K276 KG | Alldatasheet
Document overview
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Technical content
K276_EN Rev 2.0 1 K276 HIGH POWER LATCHING RELAY
- 1 20A Latching Relay
- Electrical endurance: 10,000 cycles
- UC3 capability as per IEC 62052-31: Rated Operational Current (Ie) = 100A Rated Operational Voltage (Ue) = 240V
- 4kV dielectric strength between coil and contacts
- Outline dimensions: (59.9 x 41.5 x 24.3)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 @ 240Vac 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 † 0.5mΩ (at 100A) ‡ Across open contacts 2kVac for 1min. Max. switching voltage 2 77 Vac Dielectric creepage 10.0 mm Max. carrying current 1 20 A Ambient temperature - 40°C to +85°C Max. switching current 1 00 A Ambient humidity 5% - 85% RH Rated switching power 24,000 VA Vibration 1.5 mm (DA) 10 Hz to 55 Hz Set time ≤ 30 ms Shock resistance: Reset time ≤ 30 ms Functional § 98 m/s2 Electrical endurance 10,000 cycles Survival ** 980 m/s2 Mechanical endurance †† 100,000 cycles Coil termination PCB Construction Dust Protected Unit weight ±130g * Load at which the relay can pass UC3 as per IEC62052-31 † Data shown are initial values for each respective load contact pair ‡ Typical value for Initial Contact Resistance: Using a sample quantity of at least 20 units, take the average value from 5 continuous measurements from each sample § Unit may change state but is still functional ** Acceleration 980 m/s2 (Duration 6 ms) †† Duty Cycle: 1s ON/ 1s OFF @ 23°C
K276_EN Rev 2.0 2 Coil Data Single Coil (Latching) Dual Coil (Latching) Coil Consumption 5W 10W 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 4.2Vdc 7.6Ω 2 x 3.8Ω 9Vdc 6.3Vdc 16.2Ω 2 x 8.1Ω 12Vdc 8.4Vdc 28.8Ω 2 x 14.4Ω 24Vdc 16.8Vdc 115.2Ω 2 x 57.6Ω 48Vdc 33.6Vdc 460.8Ω 2 x 230.4Ω
Ordering Information
Terminal Type: A: See drawing X: Custom Design ‡‡ Coil Type: S: Single Coil D: Dual Coil Coil Voltage §§: 6 , 9, 12, 24, 48 Vdc Coil 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 CT’s, Hall-effect sensors, flex-wire, copper extension and brass terminals available §§ Coil voltage should be indicated in three-digit format (6Vdc = 006)
K276_EN Rev 2.0 3 Dimensional Drawings (Unit: mm) TYPE A: K276A-DXXXX-2XT TYPE A: K276A-DXXXX-2XT (COIL PINS) Coil Wiring Diagrams Single Coil Dual Coil Positive Polarity Negative Polarity Positive Polarity Negative Polarity
K276_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.