200AMP VOLTAGE SENSITIVE RELAY

$140.00

Out of stock

Product Description

12V 200A VOLTAGE SENSITIVE RELAY – DAUL BATTERY ISOLATOR

Featuring a huge 200 amp continuous current rating the Projecta Voltage Sensitive Relay (VSR) with override capability offers ease of installation and intelligent voltage sensing electronics for total automatic operation.
this VSR will engage when the engine is running and the start battery reaches 13.4V. This will connect the start and auxiliary batteries enabling your alternator to charge them simultaneously. The disconnect voltage is 12.8V with a delay of 8 seconds. When disconnected you starting battery is isolated from your auxiliary battery and is protected from being discharged.

Fully sealed to IP66 and surge protected, the VSR units are ideal for dual battery setups as they enable the batteries to be paralleled for high power usage, eg. jumpstarting in an emergency.

For a real-world example of dual battery system using a voltage sensitive relay click the link below.
Practical Dual Battery System using a VSR 

FEATURES

L.E.D indicator
L.E.D illuminates when VSR is activated

Sealed electronics
Sealed against dust and water ingress (IP66)

Surge protection
Guards vehicle against voltage spikes

Manual override
Manual operation allowing the VSR to engage below set voltages, can be wired with a remote switch

Silver tip contacts
Provide exceptional current transfer

INSTRUCTION MANUAL
Download PDF

 

 

SPECIFICATIONS

PART NO

VSR200

VOLTAGE

12V

CHARGING CURRENT

200A Continuous, 400A Peak

CUT-IN VOLTAGE

13.4V

CUT-OUT VOLTAGE

12.8V

CUT-OUT DELAY

8 seconds

MINIMUM OPERATING VOLTAGE

10V

CHARGE TYPE

Parallel

CONTROL

MCU

MOUNTING

Surface/firewall

CURRENT DRAW

Charging 680mA (standby 10mA)

SURGE PROTECTION

Built-in

INGRESS PROTECTION

IP66

OVERRIDE

Requires min. 10V

RECOMMENDED FUSE

250A

MINIMUM CABLE SIZE

32mm2 (2 B&S)

APPROVALS

EMC

 

Fusing your dual battery system

The basic principle of cable and fuse selection is,  “you choose the cable size to supply the component the required current with minimal voltage drop and you choose the fuse to protect the cable”  Let just add,  “You fuse to protect your vehicle from the immense heat generated when a cable shorts”
When running cable between two batteries, there are two power supplies in the event of a short.  It is necessary to use two fuses with one at each battery.

Wiring diagram for a VSR Voltage sensitive relay with two fuses