MERSEN Surge Protection Device: Three Phase, 240V AC Delta, 3 Poles, 4 Wires, L-G/L-L
The MERSEN STP240D07 is a three-phase, DIN-rail internal-mount surge protective device (SPD) for 240V AC Delta systems with 4 wires and 3 poles. It provides L-L mode protection, a voltage protection rating of 900V…
SKU 3G-OTH-22738
Local availability & support — Singapore
- Local office
- 20 Woodlands Link #09-05, Singapore 738733
- Phone
- +65 8878 8355
- Delivery
- Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
- Payment
- Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
- Ships to
- Singapore
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Product Description
The MERSEN STP240D07 is a three-phase, DIN-rail internal-mount surge protective device (SPD) for 240V AC Delta systems with 4 wires and 3 poles. It provides L-L mode protection, a voltage protection rating of 900V (L-G), a short-circuit current rating of 200kA, and a maximum continuous operating voltage of 275/550 V AC. The unit features a polyethylene terephthalate enclosure and no filtering.
Frequently Asked Questions
What is the MERSEN STP240D07 surge protection device used for?
The MERSEN STP240D07 is a three-phase DIN-rail SPD designed to protect electrical equipment in 240V AC Delta systems from transient overvoltages. It is commonly applied in industrial control panels, motor control centers, and distribution boards where reliable L-L mode protection is required.
What are the specifications of the MERSEN STP240D07?
The MERSEN STP240D07 is a 3-pole, 4-wire SPD for 240V AC Delta systems. It offers L-G/L-L protection with a voltage protection rating of 900V (L-G), a short-circuit current rating of 200kA, and a maximum continuous operating voltage of 275/550 V AC. The enclosure is polyethylene terephthalate.
Where to buy the MERSEN STP240D07 worldwide?
3G Electric supplies the MERSEN STP240D07 surge protection device to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this DIN-rail SPD.
How to install the MERSEN STP240D07 on a DIN rail?
To install the MERSEN STP240D07, mount it securely on a standard DIN rail inside your panel. Connect the line and neutral conductors per the L-L mode wiring diagram provided by MERSEN. Ensure the system is de-energized during installation and follow local electrical codes for SPD placement.
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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.
