MERSEN Surge Protection Device: Single Phase, 120/240V AC, 2 Poles, 3 Wires, L-L/L-N
The MERSEN STP240S07M is a single-phase, DIN-rail internal-mount surge protective device (SPD) rated for 120/240V AC, 3-wire, 2-pole configurations. It provides L-N mode protection with a voltage protection rating of…
SKU 3G-OTH-22555
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- Delivery
- Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
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- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
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Product Description
The MERSEN STP240S07M is a single-phase, DIN-rail internal-mount surge protective device (SPD) rated for 120/240V AC, 3-wire, 2-pole configurations. It provides L-N mode protection with a voltage protection rating of 600V (L-N), a short-circuit current rating of 200kA, and a maximum continuous operating voltage of 175/350V AC. This unit includes a Form C dry contact and is housed in a polyethylene terephthalate enclosure.
Frequently Asked Questions
What is the MERSEN STP240S07M surge protection device used for?
The MERSEN STP240S07M is a single-phase, DIN-rail internal-mount SPD used to protect electrical equipment from voltage surges in 120/240V AC, 3-wire, 2-pole systems. It is commonly installed in industrial control panels, distribution boards, and commercial facilities to safeguard sensitive electronics against transient overvoltages.
What are the specifications of the MERSEN STP240S07M?
The MERSEN STP240S07M is rated for 120/240V AC, 2 poles, 3 wires, with L-N mode protection. Key specs include a maximum continuous operating voltage of 175/350 V AC, voltage protection rating of 600V (L-N), short-circuit current rating of 200kA, and a Form C dry contact. It has a polyethylene terephthalate enclosure and no filtering.
Where to buy the MERSEN STP240S07M worldwide?
You can source the MERSEN STP240S07M 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 supply genuine MERSEN surge protection devices for international orders.
How to install the MERSEN STP240S07M surge protection device?
Install the MERSEN STP240S07M on a standard DIN rail inside an electrical panel. Ensure the system is de-energized, then connect the L and N conductors per the wiring diagram. The Form C dry contact can be wired to a monitoring system. Follow local electrical codes and the manufacturer's instructions for proper placement and grounding.
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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.
