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MERSENDIN Rail Internal-Mount SPDs

MERSEN Surge Protection Device: Three Phase, 120/208VAC Wye, 3 Poles, 2 Wires

The MERSEN STP208Y07M is a three-phase DIN Rail internal-mount surge protective device (SPD) for 120/208VAC Wye systems. It provides L-N mode protection with a voltage protection rating of 600V (L-N), a short-circuit…

SKU 3G-OTH-22938

Brand
MERSEN
Item
Surge Protection Device: Three Phase, 120/208VAC Wye, 3 Poles, 2 Wires
Category
DIN Rail Internal-Mount SPDs
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Technical Specifications

MERSEN
Manufacturer Part Number
STP208Y07M
Type
L-L/L-N, 208 V
Wye
120/208VAC
Poles
3
Wires
2
Voltage
120/208VAC Wye
Includes
Microswitch
Mounting Style
DIN Rail
Number of Wires
2 Wires
Modes of Protection
L-N
Voltage Protection Rating
600V (L-N)
Short Circuit Current Rating
200 kA
Max. Continuing Operating Voltage
208 V

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MERSEN Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The MERSEN STP208Y07M is a three-phase DIN Rail internal-mount surge protective device (SPD) for 120/208VAC Wye systems. It provides L-N mode protection with a voltage protection rating of 600V (L-N), a short-circuit current rating of 200 kA, and a maximum continuous operating voltage of 208 V. This 2-wire unit includes a microswitch for remote monitoring.

Frequently Asked Questions

What is the MERSEN STP208Y07M surge protection device used for?

The MERSEN STP208Y07M is a three-phase DIN Rail internal-mount SPD designed to protect electrical equipment in 120/208VAC Wye systems. It is commonly used in commercial and industrial facilities to safeguard sensitive electronics from transient overvoltages and lightning-induced surges.

What are the specifications of the MERSEN STP208Y07M?

The MERSEN STP208Y07M is a 3-pole, 2-wire SPD for 120/208VAC Wye systems. It offers L-N mode protection with a voltage protection rating of 600V (L-N), a short-circuit current rating of 200 kA, and a maximum continuous operating voltage of 208 V. It includes a microswitch for remote monitoring and mounts on a DIN rail.

Where to buy the MERSEN STP208Y07M worldwide?

You can source the MERSEN STP208Y07M through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we provide competitive pricing and reliable sourcing for this MERSEN SPD.

How to install the MERSEN STP208Y07M on a DIN rail?

To install the MERSEN STP208Y07M, snap the unit onto a standard DIN rail in your electrical panel. Ensure the system is de-energized before wiring. Connect the line and neutral conductors per the L-N mode configuration, and terminate the microswitch leads for remote monitoring. Follow local electrical codes and the manufacturer's instructions.

Used in

Common applications for MERSEN
Power electronics protection — MERSEN A70Q series semiconductor fuses in variable frequency drives for motor control.
Surge protection for industrial panels — MERSEN STP480D07 SPDs in three-phase 480V AC distribution boards.
Control circuit overcurrent protection — MERSEN ATM series midget fuses in PLC and instrumentation cabinets.
Power distribution in manufacturing — MERSEN FSPDB4A finger-safe blocks in motor control centers for wire management.
DC bus protection in renewable energy — MERSEN A30QS series fuses in solar inverter DC inputs.
High-voltage semiconductor protection — MERSEN A70Q series fuses in welding equipment power supplies.

