TE Connectivity / KISSLING 300A Series 31 Industrial Power Relays
TE Connectivity's (TE) / KISSLING 300A Series 31 Industrial Power Relays are bistable relays designed to operate in harsh environments. The series features electronic functions for pulse-coil protection, a low-energy switching input for direct connection to an electronic control unit (ECU), and an optional "energy" function for fail-safe shutoff when power is lost. TE KISSLING Series 31 power relays are offered in 300A variants and in three control types: ENERGY, INIT, and SAFETY. These robust relays are designed for battery management and power distribution applications.
Features
- Industrial bistable relays
- IP67/IP6K9K (steam cleaning) sealing
- Contact voltages up to 250VDC with magnetic blowout, magnetic blowout required over 40VDC
- Integrated electronics for coil protection and controls
- Direct connection to ECU
- Fail-safe shutoff for critical situations
- Wide variety of configuration options
Applications
- Power distribution
- Remote battery disconnect
- Battery management
- HVAC control
- Auxiliary power systems
- Battery charge/discharge monitoring
Specifications
- 100ΜΩ minimum insulation resistance
- 50ΜΩ insulation resistance after live or environment
- 1050VAC/1min dielectric withstanding voltage at 50Hz
- 150mV maximum contact drop, initial
- 175mV contact drop after life test
- 300A continuous current
- 2400A - 1s/600A - 20s overload
- Approximately 2mA quiescent current
- 100% duty cycle main contact current rating and continuous current
- 100,000 switching cycles under full load minimum
- 2M mechanical life cycles
- 6G shock and 4G vibration resistant
- -40°C to +85°C operating temperature range
Datasheets
Circuits
Ordering Information
Published: 2020-04-02
| Updated: 2026-09-14