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MODEL: MAL MAL SPECIFICATIONS ES-8162 Rev.2 Page 1/6 https://www.m-system.co.jp/ Lightning Surge Protectors for Electronics Equipment M-RESTER ONE-PORT SURGE PROTECTOR FOR POWER SUPPLY USE (class I) Functions & Features

  • Designed to protect electronics equipment from direct lightning surges entering through power supply cables.
  • Connected in parallel between the power and ground lines regardless of load current
  • High discharge current capacity of 25 kA (10/350 μsec.)
  • Detect degraded discharge element, with a relay contact output to alert the failure status. Typical Applications
  • Installation in service entrance switch gear [3.86] [2.52] mm [inch] 35 [1.38] MODEL: MAL–[1][2]

ORDERING INFORMATION

  • Code number: MAL-[1][2] Specify a code from below for each of [1] and [2]. (e.g. MAL-230Y) [1] OPERATIONAL VOLTAGE 230: 230 V AC 400: 400 V AC [2] ALARM OUTPUT A: With Y: Without (Select '230' for 'Operational Voltage' code.)

RELATED PRODUCTS

  • Wiring bridge (model: CNB2)
  • One-port surge protector between N and PE (model: MALN) ■ Coordination of surge protector (Class II) Unnecessary when this surge protector and the device to protect are adjacent (less than 10 m).
  • One-port surge protector for power supply use (model: MAKF)
  • One-port surge protector between N and PE (model: MAKN)
  • Lightning surge protector for three-phase power supply (model: MAT2) GENERAL SPECIFICATIONS Degree of protection: IP20 Surge protection type: Voltage switching type one-port SPD (IEC 61643-1) Discharge element: Gas discharge tube Connection Line: Push-lock screw terminal (torque: 4.5 N·m) Alarm output: Euro type connector terminal (torque: 0.25 N·m) Applicable wire size Line connection: 8 - 35 mm2, stripped length 15 mm Alarm output: 0.2 - 1.5 mm2, stripped length 7 mm Housing material: Flame-resistant resin Alarm output: Trips when the thermal breaker operates. (N.C. contact) Rated load: 250 V AC @ 0.5 A INSTALLATION Operating temperature: -5 to +55°C (23 to 131°F) Operating humidity: 30 to 90 %RH (non-condensing) Mounting: DIN rail Weight: 230 g (0.51 lb)

MODEL: MAL MAL SPECIFICATIONS ES-8162 Rev.2 Page 2/6 https://www.m-system.co.jp/ PERFORMANCE Response time: ≤ 50 nsec. Follow current interrupting rating

  • MAL-230x: 4 kA
  • MAL-400A: 0.75 kA Maximum discharge current: 25 kA (10/350 μsec.) Insulation resistance: ≥ 100 MΩ with 500 V DC (line to alarm output) Dielectric strength: 2000 V AC @ 1 minute (line to alarm output) Surge protection: IEC 61643-1 Class I MODEL Uc (AC) (V) DISCHARGE VOLTAGE (V min) Up (V max) MAL-230x 255 400 1000 MAL-400A 440 650 2000 Uc = Maximum continuous operational voltage Up = Voltage protection level STANDARDS & APPROVALS EU conformity: Low Voltage Directive EN 61643-11 RoHS Directive

MODEL: MAL MAL SPECIFICATIONS ES-8162 Rev.2 Page 3/6 https://www.m-system.co.jp/ CONNECTION EXAMPLES SPD1 SPD1 SPD2 ACC1 ACC2 Protected device Circuit breaker G Circuit breaker Building Service entrance switch gear Equipotencial bonding terminal Switchgear Apparent energy meter (WHM) POWER (e.g.) Three phase/3-wire 220V AC SPD1 Class I Surge Protector Class II Surge Protector ACCESSORY MAL-230x SPD2 MALN-230 SPD3 MAKF-240x SPD4 MAKN-220x SPD5 MAT2-2404xx ACC1 CNB2-5 ACC2 CNB-3 *1. The circuit breaker's rating current must be of 150 A, and the rated interrupting capacity selected must be the grater between 30 kA or the highest amount of current that could be available in the circuit. For monitoring the operation of the circuit breaker we recommend also using the alarm switch (AL). *2. The use of RCD with time-delay overcurrent protection is recommended upon to prevent unnecessary operation with surge current (Recommended sensitivity current rating: 30mA) *3. Install an MCCB for backup saving of class II surge protector. Refer to the data sheets of the class II surge protector for details. *4. If the service entrance switchgear and switchgear or protective device wiring distance is more than 10 m, install the class II surge protector on the power supply downstream. Class II surge protector is the combination of SPD3 and SPD4 or SPD5 SPD3 SPD3 SPD4 SPD5 *1, *2 (N) INSTALLATION EXAMPLES: Three phase/3-wire (delta connection) TT Systems Lightning is a natural phenomenon and this unit could receive surges exceeding the discharge withstand current rating. Then, there is a possibility of burning out and result in short-circuits because of exceeding the processing capacity. Upon to save a backup, the circuit breaker must be installed on the power supply side of the surge protector. Molded-case circuit breaker (MCCB) or residual current circuit breaker with overcurrent protection (RCD) can be used. Generator or transformer Class II Surge Protector *4Class II Surge ProtectorClass I Surge Protector Circuit breaker Circuit breaker

