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Dark gray auxiliary switch block with a blue-gray front panel. Features four normally closed (NC) and four normally open (NO) contacts, identified by eight numbered terminals arranged in two rows. White knob on the right. For expanded functionality.

Auxiliary Contact, Front, 2S/2O, for 3RH2 and 3RT2 S00-S3

3RH2911-1HA22

Item Number: 3RH2911-1HA22

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Dark gray, elongated relay socket or terminal strip, vertical. On the left, three round, recessed connection openings with pairs of numbers such as 21, 33, 54 and 22, 41, 14. At the top, a small flip-lock mechanism.

Auxiliary Contact, Side-Mounted, 1S/1O, for 3RH2 and 3RT2 S00

3RH2911-1DA11

Item Number: 3RH2911-1DA11

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Siemens auxiliary contact for front mounting, dark gray with a blue-gray front plate. Terminals for 1 normally closed (1 NC) and 3 normally open (3 NO) contacts are clearly labeled. Small white pushbutton is visible. Extends contactors.

Auxiliary Contact, Front-Mounted, 3 NO/1 NC for 3RH2 and 3RT2 S00–S3

3RH2911-1HA31

Item Number: 3RH2911-1HA31

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Gray-blue Siemens Sirius auxiliary relay, size S00, black top, multiple screw terminals on the front. 24V DC, model 3RH21, for control systems, with four normally open contacts (4S) as indicated by the contact designations.

Auxiliary contactor, 2S/2Ö, 24 V DC, integrated diode, size S00

Auxiliary contactor, 2 S + 2 Ö, 24 V DC, with integrated diode, size S00, screw terminals 3RH2122-1FB40

Item Number: 3RH2122-1FB40

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Gray-blue Siemens Sirius auxiliary relay, size S00, black top, multiple screw terminals on the front. 24V DC, model 3RH21, for control systems, with four normally open contacts (4S) as indicated by the contact designations.

Auxiliary contactor 2S/2Ö, 110V, 50/60Hz, size S00

Auxiliary contactor, 2 NO + 2 NC, 110 V AC, 50 / 60 Hz, size S00, screw terminals 3RH2122-1AF00

Item Number: 3RH2122-1AF00

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Grey/black Siemens SIRIUS auxiliary contactor, block-shaped electronic component. Front and right sides visible, round screw terminals. Labeled “Siemens SIRIUS, Model 3RH21.” Compact 4-pole module.

Auxiliary contactor, 4-pole, 2S/1Ö, 80 V DC

Auxiliary contactor, 2 S + 2 Ö, 80 V DC, screw terminals, size S00 3RH2122-1BE80

Item Number: 3RH2122-1BE80

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Black, rectangular protection module with a smooth surface. "3RT2936-1ER00" and "DC 24V" are printed vertically on one long side. There are two connectors/mounting points at the bottom and a recess at the top.

Diode Protection Module 24 VDC for S2/S3

3RT2936-1ER00

Item Number: 3RT2936-1ER00

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Dark blue and dark gray auxiliary switch block with four NO contacts, labeled '73NO', '74NO', '83NO', '84NO'. Small white rectangular pushbutton on the front. Compact module for circuit expansion, signal relay, and status indication.

Auxiliary contact, front, 2S to 3RH2 and 3RT2 S00-S3

Top connection for 3RH2911-1LA20

Item Number: 3RH2911-1LA20

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Rectangular, dark protection module with rounded edges and vertical labeling. Visible: Product No. 3RT2936-1CD00, operating voltage AC 127–240 V and DC 150–250 V. Designed for installation.

Varistor Protection Module 127...240 VAC for S2

3RT2936-1CD00

Item Number: 3RT2936-1CD00

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Blue-gray/dark gray auxiliary contact front module with 4 round terminals: .7 NO, .5 NC, .8 NO, .6 NC. Features a side mounting slot and a small rectangular white actuator button on the front (early-closing/late-opening).

Auxiliary contact, front, 1S/1O (early-closing / late-opening)

For 3RH2 and 3RT2 S00-S3 3RH2911-1FB11

Item Number: 3RH2911-1FB11

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A rectangular, black and gray auxiliary switch block. Three rows of terminal blocks are visible at the top and bottom, each labeled ".3 NO" and ".4 NO," indicating "normally open" contacts. A white button is located on the side.

Auxiliary Contact, Front, 3S to 3RH2 and 3RT2, S00-S3

3RH2911-1HA30

Item Number: 3RH2911-1HA30

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Black, rectangular protection module, vertical. Front panel with white printing: 3RT2936-1BB00, AC 24...48V and DC 24...70V. Varistor protection module for electronic circuits.

Varistor Protection Module AC 24–48 V for S2, S3

3RT2936-1BB00

Item Number: 3RT2936-1BB00

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Dark gray, front-mountable auxiliary contact block with a blue front plate. 8 round terminal openings labeled: .1 NC, .3 NO, .2 NC, .4 NO. Small white switch on the front. Complements contacts for 3RH2/3RT2 contactors.

