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CJ1W-OC211 — Contact Output Unit
relayPart number: CJ1W-OC211
The Omron CJ1W-OC211 is a CJ-series contact output unit with 16 normally open relay outputs and a removable screw terminal block. Its maximum switching capacity is 2 A at 250 VAC or 24 VDC, subject to an 8 A per-unit limit. The 16 points share one common circuit.
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Technical specifications
| Manufacturer | Omron |
|---|---|
| Part number | CJ1W-OC211 |
| Category | Sensors & automation |
| Item Type Name | Contact Output Unit |
| Product Family / Series | CJ-series Output Units |
| number_of_outputs | 16 points |
| output_type | Normally open relay contacts |
| max_switching_capacity | 2 A at 250 VAC (cos φ = 1 or 0.4); 2 A at 24 VDC; 8 A maximum per unit |
| min_switching_capacity | 1 mA at 5 VDC |
| relay_type | NY-24W-K-IE; not replaceable |
| electrical_service_life | 150,000 operations at 24 VDC resistive load; 100,000 operations at 250 VAC inductive load (cos φ = 0.4); varies with load |
| mechanical_service_life | 20,000,000 operations |
| on_response_time | 15 ms maximum |
| off_response_time | 15 ms maximum |
| number_of_circuits | 16 points per common, 1 circuit |
| connection_type | Removable screw terminal block |
| mounting_type | DIN Rail |
| Reference status | Published catalogue reference; confirm specification and fitment before ordering |
| Availability | On request |
| Internal current consumption | 110 mA maximum at 5 VDC; 96 mA maximum at 24 VDC (6 mA per ON point) |
| Dimensions | 90 mm high × 31 mm wide × 89 mm deep, unpacked |
Catalogue information may contain errors or be out of date. Full specifications and verified details are available on request. Confirm the part number and equipment fitment with us before ordering.
Product questions
How many outputs does the CJ1W-OC211 provide, and are they relay or transistor?
It has 16 normally open relay outputs and no digital inputs. All 16 output points share one common circuit.
What loads can the CJ1W-OC211 switch?
Omron specifies a maximum of 2 A at 250 VAC or 24 VDC, with an 8 A maximum per unit. The AC rating includes the specified power factors of 1 and 0.4. Check the load characteristics and manufacturer limits before selection.
How are the CJ1W-OC211 outputs connected?
The unit has a removable screw terminal block. Its 16 outputs share one common circuit, although there are two COM terminals. The A0–A8 and B0–B8 numbers used in the wiring diagram are not printed on the unit; consult the exact model diagram.
Can a CJ1W-OC211 be swapped directly for a CJ1W-OD211?
Do not assume a direct swap: the OC211 uses relay outputs, while the OD211 uses NPN transistor outputs with different ratings. Check the wiring, load and controller configuration before considering a change.
Can the CJ1W-OC211 internal relays be replaced individually?
The manufacturer datasheet identifies the internal relay as NY-24W-K-IE and states that the relays cannot be replaced. Relay life depends on the connected load.
Researched on:
Research information may be outdated. Confirm fitment and specifications with our team before ordering.