Hired-hand Emergency Back-Up and Alarms: Dual MOV Surge Prote User Manual download pdf

Dual MOV Surge Protection

For EV Controls

HIRED-HAND, INC. • 1733 County Road 68 • Bremen, AL 35033 USA • Phone 256-287-1000 • Fax 256-287-2000

Manual Part No. 4802-5111 rev 5-07 Page 1 of 4

WARNING!

Only qualified electrician personnel familiar

with the construction and operation of this

equipment and the hazards involved should

install and/or service this equipment. Read

and understand all instructions and diagrams

before proceeding. Failure to observe this

precaution could result in equipment damage,

severe bodily injury, or loss of life.

DESCRIPTION

The harness described in this manual has been

designed for increasing the high voltage surge

resistance of the EV controllers Auxiliary Alarm

Contacts. This assembly provides a quick and simple

wire harness for connecting to existing or new

controllers. The MOV harness includes one green

ground wire terminated to a ring terminal and two

prestripped red wires to connect to existing terminal

blocks.

When the kit is received, check for shipping damage.

Part # Description Qty

1903-4041 HRNS Dual 420VAC MOV SurgeAssy 1

Small flat-head screwdriver 11/32 Open-end Wrench

1.0 MOV Surge Protection

Installation

The MOV harness wires should be formed and placed to

allow access to the other terminal blocks. An example

of the EV-3000/3001 is shown in Figure 1.

(1) Disconnect all AC electrical power from the EV

controller.

(2) Remove the Alarm terminal block from the circuit

board. Example of the EV-3000/3001 controller

Auxiliary Alarm Contacts Connector is shown in

Figure 1 and Section 2.0. An example of the EV

S-3 controller Alarm Out Connector is shown in

Section 2.0.

(3) Install the MOV Harness. Ensure that all wires are

clear from hole drilling locations.

(4) Refer to Section 2.0 for the wire connections

diagrams from the EV1200 or EV3000/3001 to the

MOV Surge Protection Harness or Section 3.0 for

the wire connections diagrams from the EV S-3 to

the MOV Surge Protection Harness.

WARNING!

Ensure that the Electrical Power Sources are OFF

during installation / wiring.

Figure 1: MOV Harness Installed inside EV-

3000/3001 Controller

Earth

Ground

Connection

MOV Harness

Auxiliary Alarm

Contacts

Connector

PCB168

IMPORTANT!

Ensure that the Green Wire is connected to an

Earth Ground connection point and tightened

securely. The Surge Protection will not function

without a reliable Earth Ground.

1 2 3 4

Summary of Contents

Page 1 - Dual MOV Surge Protection

Dual MOV Surge Protection For EV Controls HIRED-HAND, INC. • 1733 County Road 68 • Bremen, AL 35033 USA • Phone 256-287-1000 • Fax 256-287-2000

Page 2 - IMPORTANT!

HIRED-HAND, INC. • 1733 County Road 68 • Bremen, AL 35033 USA • Phone 256-287-1000 • Fax 256-287-2000 Manual Part No. 4802-5111 rev 5-07

Page 3

HIRED-HAND, INC. • 1733 County Road 68 • Bremen, AL 35033 USA • Phone 256-287-1000 • Fax 256-287-2000 Manual Part No. 4802-5111 rev 5-07

Page 4

HIRED-HAND, INC. • 1733 County Road 68 • Bremen, AL 35033 USA • Phone 256-287-1000 • Fax 256-287-2000 Manual Part No. 4802-5111 rev 5-07

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