General-purpose Relay MK-I/-S Exceptionally Reliable General-purpose Relay Features Mechanical Indicator/Push Button Breaks relatively large load currents despite small size. Long life (minimum 100,000 electrical operations) assured by silver contacts. Built-in operation indicator (Mechanical, LED), push button, diode surge suppression, varistor surge suppression. Standard models are UL, CSA, SEV, DEMKO, NEMKO, SEMKO, TV (IEC), and VDE. Conforming to CENELEC standards. Model Number Structure Model Number Legend Standard Models MK - - 1 23 4 56 3. Internal Connection Construction 1. Contact Form 5. Approved Standards Blank: Standard 2: DPDT Blank: UL, CSA, DEMKO, NEMKO 2 or 5: Non-standard connection 3: 3PDT SEMKO, SEV, TV (Refer to Terminal Arrangement/ VD: VDE 2. Cover Internal Connections) 6. Rated Voltage P: Dust cover (Refer to Coil Ratings) 4. Mechanical Indicator Push Button S: Mechanical indicator and push button I: Mechanical indicator Special Accessories MK - - - 1 23 4 56 78 6. Mechanical Indicator Push Button 4. Coil Polarity 1. Contact Form S: Mechanical indicator and Blank: Standard 2: DPDT push button 1: Reverse 3: 3PDT I: Mechanical indicator (Refer to Terminal Arrangement/ 2. Cover Internal Connections) P: Dust cover 7. Approved Standards Blank: UL and CSA only 3. Classification 5. Internal Connection Construction VD: VDE (N and D models only) Blank: Standard N: LED indicator 2 or 5: Non-standard connection D: Diode 8. Rated Voltage V: Varistor (Refer to Terminal Arrangement/ (Refer to Coil Ratings) ND: LED indicator and diode Internal Connections) NV: LED indicator and varistor General-purpose Relay MK-I/-S A-45 Electromechanical RelaysOrdering Information List of Models Type Terminal Contact Internal With mechanical With mechanical Coil ratings Approved form connection indicator indicator and standards (see note 3) pushbutton Standard Plug-in DPDT Standard MK2P-I MK2P-S AC (~), DC (=) UL, CSA, SEV, DEMKO, NEM- Non-standard MK2P2-I MK2P2-S KO, SEMKO, 3PDT Standard MK3P-I MK3P-S TV Non-standard MK3P2-I MK3P2-S MK3P5-I MK3P5-S LED Indicator DPDT Standard MK2PN -I MK2PN -S AC (~), DC (=)UL, CSA (see note 2) Non-standard MK2PN -2-I MK2PN -2-S 3PDT Standard MK3PN -I MK3PN -S Non-standard MK3PN -2-I MK3PN -2-S MK3PN -5-I MK3PN -5-S Diode DPDT Standard MK2PD -I MK2PD -S DC (=)UL, CSA (see note 2) Non-standard MK2PD -2-I MK2PD -2-S 3PDT Standard MK3PD -I MK3PD -S Non-standard MK3PD -2-I MK3PD -2-S MK3PD -5-I MK3PD -5-S Varistor DPDTStandard MK2PV-I MK2PV-S AC (~)UL, CSA Non-standard MK2PV-2-I MK2PV-2-S 3PDTStandard MK3PV-I MK3PV-S Non-standard MK3PV-2-I MK3PV-2-S MK3PV-5-I MK3PV-5-S VDE approved DPDT Standard MK2P-I-VD MK2P-S-VD AC (~), DC (=) UL, CSA, SEV, DEMKO, NEM- Non-standard MK2P2-I-VD MK2P2-S-VD KO, SEMKO, 3PDT Standard MK3P-I-VD MK3P-S-VD TV, Non-standard MK3P2-I-VD MK3P5- MK3P2-S-VD VDE I-VD MK3P5-S-VD LED Indicator DPDT Standard MK2PN-I-VD MK2PN-S-VD AC (~), DC (...) UL, CSA, VDE VDE approved Non-standard MK2PN-2-I-VD MK2PN-2-S-VD 3PDT Standard MK3PN-I-VD MK3PN-S-VD Non-standard MK3PN-2-I-VD MK3PN-2-S-VD MK3PN-5-I-VD MK3PN-5-S-VD Diode DPDT Standard MK2PD-I-VD MK2PD-S-VD DC (...) UL, CSA, VDE VDE approved Non-standard MK2PD-2-I-VD MK2PD-2-S-VD 3PDT Standard MK3PD-I-VD MK3PD-S-VD Non-standard MK3PD-2-I-VD MK3PD-2-S-VD MK3PD-5-I-VD MK3PD-5-S-VD Note: 1. When ordering, add the rated voltage to the model number. Rated voltages are given in the coil ratings table in Specifications. Example: MK3P5-S 230 VAC Rated voltage 2. This DC coil comes in two types: standard coil polarity and reversed coil polarity. Refer to Terminal Arrangement/Internal Connections. Example: MK2PN1-I 24 VDC Reverse polarity 3. Refer to Terminal Arrangement/Internal Connections for non-standard internal connection. 4. The gold plating thickness depends on the request. Example: MK3P-I AP3 24 VAC Gold plating thickness: 3 m Accessories (Order Separately) Item Model Track-mounted 8-pin type PF083A-E Socket 11-pin type PF113A-E Hold-down Clip PFC-A1 A-46 General-purpose Relay MK-I/-S