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Automation & PneumaticsAutomationElectrical Switching ComponentsContactors

Siemens 3RH1921-1KA20 Auxiliary switch 2 makers + auxiliary contact Compatible with (relay brand): Siemens 1 pc(s)

A grey electrical junction block with multiple terminals and switches for controlling electrical connections.
'Measurements for left: 153, 163, 154, 164; for right: 173, 183, 174, 184.'
Technical drawing of an electrical switch with dimensions: height 80 mm, width 70.7 mm. Shows front and right-side views.
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Product type
Auxiliary switch
Connection
Screws
Type
3RH1921-1KA20
Type
S0
Contact type
2 makers
Datasheet (PDF)
EAN:
Part number:
Item no:
Unavailable
Sales and shipping:
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Technical specifications

  • Design of the product: First can be mounted on sideProduct function / mirror contact: YesProduct function / mirror contact, note: With 3RT1Application area: For expansion of auxiliary contacts in the control circuitSuitability for use: Auxiliary and power contactorSurge voltage resistance: 6 kVType of connectable wire cross-sections / with AWG lines / for auxiliary contacts: 2x (20 ... 16), 2x (18 ... 14)Type of connectable conductor cross-sections / for auxiliary contacts / single-wire or multi-wired: 2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²Type of connectable conductor cross-sections / for auxiliary contacts / fine-wired / with wire-end processing: 2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²
Product type

Auxiliary switch

Type

3RH1921-1KA20

Type

S0

Contact type

2 makers

Auxiliary contact type

2 makers

Compatible with

Siemens

Compatible with series

Siemens Sirius series

Features

+ auxiliary contact

Mounting type

Snap-in

Connection

Screws

Electrical lifespan

200000

Durability

10000000

IP20

Min. temperature

-25 °C

Max. temperature

+60 °C

Width

10 mm

Height

80 mm

Depth

71 mm

Dim

(W x H x D) 10 x 80 x 71 mm

Content

1 pc(s)

RoHS-compliant

Yes

Other

Top mounting

None

Screw connection

0

2

0

UKCA

yes

Documents & Downloads

Datasheet

Datasheet 2862258 Siemens 3RH1921-1KA20 Auxiliary switch 2 makers + auxiliary contact Compatible with (relay brand): Siemens 1 pc(s)

User & Safety Instructions

User & Safety Instructions 2862258 Siemens 3RH1921-1KA20 Auxiliary switch 2 makers + auxiliary contact Compatible with (relay brand): Siemens 1 pc(s)

Description

Second side auxiliary switch, 2 normally open contacts, screw connection, for 3RT1 auxiliary switch SIRIUS 3RH19 for extending the auxiliary contacts in the control circuit.This auxiliary switch 3RH19 can be mounted without tools on the 3RT1 contactors in sizes S0-S12.The 3RH19/3RH29 auxiliary switches are available as front-side or side-mountable variants, with up to four instantaneous switching or up to two leading-edge closing contacts and NC contacts. The auxiliary switches can be designed as positively-driven contact elements in 3RH auxiliary contactors or as mirror contacts in 3RT power contactors. They are available throughout with screw connection and spring connection.Simple, efficient, always up-to-date - the SIRIUS modular system.

This text is machine translated.