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MERSEN Surge Protection Device: Single Phase, 277V AC, 1 Poles, 2 Wires, L-N, 320 V AC - DIN Rail Internal-Mount SPDs
MERSENDIN Rail Internal-Mount SPDs

MERSEN Surge Protection Device: Single Phase, 277V AC, 1 Poles, 2 Wires, L-N, 320 V AC

The MERSEN STP277P07M is a single-phase, DIN-rail internal-mount surge protective device (SPD) rated for 277V AC with a 200kA short-circuit current rating. It provides L-N mode protection with a voltage protection…

SKU 3G-OTH-22756

Brand
MERSEN
Item
Surge Protection Device: Single Phase, 277V AC, 1 Poles, 2 Wires, L-N, 320 V AC
Category
DIN Rail Internal-Mount SPDs
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Technical Specifications

MERSEN
Manufacturer Part Number
STP277P07M
Type
L-N, 600V (L-N)
AC
277V
Poles
1
Wires
2
Voltage
277V AC
Includes
Form C Dry Contact
Filtering
No
Mounting Style
DIN-Rail
Number of Wires
2 Wires
Enclosure Material
Polyethylene Terephthalate
Modes of Protection
L-N
Voltage Protection Rating
600V (L-N)
Short Circuit Current Rating
200kA
Max. Continuing Operating Voltage
320 V AC
View Full Spec Sheet

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

Product Description

The MERSEN STP277P07M is a single-phase, DIN-rail internal-mount surge protective device (SPD) rated for 277V AC with a 200kA short-circuit current rating. It provides L-N mode protection with a voltage protection rating of 600V (L-N) and a maximum continuous operating voltage of 320 V AC. This 2-wire, 1-pole unit includes a Form C dry contact and features a polyethylene terephthalate enclosure.

Frequently Asked Questions

What is the MERSEN STP277P07M surge protection device used for?

The MERSEN STP277P07M is a single-phase, DIN-rail internal-mount surge protective device (SPD) used to protect electrical equipment from voltage transients and surges in L-N mode. It is rated for 277V AC systems and is commonly applied in commercial and industrial power distribution panels.

What are the specifications of the MERSEN STP277P07M?

The MERSEN STP277P07M is a 1-pole, 2-wire SPD rated for 277V AC with a maximum continuous operating voltage of 320 V AC. It offers L-N mode protection with a voltage protection rating of 600V (L-N) and a short-circuit current rating of 200kA. It includes a Form C dry contact and has a polyethylene terephthalate enclosure.

Where to buy the MERSEN STP277P07M worldwide?

3G Electric supplies the MERSEN STP277P07M surge protection device to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us for pricing and lead time on this DIN-rail SPD.

How to install the MERSEN STP277P07M on a DIN rail?

To install the MERSEN STP277P07M, mount it securely onto a standard DIN rail inside your panel. Connect the L-N wires per the manufacturer's wiring diagram, ensuring the system is de-energized. The Form C dry contact can be wired for remote monitoring. Always follow local electrical codes and the product manual.

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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MERSEN Surge Protection Device: Single Phase, 277V AC, 1 Poles, 2 Wires, L-N, 320 V AC, 600V (L-N) (MPN STP277P07). Key specifications — Voltage: 277V AC; Number of Wires: 2 Wires; Modes of Protection: L-N; Max. Continuing Operating Voltage: 320 V AC; Voltage Protection Rating: 600V (L-N); Short Circuit Current Rating: 200kA; Filtering: No; Enclosure Material: Polyethylene Terephthalate.
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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). Key specifications — Voltage: 240V AC Delta; Number of Wires: 4 Wires; Modes of Protection: L-L; Max. Continuing Operating Voltage: 275/550 V AC; Voltage Protection Rating: 900V (L-G); Short Circuit Current Rating: 200kA; Filtering: No; Enclosure Material: Polyethylene Terephthalate.
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