MODEL: MAL MAL SPECIFICATIONS ES-8162 Rev.2 Page 4/6 https://www.m-system.co.jp/ POWER SYSTEM POWER (e.g.) SPD1 SPD2 ACC Single-phase/2-wire 220V AC MAL-230x Single-phase/2-wire 110V AC MAL-230x POWER (e.g.) SPD1 MAL-230x SPD2 ACC CNB2-4Single-phase /3-wire 220/110V AC POWER (e.g.) SPD1 MAL-230xSingle-phase /3-wire 220/110V AC SPD2 MALN-230 ACC CNB2-5 Single-phase /2-wire Single-phase /3-wire TN Systems (common earth) TT Systems (independent earth) Protected device G NL1 POWER (e.g.) SPD1 MAL-230x MAL-230x SPD2 MALN-230 MALN-230 ACC CNB2-4 CNB2-4 N Protected device G Protected device L N G SPD1 Protected device ACC L N G SPD1 SPD2 SPD2 ACC SPD1 SPD1 Protected device G NL1 ACC SPD1 SPD1 POWER (e.g.) SPD1 Three-phase/3-wire 220V AC MAL-230x SPD2 ACC CNB2-4 POWER (e.g.) SPD1 Three-phase/3-wire 220V AC MAL-230x SPD2 MALN-230 ACC CNB2-5 Three-phase /3-wire (delta connection) Three-phase /4-wire (star connection) Protected device G (N) (N) SPD2 ACC SPD1 SPD1 Protected device SPD2 G ACC SPD1 SPD1 POWER (e.g.) SPD1 MAL-400A Three-phase/4-wire 220V AC MAL-230x SPD2 ACC CNB2-5 CNB2-5 Three-phase/4-wire 400V AC POWER (e.g.) SPD1 MAL-400A MAL-230x SPD2 MALN-230 MALN-230 ACC CNB2-7 CNB2-7 ACC SPD1 SPD1 SPD1 N Protected device G ACC SPD1 SPD1 SPD1 Generator or transformer Generator or transformer Generator or transformer Generator or transformer Generator or transformer Generator or transformer Generator or transformer Generator or transformer Circuit breaker Circuit breaker Circuit breaker Circuit breaker Circuit breaker Circuit breaker Circuit breaker Circuit breaker Single-phase/2-wire 220V AC Single-phase/2-wire 110V AC Three-phase/4-wire 220V AC Three-phase/4-wire 400V AC ■CONNECTION EXAMPLES BY POWER SYSTEMS

MODEL: MAL MAL SPECIFICATIONS ES-8162 Rev.2 Page 5/6 https://www.m-system.co.jp/ TN Systems (common earth) TT Systems (independent earth) N Protected device G Three-phase /3-wire (V connection) Three-phase /4-wire (V connection) SPD2 POWER (e.g.) SPD1 Three-phase/4-wire 220V AC MAL-230x SPD2 ACC CNB2-5 POWER (e.g.) SPD1 Three-phase/4-wire 220V AC MAL-230x SPD2 MALN-230 ACC CNB2-7 ACC SPD1 SPD1 SPD1 Protected device G ACC SPD1 SPD1 SPD1 N L3 *1. Wiring only for three-phase/4-wire Generator or transformer Generator or transformer POWER SYSTEM Circuit breaker Circuit breaker *1 *1 EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm [inch] 64 [2.52] 45 [1.77] [.35] DIN RAIL 35mm wide DIN RAIL ADAPTOR DIN RAIL ADAPTOR MARKING LABELS MARKING LABELS SPECIFICATIONS (2 [.08]) ALARM OUTPUT TERMINAL (valid only with alarm output type) N-PE TERMINAL LINE TERMINAL DIN RAIL WIRING INLET

  • When mounting, no extra space is needed between units.WIRING BRIDGE (model: CNB2)

MODEL: MAL MAL SPECIFICATIONS ES-8162 Rev.2 Page 6/6 https://www.m-system.co.jp/ SCHEMATIC CIRCUITRY Thermal Breaker L N/PE Discharge Element ALARM OUTPUT* *Terminal block provided for the alarm output option. Schematic shows the operation in normal conditions. Specifications are subject to change without notice.