DESCRIPTION

Applications / Problems This Solves

Reduces Voltage Drop and Cost of Battery Cables by replacing mechanical battery switches with an electrical relay inline between a battery and the electrical loads.

Supports Simple Battery Charge Management if connected to an engine ignition line. Can also support simple electrical system connect/disconnect when connected to ignition line.

Extends TH Series Automatic Charging Relay Capability to provide either incremental current carrying capacity or to connect and additional independent and isolated battery bank not connected to a charge source.

Accessory Products

AUTO/OFF KILL SWITCH - BUSBAR FOR RT FUSE BLOCKS - BUSBAR FOR CT FUSE BLOCKS

Feature Summary

Simple & Robust Installation: Sealed MX-150 plug/harness with 2 ft control wires included. Reduces install time/costs. Optional output bus bar provides simple and compact connection to RT or CT fuse block product families.

Optional Deutsch DT/AT Connector Output supports an industry standard for marine and commercial vehicle. See P/N: 7422D for details.

Bullet-proof Construction: Sealed unit, high temperature materials allow mounting anywhere on vehicle. Stainless steel self-locking hardware

Integral Diode Suppression reduces voltage spikes on control lines during switching

Single or Dual Split Output Options provide flexibility for different electrical system requirements. See 7421B, 7421D, 7421-24B or 7421-24D for Single Output product versions.

PRIMARY SPECS

PER CIRCUIT
CURRENT (AMPS)
80

PER CIRCUIT INTERMITTENT CURRENT (AMPS)
120

voltage range
(v dc)
8 - 18

PER CIRCUIT ON STATE CURRENT DRAW @ 12V (mA)
175

max cable size
(AWG)
2/0

Terminal stud torque (in-lb/N-m)
80 / 9.1

DOWNLOADS

REFERENCE INFO

Sales Sheet, Specification & Installation Information

3D STEP CAD Model

ARTICLES

Check back here for product related articles

INSTALLATION

ales Sheet, Specification & Installation Information

MARKETING MATERIALS

Sales Sheet, Specification & Installation Information

DIAGNOSTICS

See FAQ section below for further assistance

FOCAL FEATURES

OPTIONAL DEUTSCH DT/AT STYLE CONNECTOR PRODUCT

Provides plug/play harness for marine and commercial vehicle applications. See P/N: 7422D for details

STAINLESS STEEL SELF-LOCKING HARDWARE

100% Non-ferrous corrosion resistant materials. All attachment screws and nuts are self-locking.

INTEGRAL I/O CONNECTOR

Rapid and 100% correct assembly via Molex MX-150 connector eliminates poor field connections.

HARNESS OPTIONS

Harness w/2 feet ground/ignition wires included. Harnesses with longer wires, and Deutsch connectors available

EASY INTEGRATION WITH CT FUSE BLOCKS

Optional EasyLink bus bars provide reduces space and cost to connect TDRs with CT series Fuse Blocks.

EASY INTEGRATION WITH RT FUSE BLOCKS

Optional EasyLink bus bars provide reduces space and cost to connect TDRs with RT series Fuse Blocks.