480D30B1T
- STZ480D30BX
- STZ480Y10A1
- STZ480Y10A1T
- STZ480Y10AX
- STZ480Y10B1
- STZ480Y10B1T
- STZ480Y10BX
- STZ480Y15A1
- STZ480Y15A1T
- STZ480Y15AX
- STZ480Y15B1
- STZ480Y15B1T
- STZ480Y15BX
- STZ480Y20A1
- STZ480Y20A1T
- STZ480Y20AX
- STZ480Y20B1
- STZ480Y20B1T
- STZ480Y20BX
- STZ480Y30A1
- STZ480Y30A1T
- STZ480Y30AX
- STZ480Y30B1
- STZ480Y30B1T
- STZ480Y30BX
- STZ480Y45A1
- STZ480Y45A1T
- STZ480Y45AX
- STZ480Y45B1
- STZ480Y45B1T
- STZ480Y45BX
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