MAKF MSYSTEM | Alldatasheet

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MODEL: MAKF MAKF SPECIFICATIONS ES-8143 Rev.3 Page 1/5 http://www.m-system.co.jp/ Lightning Surge Protectors for Electronics Equipment M-RESTER ONE-PORT SURGE PROTECTOR FOR POWER SUPPLY USE Functions & Features

  • Designed to protect electronics equipment from induced lightning surges entering through power supply cables
  • Connected in parallel between the power and ground lines regardless of load current
  • Varistor discharge element has a high speed response without follow current
  • No interruption of power supply even when the head element is removed: easy maintenance and replacing
  • Degraded head element is automatically separated from the power lines to prevent overheating, with a relay contact output to alert the failure status
  • Head-base connection is keyed so that only a head element of correct line voltage can be mounted Typical Applications
  • Low-voltage distribution board
  • Combination with installation for large load current 18 ( .71) (3.82) mm (inch) (2.56) MODEL: MAKF–[1][2]

ORDERING INFORMATION

  • Code number: MAKF-[1][2] Specify a code from below for each of [1] and [2]. (e.g. MAKF-120/AN) [1] OPERATIONAL VOLTAGE 120: 120 V AC 240: 240 V AC 280: 280 V AC 400: 400 V AC 480: 480 V AC [2] OPTIONS Configuration /AN: Without alarm output /BN: Head element for replacement

RELATED PRODUCTS

  • Single mount adaptor (model: MBS)
  • Wiring bridge (model: CNB) GENERAL SPECIFICATIONS Construction: Plug-in 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 (spring up-screw type) (torque: 2.5 N·m) Alarm output: Euro type connector terminal (torque: 0.25 N·m) Applicable wire size Line connection: See the sloderless terminal drawing. Alarm output: 0.14 to 1.5 mm2, stripped length 7 mm Housing material: Flame-resistant resin (black) Alarm output: The SPDT relay trips when the thermal breaker operates and/or the head element is removed. Rated load: 250 V AC @0.5 A (resistive load) 125 V DC @0.2 A (resistive load) Minimum switching load: 5 V DC, 1 mA Line voltage identification key: The connection of the head element and the base is keyed for exact matching. Safety function: Thermal breaker incorporated Failure indicator: The check window color changes from green (normal) to black (failed and the thermal breaker separated the M-rester from the circuit). F d : M5 use B ≤ 13.0 mm F ≥ 7.0 mm T ≤ 1.8 mm
  • Applicable Solderless Terminal Size diameter d BT INSTALLATION Operating temperature: -5 to +55°C (23 to 131°F) Operating humidity: 30 to 90 %RH (non-condensing) Mounting: DIN rail; Surface mounting available with the Single Mount Adaptor model: MBS. Weight: 100 g (3.53 oz)

MODEL: MAKF MAKF SPECIFICATIONS ES-8143 Rev.3 Page 2/5 http://www.m-system.co.jp/ PERFORMANCE Response time: ≤ 20 nsec. Maximum discharge current: 20kA × twice (8/20 μsec.) Nominal discharge current: 5 kA (8/20 μsec.) Insulation resistance: ≥ 100 MΩ with 500 V DC (line to alarm output) Dielectric strength: 2000 V AC @ 1 minute (line to alarm output) Leakage current: ≤ 1 mA at the discharge voltages listed in the table below. MODEL Uc DISCHARGE Up VOLTAGE @1.0kA (8/20 µ s) @5kA (8/20 µ s) (AC) (V) (Vmin) (Vmax) (Vmax) MAKF-120 150 250 600 800 MAKF-240 275 420 1000 1400 MAKF-280 320 460 1100 1500 MAKF-400 440 670 1500 2100 MAKF-480 530 820 1800 2500 Uc = Maximum continuous operational voltage Up = Voltage protection level CONNECTION EXAMPLES ■CONFIGURATION EXAMPLE: Single-phase / 2-wire connection Protected Device Circuit Breaker ‘a’ Cross-wiring Grounding (100 Ω or less) MAKF G *1 *5 *1. *2. *3. *4. *5. The circuit breaker must be installed. Molded-case circuit breakers (MCCB), earth leakage circuit breakers (ELCB) or current-limiting fuses (slow-blow type only) can be used. The rated interrupting capacity of the circuit breaker must be greater than the highest amount of current that could be available in the circuit. The MCCB or ELCB must has elements at both poles. Time-delay type over-current protection is recommended for an ELCB. Recommended sensitivity current rating: 30mA If the rated current of the circuit breaker ‘a’ exceeds 30A, or if the loss of power supply to the protected device should be prevented when the circuit breaker ‘a’ blows due to a surge protector failure, install the circuit breaker ‘b’ (rated current 20-30 A) at the branch circuit. Cable length between the branch point and the grounding: 0.5 meters or less recommended. The protected device’s metal housing must be cross-wired to the ground terminal of the MAKF . If the protected device has no ground terminal, ground only the MAKF . In order to protect an electronic circuit such as switching regulartors, we recommend to use surge protectors which have serial impedance incorporated such as M-System’s models MAX, MMA, MAH. Circuit Breaker ‘b’

