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Schneider Electric alternating relay in grey electrical box

Schneider Electric

Schneider Electric CA2SKE20T7 Alternating Relay 48050/60 Hz 20 A electrical box

SKU CH-Z9PW-ZKW17

IEC control relay with DIN-rail or surface mounting, six pins, rated 20 A at 48050/60 Hz

  • Product typeIndustrial Electrical Controls & Automation
  • 20 A switching capacity handles heavy industrial loads
  • Alternating relay design balances wear across two circuits
  • 48050/60 Hz rating suits dual-frequency power systems
  • DIN rail and surface mounting offers flexible installation
  • Six-pin configuration simplifies control wiring connections

Schneider Electric CA2SKE20T7 Alternating Relay

This Schneider Electric CA2SKE20T7 is an alternating relay rated for 20 A at 48050/60 Hz. It suits industrial control panels that need automatic load alternation between two circuits. Electricians and maintenance engineers specify it for pump duplexing or compressor staging where balanced runtime matters. The IEC control relay mounts on DIN rail or flat surfaces for panel flexibility.

Installation and common issues

The unit clips onto standard DIN rail or fastens with screws for surface mounting. Six pins accept wire ferrules or solid conductors terminated to the relay terminals. A frequent mistake is reversing the control-circuit polarity on the coil pins, which prevents alternation. Another issue is over-tightening the mounting screws on plastic DIN rail, which can crack the rail and leave the relay loose.

Pre-order checks

Verify that the control voltage available in your panel matches the 48050/60 Hz rating before ordering. Confirm the panel has either DIN rail space or a flat mounting area with the correct screw centres. Ensure the load circuits you intend to alternate do not exceed the 20 A contact rating. Check that your wiring scheme provides the six connections the relay requires for proper operation.

How it compares

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

Price $124.99
Pricier than about 80% of the 1,411 comparable items (median $39.99).

Specifications

Product
Brand nameSCHNEIDER ELECTRIC
Product typeIndustrial Electrical Controls & Automation

Questions about this item

How can I verify the relay is alternating correctly after wiring it to the DIN rail?

Apply 48050/60 Hz power and confirm the 20 A contacts switch states on each cycle using a multimeter on the six pins.

What ships with the CA2SKE20T7 and what must I source separately?

The relay unit with six-pin base for DIN rail or surface mounting is included; mounting screws, wire ferrules and control-circuit wiring are not.

Which coil voltage version should I select for a 60 Hz panel?

Choose the 48050/60 Hz version listed; it is rated for 60 Hz operation at 20 A.

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