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Small rectangular surge suppressor with LED indicator, S00 frame

SIEMENS

SIEMENS 3RT29161JK00 surge suppressor 24-70V DC 48-127V AC S00 frame

SKU CH-A29Z-ZYNSB

Protects S00 frame contactors from voltage spikes with an integrated LED varistor across 24–70 V DC and 48–127 V AC

  • Protects S00 contactors from voltage spikes using integrated varistor
  • Visual status confirmation via built-in LED indicator
  • Covers 24-70V DC and 48-127V AC control circuits
  • Designed for direct fit on 3RT2 series S00 frame
  • Siemens-engineered accessory for reliable industrial switching

Purpose and fit

The SIEMENS 3RT29161JK00 surge suppressor protects Series 3RT2 S00 frame contactors from voltage transients. It suits maintenance engineers and panel builders who need to extend contactor life in industrial control circuits.

Build and connections

The unit mounts directly onto the contactor frame and includes an LED indicator plus a varistor element for clamping. Its screw-terminal layout matches the S00 footprint so installation requires no extra wiring or DIN-rail space.

Voltage window

Rated for 24 to 70 V DC and 48 to 127 V AC, the suppressor covers common control-voltage ranges in a single device. Buyers whose systems operate outside these limits must select a different accessory.

How it compares

Measured against everything we stock in Contactors, Relays & Motor Starters, at today’s prices. Recalculated every night.

Price $16.99
Cheaper than about 85% of the 1,098 comparable items (median $61.99).

Specifications

Product
Brand nameSIEMENS

Questions about this item

What voltage range does the 3RT29161JK00 suppress?

The 3RT29161JK00 suppresses surges on 24-70V DC and 48-127V AC control circuits.

Which contactors does this S00 frame suppressor fit?

It mounts directly on SIEMENS 3RT2 series contactors with an S00 frame size.

How do you install the 3RT29161JK00 on the contactor?

Snap the suppressor onto the coil terminals of the S00 contactor; the built-in LED will face outward when seated correctly.

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