Whisper Power 50214740 - Modular Battery Protect Relay 48 V / 350 A

Whisper Power 50214740 - Modular Battery Protect Relay 48 V / 350 A

The Whisper Power 50214740 Modular Battery Protect Relay is a highly efficient and reliable device designed for robust battery management in various applications. It functions as a smart high current magnetic latching contactor, capable of handling continuous DC currents of up to 350 Amps. Unlike standard Remote Battery Switches, this relay offers advanced features that ensure comprehensive battery protection without relying on external measurement and control devices.

One of the standout features of the Modular Battery Protect Relay is its ability to draw virtually no current in both the On (Close) and Off (Open) states. This is facilitated by its smart magnetic latch construction. The device is constructed with stainless steel studs, washers, and nuts to provide optimal corrosion resistance, ensuring durability in challenging environments. The robust transparent covers are designed with breakouts, allowing for wire access from any direction, while the smart terminal design enables dual mirrored cable lug connections for easy installation.

Technical Specifications

Rated Voltage: 60 VDC

Nominal Current: 500 A

Cranking Current (1 min.): 1000 A

Nominal Make/Break Current: 500 A (0 - 34 VDC) / 350 A (35 - 60 VDC)

Peak Make/Break Current: 1600 A (0 - 34 VDC) / 1200 A (35 - 60 VDC)

Control Circuit (Electrical)

Coil / Supply Voltage (+ VDC): 34 - 68 VDC

Coil / Supply Current (Idle State): < 100 μA

Coil / Supply Current (State Change): < 1.5 A

Note: Due to the magnetic latch construction, the WP-MBP draws virtually no current in the ON or OFF state. A current draw only exists shortly (maximum 500 ms) when changing the state of the contact.

General Specifications

Dimensions (W x D x H): 50 x 94 x 150 mm

Weight: 800 g

Remote Control: By control wires

Local Control: ON/Standby, Open and Close contact, Override mode

Indicators: Contact open/close, Undervoltage disconnect, Override mode, Error and Setup

Mechanical Life: 100,000 cycles

Electrical Life: 10,000 cycles

Operating Temperature Range: -20 up to 60°C

Connection Stud Size: M10

DC Modular Grid Size: 1 x 3

Protection Class: IP65

Standards: CE certified (EMC Directives UNECE Regulation 10 and 2014/30/EU, Low Voltage Directive 2014/35/EU, RoHS Directive 2011/65/EU, and Ignition Protection Standard ISO 8846)

Additionally, the WP-MBP features local control buttons on the top that allow users to manually override the switch state as commanded through the control wires. A dedicated 'ON/Standby' button is available to place the relay in a standby mode with an open contact, ignoring any commands from the control wires or manual override buttons during this mode.