MERSEN Products

3G Electric supplies MERSEN din rail internal-mount spds. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
MERSEN Surge Protection Device: Three Phase, 120/208V AC Wye, 4 Poles, 5 Wires, L-G/L-L/L-N/N-G (MPN STP208YN07)
MERSEN
MERSEN Surge Protection Device: Three Phase, 120/208V AC Wye, 4 Poles, 5 Wires, L-G/L-L/L-N/N-G (MPN STP208YN07)
MERSEN Surge Protection Device: Three Phase, 120/208V AC Wye, 3 Poles, 4 Wires, L-L/L-N, 200kA (MPN STP208Y07)
MERSEN
MERSEN Surge Protection Device: Three Phase, 120/208V AC Wye, 3 Poles, 4 Wires, L-L/L-N, 200kA (MPN STP208Y07)
MERSEN Surge Protection Device: Single Phase, 120/240V AC, 2 Poles, 3 Wires, L-L/L-N, 175/350 V AC (MPN STP240S07M)
MERSEN
MERSEN Surge Protection Device: Single Phase, 120/240V AC, 2 Poles, 3 Wires, L-L/L-N, 175/350 V AC (MPN STP240S07M)
MERSEN Surge Protection Device: Three Phase, 480V AC Wye, 3 Poles, 4 Wires, L-L/L-N, 320/640 V AC (MPN STP480Y07M)
MERSEN
MERSEN Surge Protection Device: Three Phase, 480V AC Wye, 3 Poles, 4 Wires, L-L/L-N, 320/640 V AC (MPN STP480Y07M)
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MERSEN
MERSEN Surge Protection Device: single Phase, 240/480VAC Split, 2 Poles, 2 Wires, L-L/L-N, 240/480 V (MPN STP480S07M)
MERSEN Surge Protection Device: Three Phase, 347/600V AC Wye, 3 Poles, 4 Wires, L-L/L-N, 200kA (MPN STP600Y07M)
MERSEN
MERSEN Surge Protection Device: Three Phase, 347/600V AC Wye, 3 Poles, 4 Wires, L-L/L-N, 200kA (MPN STP600Y07M)

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MERSEN Surge Protection Device: Single Phase, 120V AC, 1 Poles, 2 Wires, L-N, 175 V AC, 600V (L-N) (MPN STP120P07M)
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MERSEN Surge Protection Device: Single Phase, 120V AC, 1 Poles, 2 Wires, L-N, 175 V AC, 600V (L-N) (MPN STP120P07M)
MERSEN Surge Protection Device: Single Phase, 120/240V AC, 2 Poles, 3 Wires, L-L/L-N, 175/350 V AC (MPN STP240S07)
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MERSEN Surge Protection Device: Single Phase, 120/240V AC, 2 Poles, 3 Wires, L-L/L-N, 175/350 V AC (MPN STP240S07)
MERSEN Surge Protection Device: Three Phase, 480V AC Wye, 3 Poles, 4 Wires, L-L/L-N, 320/640 V AC (MPN STP480Y07)
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MERSEN Surge Protection Device: Three Phase, 480V AC Wye, 3 Poles, 4 Wires, L-L/L-N, 320/640 V AC (MPN STP480Y07)
MERSEN Surge Protection Device: Single Phase, 120V AC, 1 Poles, 2 Wires, L-N, 175 V AC, 600V (L-N) (MPN STP120P07)
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MERSEN Surge Protection Device: Single Phase, 120V AC, 1 Poles, 2 Wires, L-N, 175 V AC, 600V (L-N) (MPN STP120P07)
MERSEN Surge Protection Device: Single Phase, 230V AC, 1 Poles, 2 Wires, L-N, 275 V AC, 600V (L-N) (MPN STP230P07)
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MERSEN Surge Protection Device: Single Phase, 230V AC, 1 Poles, 2 Wires, L-N, 275 V AC, 600V (L-N) (MPN STP230P07)
MERSEN Surge Protection Device: Three Phase, 347/600V AC Wye, 4 Poles, 5 Wires, L-G/L-L/L-N/N-G (MPN STP600YN07)
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MERSEN Surge Protection Device: Three Phase, 347/600V AC Wye, 4 Poles, 5 Wires, L-G/L-L/L-N/N-G (MPN STP600YN07)
MERSEN Surge Protection Device: Three Phase, 347/600V AC Wye, 3 Poles, 4 Wires, L-L/L-N, 200kA (MPN STP600Y07)
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MERSEN Surge Protection Device: Three Phase, 347/600V AC Wye, 3 Poles, 4 Wires, L-L/L-N, 200kA (MPN STP600Y07)
MERSEN Surge Protection Device: Three Phase, 240V AC Delta, 3 Poles, 4 Wires, L-G/L-L, 275/550 V AC (MPN STP240D07)
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MERSEN Surge Protection Device: Three Phase, 240V AC Delta, 3 Poles, 4 Wires, L-G/L-L, 275/550 V AC (MPN STP240D07)