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Connecting remote potentiometer – Rockwell Automation 700-RTC_RTCR Type RTC RTCR Solid-State Relays User Manual

Page 5

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Publication 700-IN003C-EN-P - October 2009

Bulletin 700 Type RTC & RTCR Solid-State Relays 5

Figure 3 Timer Power and Initiate Circuit Connections

Connecting Remote
Potentiometer

Type RTCR Timing Relays are designed for use with an external potentiometer
(400K ohms maximum resistance). Recommended potentiometers and
required connecting cables are listed below.

➊ 1 operator only - suitable for 400K ohm potentiometer.

Connection Cable – Use shielded twisted pair cable, maximum of 50 feet.
Recommended cable (or equivalent): UL Style 2517, having two #18 stranded
conductors with aluminum mylar foil shield and #20 drain wire rated 105_C
(221_F), FR–1, 300V.

In the connection drawing (See Figure 4 on page 6), note that the shield is
connected to the terminal marked “Shield” at one end and is insulated and not
connected at the other end. The L2 terminal should be grounded at the power
source.

External Initiating Contact
(N.O. or N.C.)

Timed Contacts - Any
Combination of N.O. and N.C.

Instantaneous Contacts - Any
Combination of N.O. and N.C.

24V (+10%, -15%) AC or DC
120V (+10%, -15%) AC or DC
240V (+10%, -15%) AC or DC

Timed

Inst.

C1

C3

C2

C4

C5

C7

C6

C8

P

L1

L2

Potentiometer Construction

Catalog Number

Bulletin 800T NEMA Type 13 Oiltight

800T-U90

Bulletin 800MR Small NEMA Type 13 Oiltight - Round

800MR-N37

Bulletin 800MS Small NEMA Type 13 Oiltight - Square

800MS-N37