GE Products BuyLog Smart Catalog

Automatic Transfer Switches Critical Power Products MX250

Section 14

MX250 Accessory Definitions (continued)

Accessories Description S12P

Accessories Description T

Retransfer to Source 1 adjustable time delay Transfer Mode Selector (Closed Transition Only) Pre-signal contact on transfer to Source 1 or Source 2 during test Engine stop /cool adjustable cool down timer Pre and post transfer motor disconnect and restart. Voltage imbalance between phases (3 Phase only) Adjustable time delay on transfer to Source 2 Bypass transfer timers function (soft key switch in microprocessor)

Microprocessor activated auto/manual retransfer selector switch for transferring to Source 1 (includes microprocessor activated YN & YE accessory) Microprocessor activated commit/no commit on transferring to Source 2 (with enable/disable settings)

TMS

T3/W3

S13P

U

S14

UMD

(selector or key) Switch for retransfer to normal-test-auto

VI W

SPD SSS SW1

Surge Protection Device

YEN

Bypass Safety Shutter System

Auto/Off/Start Engine control selector - Door mounted (keyed or non-keyed operation available)

MX250 Accessory Group Matrix

Group Packages

Accessories

MSTD

MEXE

MCON

MSEN

MSPE

MPSG

6/P A1 A1E

A3 A4 Calibrate

CDT CDP Control Switch Maintenance Switch *DT *DW E EL/P J2E J2N K/P

L1/P L2/P L3/P L4/P *LN/P P1

Q2 Q3 Q7 R1-3 R8

R15 R16 R50 S5P

S12/P S13/P T T3/W3 U UMD VI W YEN Standard Accessory included in the group package. Optional Accessory not included but can be added to group package. Optional Accessory. Can not be used with accessory having the same symbol. * Delayed Transition Units Only

Rev. 1/19 Data subject to change without notice

go.abb/industrial

GE Products BuyLog

14-49