sd series high-amp relay
Commercial Vehicle Product Datasheet
SD SERIES HIGH-AMP RELAY
Bi-Stable Relay with Auxilary Contacts
Specifications Overview
Description
The Littelfuse SD series relay will support your remote power
switching applications that require high continuous current
passage, large engine starting needs and high ambient
temperatures.
Additionally the SD series relay helps reduce your costs and
saves weight by eliminating the need to route heavy copper
cables directly to the mechanical disconnects. Cables can
instead be routed directly to loads with with the SD series
relay positioned close to the battery or in-line with the desired
cable routing allowing you to remotely control the unit with a
fine wire harness.
Voltage
12-24 V
Max Continuous Current Per Pole: 300,600 A
Max Intermittent Current Per Pole
(30 sec) :
1,000-2,000 A
Max Inrush Current (1 sec):
2,000-3,000 A
Ingress (IP) Rating:
IP66/IP69K
Applications
•
•
•
•
Heavy Duty Trucks
Construction
Agricultural Equipment
Heavy Duty Lifting Equipment
Features and Benefits
Web Resources
• Compact footprint saves space in your installation
• Supports US DOT 11579 and EU ADR requirements for
hazmat vehicle compliance
• Bi-stable internal mechanism draw no current in the on or
off state saving your batteries voltage supply
• Controlled with small wires saving weight and costs of
large copper cables
• Dedicated 24-hour output to power your tachograph or
other keep-alive functions
• Local and remote indication of the state of the relay
Download 2D print and technical resources at:
littelfuse.com/sdrelay
Ordering Information
PART
NUMBER
880103
880107
littelfuse.com
1 of 2
DESCRIPTION
12 V, 600 A Continuous, Aux NO & NC
Contacts, Tachograph Output, Isolated
Primary Contacts
12 V, Double Pole, 300 A Per Pole
Continuous, Aux NO & NC Contacts,
Tachograph Output
VOLTAGE AMPERE
(Vdc)
12
600
12, 24
300
© 2016 Littelfuse Commercial Vehicle Products
Rev: 112816
Commercial Vehicle Product Datasheet
SD SERIES RELAY
Specifications
880103
880107
Max Continuous Current
(2x 4/0 Input and 2x 4/0 Output Cables) 600 A
(4/0 Input / Output Cables) 300 A
Max Intermittent Current, 30 Sec. Duration
(2x 4/0 Input and 2x 4/0 Output cables) 2,000 A
(4/0 Input/Output cables) 1,000 A
Auxiliary Contact Max Switch/Continuous Current
Ingress Protection Rating
Mounting Hardware (counter-bore mounting holes)
3A/3A
IP66/IP69K
M6 or ¼”
M6 or ¼”
20 N-m/40 N-m
20 N-m/40 N-m
M10-1.4 Serrated Flange Nut (15 mm hex socket)
M10-1.4 Serrated Flange Nut (15 mm hex socket)
Mounting Bolt Torque, Recommended/Max
High-Amp Terminal Hardware
3A/3A
IP66/IP69K
Required Female Socket Plug Connector For Mating With Integral Housing
Required Female Socket Terminals
Molex 33472-1206
Molex 33472-1206
FCI: 54001627 (16-18 AWG wire)
FCI: 54002002 (20-22 AWG wire)
FCI: 54001627 (16-18 AWG wire)
FCI: 54002002 (20-22 AWG wire)
-40° C to 85° C
-40° C to 85° C
Operating Temp (SAE J1455, Sec 4.1.3.1)
Salt Spray
1,000 Hours
1,000 Hours
Humidity Cycle
0 to 95% RH
0 to 95% RH
8G
8G
Connector
Pin #
Reference
Description
880103
880107
Operational Vibration
1
2
3
4
5
6
7
8
9
10
11
12
AUX_COM
AUX_NC
PNB_LED
VSENSE3
VDC_AUX_OUT
VDC_INPUT
AUX_NO
GND
SW_POWER
CNTRL_IN
SW_LO
LED1
Auxiliary Relay Common Pin
Auxiliary Relay Normally Closed Pin
Logic input line, pulled to ground to activate
Voltage sense #3 for battery combiner functionality
+Vdc fuse protected output
+Vdc for device power
Auxiliary Relay Normally Open Pin
Ground for device power
Power output to control switch and LED indicator
Remote control input
Off Reference signal for control switch
External LED pull-down line (active low)
O
O
X
X
O
R
O
R
O
R
R
O
O
O
X
X
O
R
O
R
O
R
R
O
R = Required Connection
O = Optional Connection
X = No Connection
6 12
1
7
Enlarged Connector View
for Molex 33472-1206 (not included)
Configurations
Visit Littelfuse.com for the most up-to-date product information. Littelfuse reserves the right to make product changes, without notice.
Material in this document is as accurate as known at the time of publication.
littelfuse.com
2 of 2
© 2016 Littelfuse Commercial Vehicle Products
Rev: 112816
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