Auxiliary Contact, Front, 1 S/3 NO, for 3RH2 and 3RT2 S00–S3

3RH2911-1HA13

Item Number: 3RH2911-1HA13

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A dark gray, elongated electronic module with a blue-gray front panel, shown at an angle from the top right. On the right, the brand name “SIEMENS” is embossed or printed in capital letters. Two mounting tabs are located on the side for installation.

Protection Module RC Circuit 127...240 VAC / 150...250 VDC for S00

3RT2916-1CD00

Item Number: 3RT2916-1CD00

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Compact, rectangular auxiliary switch block in dark gray with a light gray front. Eight circular terminal sockets: “53NO,” “61NC,” “71NC,” and “81NC” on top; “54NO,” “62NC,” “72NC,” and “82NC” on the bottom. White actuator in the center.

Auxiliary contact 1S/3O 53E for auxiliary contactor 3RH2.., S00

Can only be combined with 3RH2140 and 3RH2440 models 3RH2911-1GA13

Item Number: 3RH2911-1GA13

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Dark, rectangular protection module with a textured top surface and two light-colored, square markings on the front. A narrow protrusion at the bottom for mounting/connection. Compact varistor module for voltage protection in industrial applications.

Protection Module, Varistor 127...240 VAC / 150...250 VDC to S0

3RT2926-1BD00

Item Number: 3RT2926-1BD00

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A vertical, dark gray, rectangular electronic component with a smooth surface. Two small light gray square markings on the front, one top and one bottom. A dark connector/pin protrudes from the bottom. Irregular indentations on top.

Protection Module RC Circuit 127...240 VAC / 150...250 VDC to S0

3RT2926-1CD00

Item Number: 3RT2926-1CD00

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Gray-blue Siemens Sirius auxiliary relay, size S00, black top, multiple screw terminals on the front. 24V DC, model 3RH21, for control systems, with four normally open contacts (4S) as indicated by the contact designations.

Auxiliary Contactor 4S 24V DC Size S00,

Auxiliary contactor, 4 S, 24 V DC, size S00, screw terminals 3RH2140-1BB40

Item Number: 3RH2140-1BB40

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A dark gray, elongated electronic module with a blue-gray front panel, shown at an angle from the top right. On the right, the brand name “SIEMENS” is embossed or printed in capital letters. Two mounting tabs are located on the side for installation.

Protection Module RC Circuit 24...48 VAC / 24...70 VDC for S00

3RT2916-1CB00

Item Number: 3RT2916-1CB00

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A vertical, dark gray rectangular electronic component with a smooth surface. Two small light gray square markings on the front, one at top and one at bottom. A dark connector/pin protrudes from the bottom. Top has irregular indentations.

Protection Module, Varistor 24–48 VAC / 24–70 VDC for S0

3RT2926-1CB00

Item Number: 3RT2926-1CB00

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Front-mount auxiliary contact in dark and blue-gray. Eight terminal openings (4 on top, 4 on bottom), labeled ".3 NO, .1 NC, .5 NC, .7 NO" and ".4 NO, .2 NC, .6 NO, .8 NO." On the right is a white slide switch for contactor expansion.

Auxiliary Contact, Front, 2S/2O, for 3RH2 and 3RT2 S00-S3

3RH2911-1FB22

Item Number: 3RH2911-1FB22

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> 10 available
Gray-blue Siemens Sirius auxiliary relay, size S00, black top, multiple screw terminals on the front. 24V DC, model 3RH21, for control systems, with four normally open contacts (4S) as indicated by the contact designations.

Auxiliary contactor 3S/1Ö 24 V AC, size S00

Auxiliary contactor, 3 NO + 1 NC, 24 VAC, 50/60 Hz, size S00, screw terminals 3RH2131-1AB00

Item Number: 3RH2131-1AB00

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Gray-blue Siemens Sirius auxiliary relay, size S00, black top, multiple screw terminals on the front. 24V DC, model 3RH21, for control systems, with four normally open contacts (4S) as indicated by the contact designations.

Auxiliary contactor 2S/2Ö 230 V AC 50/60 Hz size S00

Auxiliary contactor, 2 NO + 2 NC, 230 V AC, 50/60 Hz, size S00, screw terminals 3RH2122-1AP00

Item Number: 3RH2122-1AP00

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Grey and blue modular auxiliary contact front component for electrical circuits. Six round terminal openings—three at the top and three at the bottom—labeled '.1 NC' and '.2 NC'. Small white switch/lever on the front.

Auxiliary Contact, Front, 3-pole open, for 3RH2 and 3RT2 S00-S3

3RH2911-1HA03

Item Number: 3RH2911-1HA03

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