Product Datasheet
HD SERIES BATTERY COMBINERS
Intelligent Relay Shares Charge Voltage Between Two Battery Banks
PN 880051
Specifications Overview
Voltage Rating:
Max Continuous Current:
Inrush Current Rating:
Ingress Protection:
Operating Temp:
880051 – 12V DC
880055 – 24V DC
300A (1x 4/0 input/output cable)
1500A (1x 4/0 input/output cable)
IP67/IP69K
-40°C to + 85°C
Description
Combines battery banks when one is being actively charged,
and disconnects them when charge voltage is removed.
Supports high-amp intermittent or continuous current loads.
Very low quiescent current draw (in On or Off states) due to
bi-stable mechanism. Sealed to IP67 & IP69K
Web Resources
Download technical resources at:
littelfuse.com/HD-Combiner
Ordering Information
PART NUMBER
880051
880055
DESCRIPTION
HD Battery Combiner 12V DC
HD Battery Combiner 24V DC
Features and Benefits
• Optional remote On or Off switching override enables
emergency override for starting from an auxiliary
battery, or allows house/cab functions to operate longer
in critical applications.
• Supports high current loads such as large inverter loads.
Operates under high temperature conditions. Compact
unit is an ideal choice for applications in heavy vehicles,
construction, agriculture, military, mining and agriculture.
• Eliminates the cost of routing heavy copper cables to
mechanical-only battery switches. Battery combiner can
be conveniently located between battery banks, and
remote switch can be conveniently located in the cab or
wherever required, using only small gauge wiring.
• Optional start isolation input ensures isolation of auxiliary
loads from engine cranking voltage spikes and sags.
• Optional ‘Engine On’ input eliminates relay cycling caused
by voltage drop along cables.
Datasheet Replaces Hotfeed Number D-652
littelfuse.com
1 of 2
© 2017 Littelfuse Commercial Vehicle Products
Rev: 101817
Product Datasheet
HD SERIES BATTERY COMBINERS
Specifications
880051 & 880055
Max Continuous Current Rating
Inrush Current Rating (10 Seconds)
Control Current
Relay Contact Position
Combine (30 Seconds)
Combine (90 Seconds)
Open (10 Seconds)
Open (30 Seconds)
Open High
Connector
Mounting Hardware
Terminal Hardware
Temperature Range
Humidity
Shock
Vibration
Ingress Rating
Weight
Ignition Protection
Recommended Rocker Switch
Type
Sustained SPDT On-Off-On
13.5V DC at 12V / 27.0V DC at 24V
13.1V DC at 12V / 26.0V DC at 24V
12.3V DC at 12V / 24.7V DC at 24V
2.7V DC at 12V / 25.5V DC at 24V
16.5V DC at 12V / 32.4V DC at 24V
Deutsch 6-position DTM
M5 or #10
3/8” (Accepts M10 Terminals)
-50°C to + 105°C
0-95% RH
10G
8G
IP67/IP69K
1.69lb (0.77kg)
Meets ISO 8846 & SAE J1171
300A (1x 4/0 input/output cable)
1500A (1x 4/0 input/output cable)
40mA (when not changing state)
6A at 12V DC / 3A at 24V DC (when changing state, 50msec)
Configurations
Visit
Littelfuse.com
for the most up-to-date product information. Littelfuse products are designed for specific applications and should not be used for any purpose (including, without limitation, automotive
applications) not expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in
applicable Littelfuse product documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable
Littelfuse product documentation.
Datasheet Replaces Hotfeed Number D-652
littelfuse.com
2 of 2
© 2017 Littelfuse Commercial Vehicle Products
Rev: 101817
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