MODEL: MAT2

MAT2 SPECIFICATIONS

ES-8149 Rev.12 Page 1/5

https://www.m-system.co.jp/

Lightning Surge Protectors for

Electronics Equipment M-RESTER

LIGHTNING SURGE PROTECTOR

FOR THREE-PHASE POWER SUPPLY

Functions & Features

• Connected in parallel between the power and earth lines

regardless of load current

• Applicable to single phase 2/3-wire and threephase 3/4-

wire system

• High discharge current capacity 20 kA or 40 kA (8/20 μs)

• Degraded head element is automatically separated from

the power lines by the incorporated thermal breaker, and

the LED lamp (turns off) and the relay contact alerts the

failure status.

• Complies with IEC 61643-1 Class II

Typical Applications

• Low-voltage distribution board

• Combination with installation for large load current

50 [1.97]

mm [inch]

98

[3.86]

60 [2.36]

MODEL: MAT2–[1][2][3][4]

ORDERING INFORMATION

• Code number: MAT2-[1][2][3][4]

Specify a code from below for each of [1] through [4].

(e.g. MAT2-2403MY)

[1] OPERATIONAL VOLTAGE

240: 240 V AC

440: 440 V AC

[2] POWER SYSTEM

3: Single-phase 2/3-wire, Three-phase 3-wire

(Select ‘240’ for ‘Operational voltage’ code.)

4: Single-phase 2/3-wire, Three-phase 3/4-wire

[3] MAXIMUM DISCHARGE CURRENT

M: 20kA (8/20 μsec.)

H: 40kA (8/20 μsec.)

[4] ALARM OUTPUT

A: With

Y: Without

GENERAL SPECIFICATIONS

Construction: Standalone; terminal access at the front

Degree of protection: IP20 (If the solderless terminals are

covered with insulation tubes.)

Surge protection type: Voltage limiting type one-port SPD

Connection

Line: M5 screw terminal (torque: 2.5 N·m)

Alarm output: Tension clamp

Applicable wire size

Line: See the drawing below.

Screw terminal

Line: Nickel-plated steel

Alarm output: Tin-plated copper alloy

Housing material: Flame-resistant resin (black)

Alarm output: SPDT relay contact trips when the thermal

breaker operates.

OUTPUT TERMINAL A1 – C

Normal: Open

Failure or power off: Close

OUTPUT TERMINAL A2 – C

Normal: Close

Failure or power off: Open

Rated load:

250 V AC @1 A (resistive load)

24 V DC @1 A (resistive load)

Safety function: Thermal breaker incorporated

Monitor LED: Green LED turns on during normal condition

and turns off during failure condition, power off or the

thermal breaker operating.

F

d : M5 use

B ≤ 13.0 mm

F ≥ 7.0 mm

(F ≥ 8.2 mm for sharing terminals)

T ≤ 1.8 mm

• Applicable Solderless Terminal Size

diameter d