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SIEMENS 3RH29111HA22 10A 4-pole front-mount auxiliary contact electrical box

SIEMENS

SIEMENS 3RH29111HA22 10A 4-pole front-mount auxiliary contact electrical box

SKU CH-9N94-F6D5R

Front-mount auxiliary contact adds four poles with 10 A AC rating and 690 V maximum voltage

  • Product typeIndustrial Electrical Controls & Automation
  • 10 A AC rating handles control-circuit loads
  • Four contacts — two normally open, two normally closed
  • Front-mount design fits SIRIUS 3RH2 and 3RT2 contactors
  • Screw terminals give secure, tool-friendly wiring
  • IP20 enclosure protects against finger contact

SIEMENS 3RH29111HA22 Auxiliary Contact

The SIEMENS 3RH29111HA22 is a front-mount auxiliary contact block rated for 10 A AC current. It provides four contacts in a 2 normally open and 2 normally closed configuration. The unit uses screw terminals and carries an IP20 rating. It is designed for industrial electrical control and automation systems.

Suits contactor relay expansion.

This contact block suits engineers expanding SIRIUS 3RH2 contactor relays or 3RT2 contactors in frame sizes S00, S0, S2, and S3. It also fits NEMA size 0 and 00 devices. Buyers needing a standalone switching device or a different contact arrangement should look at other products. The block mounts directly on the front of compatible contactors.

690 V AC maximum voltage rating

The maximum voltage rating of 690 V AC determines whether this auxiliary contact matches the circuit requirements. Verify that the application voltage does not exceed this value before installation. The screw terminal connection type and front mounting style are fixed features of this model.

How it compares

Measured against everything we stock in Electrical Enclosures & Cabinets, at today’s prices. Recalculated every night.

Price $25.99
Cheaper than about 64% of the 1,411 comparable items (median $39.99).

Specifications

Product
Brand nameSIEMENS
Product typeIndustrial Electrical Controls & Automation

Questions about this item

How do I choose between the front-mount auxiliary contact versions for my contactor?

Select the 3RH29111HA22 when you need a 10 A, 4-pole block with two normally open and two normally closed contacts that mounts on the front of SIRIUS 3RH2 contactor relays or 3RT2 contactors in frame sizes S00, S0, S2 or S3.

What does the 10 A AC rating mean when the block is installed?

Each of the four contacts can switch up to 10 A at 690 V AC in the control circuit, so the block handles typical coil and pilot-duty loads without derating.

How does the screw-terminal interface limit the installation?

Screw terminals accept solid or stranded conductors tightened to the specified torque, capping the maximum wire size and requiring a screwdriver for each connection.

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