K237 KG | Alldatasheet

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Technical content

K237_EN Rev 2.0 1 K237 HIGH POWER LATCHING RELAY

  • 100A Latching Relay
  • UC3 capability as per IEC 62052-31: Rated Operational Current (Ie) = 100A Rated Operational Voltage (Ue) = 230Vac
  • 4kV dielectric strength between coil and contacts
  • Outline dimensions: (60 x 52 x 23)mm
  • Custom assemblies available with flex wire and/or copper extensions, and/or with integrated shunt
  • RoHS compliant materials and process Contact Data Characteristics Rated Load * 100A @ 230Vac Insulation resistance 1,000MΩ (at 500 Vdc) Contact form 2A or 2B Dielectric strength: Contact material AgSnO2 Coil to contact 4kVac for 1 min. Contact resistance † 0.6mΩ (at 80 A) 10kV 1.2µs/50µs Max. switching voltage ‡ 230 Vac Pole to Pole 8kV 1.2µs/50µs Max. carrying current § 100 A Across open contacts 2.5kVac for 1min. Max. switching current 100 A Dielectric creepage 9.6 mm Rated switching power 23,000 VA Ambient temperature -40°C to +85°C Set time ≤ 20 ms Ambient humidity 5% - 85% RH Reset time ≤ 20 ms Vibration 1.5 mm (DA) 10 Hz to 55 Hz Electrical endurance 10,000 cycles Shock resistance: Mechanical endurance 100,000 cycles Functional ** 294 m/s2 Survival 980 m/s2 Coil termination PCB or Wire Unit weight ±160g * Load at which the relay can pass UC3 as per IEC 62052-31 † Typical value for initial contact resistance per relay pole: Using a sample quantity of at least 20 units, take the average value from 5 continuous measurements from each sample ‡ Voltage at which the relay can pass electrical endurance testing as per IEC 62052-31 § Current at which the relay can pass UC3 as per IEC 62052-31 ** Unit may change state but is still functional

K237_EN Rev 2.0 2 Coil Data Single Coil (Latching) Dual Coil (Latching) Coil Consumption 4W 8W Pulse Duration 50ms 50ms Coil Resistance (Ω±10%) at 23°C Nominal Coil Voltage Min Set/Reset Voltage Single Coil (Latching) Dual Coil (Latching) 6Vdc 4.8Vdc 9Ω 2 x 4.5Ω 9Vdc 7.2Vdc 20.25Ω 2 x 10.1Ω 12Vdc 9.6Vdc 36Ω 2 x 18Ω 24Vdc 19.2Vdc 144Ω 2 x 72Ω 48Vdc 38.4Vdc 576Ω 2 x 288Ω 230Vac See endnote †† 3024Ω 2 x 1512Ω †† Set / Reset Voltage: 161Vac Maximum Pulse Duration: 50ms for full-wave rectification; 100ms for half-wave rectification

Ordering Information

Terminal Type: A: See drawing X: Custom Design ‡‡ Shunt: 280: 280µΩ NIL: No Shunt Coil Type: S: Single Coil D: Dual Coil Coil Pin Position: L: Coil pins on left of relay R: Coil pins on right of relay Coil Voltage §§: 6, 9, 12, 24, 48 Vdc; 230 Vac Polarity: P: Positive N: Negative Contact Form: 2A: Form 2A – Normally open (NO) 2B: Form 2B – Normally closed (NC) Contact Material: T: AgSnO2 Custom Number: Cxxxx: Where xxxx represents a unique number for custom relay terminal designs ‡‡ For custom designs, please contact KG Technologies. Integrated shunts, flex-wire, copper extension and brass terminals available §§ Coil voltage should be indicated in three-digit format (6Vdc = 006). For AC variant (230Vac=230)

K237_EN Rev 2.0 3 Dimensional Drawings (Unit: mm) TYPE A CONTACT TERMINALS Wiring Diagrams Single Coil Dual Coil Positive Polarity Negative Polarity Positive Polarity Negative Polarity

K237_EN Rev 2.0 4 Application Notes 1. It is possible that during transit or final assembly the relay could change state. Therefore, it is recommended that all relays be set to the desired state via a power supply. 2. In order to maintain an “Open” or “Closed” state of the relay, the coil voltage should reach the rated voltage. The pulse width should be 50ms minimum to ensure a proper change of state. DO NOT energize both T1 and T3 at the same time on a Dual Coil or energize the coil for longer than 1 minute (damage to the coil could occur). 3. Applying excessive heat to the relay terminals (soldering or welding) can cause damage to the internal structure of the relay and should be avoided. 4. Moving or bending the terminals can cause damage to the internal structure of the relay and should be avoided. 5. For definitions of terms used in this data sheet, see glossary at www.kgtechnologies.net. Disclaimer: This datasheet is for reference only. All specifications are subject to change without prior notice. KG Technologies, Inc. cannot predict every possible application for our relays. While we do our best to make our relays as versatile as possible, we highly recommend contacting our engineering team if you have any questions. KG Technologies, Inc. is not responsible for malfunctioning relays when operated outside the specified parameters given in this datasheet.