CTS Series Accessory Definitions

AUTOMATIC TRANSFER SWITCH

Microprocessor activated test switch (Momentary)

Hardwired test switch (Maintained)

6AP

Microprocessor activated test switch (Maintained)

6BK

Hardwired test switch (Maintained Auto – Momentary Test) Key operated

6CK

Hardwired test switch (Maintained Auto – Maintained Test) Key operated

Auxiliary Contact S.P.D.T. – Normal (Source 1) Failure

A1E

Auxiliary Contact S.P.D.T. – Emergency (Source 2) Failure

Auxiliary Contact – closed in emergency (Source 2) Additional available (10 max.) on CTS Series and need to be specified

Auxiliary Contact – closed in normal (Source 1) Additional available (10 max.) on CTS Series and need to be specified

A62

Motor disconnect and staged restart (1 contact)

AB3

Auxiliary contact – closed in bypass emergency (Source 2) (S.P.D.T.) (Standard up to 400A) Additional available (10 max.) on CBTS Series and need to be specified

AB4

Auxiliary contact – closed in bypass emergency (Source 1) (S.P.D.T.) (Standard up to 400A) Additional available (10 max.) on CBTS Series and need to be specified

CALIBRATE

Microprocessor activated calibration feature

CDP

Programmable exerciser daily, 7/14/28/365 days user-selectable, with or without load

CDT

Exerciser no load timer

CTAP

Chicago transfer alarm panel mounted in door of enclosure. Includes 3 aux. contacts and fuse.

Disconnect Switch. Disconnects source voltage to transfer power panel.

DT (DELAYED TRANSITION ONLY)

Time Delay from Neutral Switch position to Source 2 on retransfer

DW (DELAYED TRANSITION ONLY)

Time Delay from Neutral Switch position to Source 2 on retransfer

Engine Start Relay

EL/P

Event log of last 16 events

ETHERNET

Ethernet Communication Adapter. Requires Modbus Communication Module.

Fan contact, closed when engine runs.

CTS SERIES ACCESSORY GROUP MATRIX