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Surge-Trap® Monobloc STMT23 Series

Approvals & Standards
IEC 61643-11
EN 61643-11

Mersen’s Surge Trap STMT Series features low voltage surge protective devices suitable for both AC and DC voltage applications. This series is ideal for the protection of controls, power supplies, communication systems, and other sensitive equipment. With a slim design, these DIN-rail mount SPDs are ideal for limited space applications. The series is suitable for operating voltages of 12-230 VAC and 24-365 VDC and offers an optional dry contact feature for remote monitoring.

Mersen’s Surge Trap STMT Series features low voltage surge protective devices suitable for both AC and DC voltage applications. This series is ideal for the protection of controls, power supplies, communication systems, and other sensitive equipment. With a slim design, these DIN-rail mount SPDs are ideal for limited space applications. The series is suitable for operating voltages of 12-230 VAC and 24-365 VDC and offers an optional dry contact feature for remote monitoring.

Key features & benefits

  • Maximum discharge current (8/20μs): 6kA – 20kA

  • Nominal discharge current (8/20μs): 3kA – 10kA

  • Combined voltage pulse (1.2/50μs): 10kV, 6kV

  • Single phase networks

  • Un: 12V, 24V, 48V, 60V, 120V, 230V

  • Typically for use also in the corresponding DC voltages

  • DIN-rail mountable, monobloc format

  • Visual (LED) and remote end of life indicators

  • Power status (LED) indicator

  • Space saving “slim” format

  • Back-up fuse IEC: 63A gG)

Applications

  • Building

  • Outdoor LED Lighting

  • Photovoltaic and BESS

  • E-Mobility - EV Charging

  • Industry

  • Telecom

  • Water treatment

Technical Specifications
IEC SPD Type Class II + III
Format Slim Monobloc
Flammability Rating UL94 V-0
Reach Compliant Yes
Max Operating Temp. 85 °C

Reference Finder

12 references in this series

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Item number AC or DC Number of poles Enclosure NEMA Type Indication System Product weight
83230500 - STMT23-6K20V-SP-S See product
 AC 2-Pole - No 0.062kg
83230501 - STMT23-6K20V-SP-SM See product
 AC 2-Pole - Yes 0.068kg
83230502 - STMT23-6K150V-SP-S See product
 AC 2-Pole - No 0.062kg
83230503 - STMT23-6K150V-SP-SM See product
 AC 2-Pole - Yes 0.061kg
83230504 - STMT23-6K30V-SP-S See product
 AC 2-Pole - No 0.061kg
83230505 - STMT23-6K30V-SP-SM See product
 AC 2-Pole - Yes 0.068kg
83230506 - STMT23-6K60V-SP-S See product
 AC 2-Pole - No 0.062kg
83230507 - STMT23-6K60V-SP-SM See product
 AC 2-Pole - Yes 0.067kg
83230508 - STMT23-6K75V-SP-S See product
 AC 2-Pole - No 0.05kg
83230509 - STMT23-6K75V-SP-SM See product
 AC 2-Pole - Yes 0.067kg
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