Page 177 - OT Switch

ABB SWITCH-DISCONNECTORS – HIGH PERFORMANCE, COMPACT SOLUTION
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ABB S W I T C H - D I S C O N N E C T O R S – H I G H P E R F OR M A NC E, C OM P A C T S OL UT I ON 1 177 7

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Accessories for motorized switch-disconnectors

Ordering information for auxiliary contacts

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Auxiliary contacts for OTM40...4000, IP20
Contact numbering according to EN 50013. Types _AU have gold plated contacts for harsh
environments and low operating voltages. Auxiliary contacts are mountable on right side in
types OTM40…4000 or under the mechanism cover in types OTM160…4000. Early break
type auxiliary contacts means that in the switches, the NO aux.contacts break before
the main contacts open.
OA1G10, OA8G01, OA3G01
04
In types with auxiliary contacts mountable under the mechanism cover, the “test” contacts
operate in ON- and OFF-positions as well as when the handle is turned to TEST-position (45°
over the OFF-position). The “test indication” contacts operate only when the handle is
turned to TEST-position. The OA1G10 (N.O.) or OA3G01 (N.C.) auxiliary contact blocks can be
used as standard auxiliary contacts, “test” or “test indication” contacts. The desired func-
tions are achieved when an auxiliary contact block is installed in a specific place.

See next pages for performance data, functions and contact timing.
Weight/
OA2G11
Suitable unit
for switches Function Type Order code kg
Mounting on the right side OTM40…125
13
Maximum 2 auxiliary contact blocks, snap-on mounting
1 no OTM40…125 1NO, early break OA1G10 1SCA022353R4970 0.03
14 OTM40..125 1NC, early make OA8G01 1SCA022744R2240 0.03
OTM40…125 1NO, early break OA1G10AU 1SCA022436R7910 0.03
1NO
OTM40...125F3 1NO+1NC, simultaneous OA2G11 1SCA022379R8100 0.03
function
21 with the main contacts
Mounting on the right side OTM160…4000:
1 nc
Maximum 2+2 auxiliary contact blocks (N.O. or N.C.), snap-on mounting.
22 OTM160…4000 1NO, early break OA1G10 1SCA022353R4970 0.03
1NC OTM160…4000 1NC, early make OA3G01 1SCA022456R7410 0.03
OTM160…4000 1NO, early break OA1G10AU 1SCA022436R7910 0.03
OTM160…4000 1NC, early make OA3G01AU 1SCA022819R5260 0.03
Mounting under the mechanism cover OTM160…4000:
See next page for maximum number of contact blocks, “Aux./test” contacts and “test indication”.
OTM160…4000 1NO, early break OA1G10 1SCA022353R4970 0.03
OTM160…4000 1NC, early make OA3G01 1SCA022456R7410 0.03
OTM160…4000 1NO, early break OA1G10AU 1SCA022436R7910 0.03
OTM160…4000 1NC, early make OA3G01AU 1SCA022819R5260 0.03

Mounting under the mechanism cover, Maximum number Aux./Test Test indication
OTM160…4000: of contact blocks contacts contacts
OTM160...250 2 2 -
OTM315...400 4 - 2
OTM630...800 4 - 2
OTM 1000...4000 6 2 1) 4
1) Early operation test contact