MODEL: MAKF MAKF SPECIFICATIONS ES-8143 Rev.3 Page 3/5 http://www.m-system.co.jp/ POWER SYSTEM MODEL NO. 3-phase/3-wire, 200V AC MAKF-240x 3-phase/3-wire, 220V AC MAKF-240x 3-phase/3-wire, 400V AC MAKF-400x 3-phase/3-wire, 440V AC MAKF-480x

  • Three-phase/3-wire (delta connection) MAKF (N) G Power Source Protected Device Circuit Breaker POWER SYSTEM MODEL NO. 3-phase/4-wire, 200/115V AC MAKF-240x 3-phase/4-wire, 220/127V AC MAKF-240x 3-phase/4-wire, 380/220V AC MAKF-400x 3-phase/4-wire, 415/240V AC MAKF-480x
  • Three-phase/4-wire (star connection, TT system) MAKF G N Power Source Protected Device Circuit Breaker POWER SYSTEM MODEL NO. 3-phase/4-wire, 200/115V AC MAKF-120x 3-phase/4-wire, 400/230V AC MAKF-240x 3-phase/4-wire, 480/277V AC MAKF-280x 3-phase/4-wire, 690/400V AC MAKF-400x
  • Three-phase/4-wire (star connection, TN system) MAKF G Circuit Breaker PEN Power Source Protected Device ■ALARM OUTPUT When the alarm output is to be transmitted remotely via outdoor cables, a surge protector for the signal line is re- quired. Choose a circuit breaker with alarm output. Configure a logical addition sequence so that the alarm trips when both or either of the MAKF or the breaker alarm trips. ■CONNECTION EXAMPLES BY POWER SYSTEMS Abnormal voltages appearing in case of a light load or a ground loop must be within the maximum continuous op- erational voltage when selecting the MAKF models. For example, the IEC 60364-5-534 (Electrical installations of building; devices for protection against overvoltages) re- quires margins determined by the equations below: POWER SYSTEM Uc (Max. Continuous Operational Voltage) 3ph/4w, Y connec, TT system Uc ≥ 1.5 × Phase Voltage 3ph/4w, Y connec, TN system Uc ≥ 1.1 × Phase Voltage 3ph/4w, Y connec, IT system Uc ≥ Line Voltage POWER SYSTEM MODEL NO. 1-phase/2-wire, 100V AC MAKF-120x 1-phase/2-wire, 200V AC MAKF-240x 1-phase/2-wire, 250V AC MAKF-240x POWER SYSTEM MODEL NO. 1-phase/2-wire, 100V AC MAKF-240x 1-phase/2-wire, 200V AC MAKF-400x 1-phase/3-wire, 200/100V AC MAKF-240x 1-phase/3-wire, 400/200V AC MAKF-400x MAKF Power Source L N G Protected DeviceCircuit Breaker MAKF Power Source L1 N G Protected DeviceCircuit Breaker
  • Single-phase/2-wire (three-phase delta connection grounded in the middle of phases) or single-phase/3-wire connection
  • Single-phase/2-wire connection

MODEL: MAKF MAKF SPECIFICATIONS ES-8143 Rev.3 Page 4/5 http://www.m-system.co.jp/ EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm (inch) 18 (.71) CHECK WINDOW SPECIFICATION LABEL DIN RAIL ADAPTOR 2–M5 SCREW A A A : Place marking labels here. A TERMINAL BLOCK FOR ALAMR OUTPUT (optional) BASE DIN RAIL 65 (2.56) ■HEAD ELEMENT & BASE, COMBINED ■MARKING LABELS (terminal identifiers, tag name labels) HEAD ELEMENT GRIP GUIDING RAIL SOCKET ALARM OUTPUT LEVER PLUG SOLDERLESS TERMINAL ACCESS PORT 69 (2.72) 90 (3.54) L2 L3 N E G DIN RAIL 35mm wide

  • When mounting, no extra space is needed between units. 51 (2.01) [1 (.04)] 45 (1.77) 14 (.55) NO NC C VOLTAGE ID KEY ■HEAD ELEMENT & BASE, SEPARATED MOUNT POSITION KEY BASE SPECIFICATION LABEL [1 (.04)] [1.5 (.06)]

MODEL: MAKF MAKF SPECIFICATIONS ES-8143 Rev.3 Page 5/5 http://www.m-system.co.jp/ SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM Head Element Base LINE / GND GND / LINE NC C NO ALARM OUTPUT Thermal Breaker Failure Indicator Discharge Element * M5 screw terminal ** Terminal block provided for the alarm output option. Specifications are subject to change without notice.