Description
The Schneider OA2G11, OA1G10, OA1G01, OA7G10, OA3G01 are front- or side-mounted auxiliary contact blocks (NO/NC) primarily for TeSys K (CAD/CCD), TeSys D (LC1D), and legacy TeSys B/C contactors & overload relays. They snap onto the designated auxiliary slot of the contactor to add extra control circuit contacts (for pilot lamps, interlocks, PLC inputs, or sealing circuits).
Typical interpretations (Schneider legacy / current coding):
- OA2G11 → 2 contacts: 1 NO + 1 NC (often “G11” = 1 Normally Open + 1 Normally Closed contact block — front mount for TeSys K/D)
- OA1G10 → 1 contact: 1 NO (G10 = 1 Normally Open)
- OA1G01 → 1 contact: 1 NC (G01 = 1 Normally Closed)
- OA7G10 → Often a 7-pin version or special variant — some markets OA7 = early 4-pole / special; confirm against your contactor family
- OA3G01 → 3 contacts? Or more commonly a 1 NC in 3-contact block format for specific TeSys frames — verify by contactor model
These blocks are mechanically linked to the contactor’s moving armature — they change state simultaneously with the main contacts.
Key Features
- Snap-On Mounting: Clips onto front or side auxiliary slot (depending on contactor frame — TeSys K = front; TeSys D = front standard, side optional with adapter)
- Contact Ratings: Typically 10 A @ 240 V AC (AC-15), 6 A @ 24 V DC (DC-13) — check exact data sheet per frame
- Screw / Spring Terminals: Most OA blocks come with screw terminals; spring-cage (EverLink) versions exist on newer TeSys D aux blocks (e.g., LAD… series — OA is older code; LADN… is current for TeSys D)
- Compatibility: Fits TeSys K (CAD..), TeSys D (LC1D.. 9–620 A), TeSys B (older), some TeSys F — always match block family to contactor family
- Country of Origin: France / Morocco / China (Schneider Global)
Model / Contact Configuration Reference
Model (Legacy OA Code) | Contacts (NO/NC) | Typical Mount | For Contactor Family |
|---|---|---|---|
OA2G11 | 1 NO + 1 NC | Front (TeSys K/D) | TeSys K (CAD), TeSys D (LC1D ≤ 38A std.; larger w/ front slot) |
OA1G10 | 1 NO | Front | Same as above |
OA1G01 | 1 NC | Front | Same as above |
OA7G10 | 1 NO (special/early 7-pin var.) | Front | Check — some for TeSys B or early D |
OA3G01 | 1 NC (3-contact format / early var.) | Front | Check — often TeSys K or B lineage |
⚠️ Important Modern Equivalent (TeSys D):For TeSys D (LC1D series) the current catalog uses **LADN… / LAD…
Technical Specifications (Representative — OA2G11, 1 NO + 1 NC, for TeSys D/K)
Parameter | Specification |
|---|---|
Model / Order Code | OA2G11 (Schneider Auxiliary Contact Block — legacy OA family) |
Contacts | 1 × NO (Form A) + 1 × NC (Form B) — mechanically operated |
Rated Thermal Current (Ith) | 10 A (typical for OA blocks on TeSys D/K) |
Utilization Category | AC-15: 10 A @ 240 V AC; DC-13: 6 A @ 24 V DC (check exact rating on nameplate) |
Wiring Terminals | Screw terminals (M3.5) — accepts fork/spade or solid wire |
Mounting | Snap-on front of TeSys K (CAD) or TeSys D (LC1D with front aux slot) |
Electrical Life | 10⁶ operations @ rated AC-15 load |
Mechanical Life | 10⁷ operations (linked to contactor mech. life) |
Operating Temp. | -5 … +60 °C (some -25 … +60 °C) |
Standards | IEC 60947-5-1, EN 60947-5-1, UL 508, CSA C22.2 No. 14, CE, RoHS (later production) |
Warranty & After-Sales
- Factory new units: 12 months warranty
- Refurbished units: 3-6 months warranty (contact & spring-check)
- Technical support for:
- Matching OA block to your contactor model (CAD.. / LC1D.. frame size & year)
- Cross-reference to current LADN.. / LX1.. series if OA discontinued in your region
- Maximum number of aux blocks per contactor frame (TeSys D front/side limits)
- Wiring tip: NO contact closes when contactor coil energized; NC opens — same timing as main contacts
- Alternative: Quote LADN11 (1NO+1NC), LADN10 (1NO), LADN01 (1NC) for TeSys D if preferred
Delivery Time
- Standard delivery: 3-5 working days (stock OA / LAD blocks)
- Express shipping available upon request
Why Choose Our Store
- Genuine Schneider TeSys / legacy OA auxiliary blocks — not generic micro-switches
- Global supply network with competitive pricing
- Expertise in TeSys D / K / B contactor auxiliary selection & retrofitting (OA → LAD cross)
- Comprehensive technical documentation (contact timing, mounting diagram, LAD cross-ref table)
- Responsive customer service and support
Applications
- Control Circuit Interlocks: NC aux contact in STOP circuit (wired in series with Start/Stop PB)
- Pilot Light Indication: NO aux contact to drive “RUN” lamp when contactor picked up
- PLC Input Signaling: Feed aux NO into PLC DI to confirm contactor actual state (not just coil output)
- Seal-in / Hold Circuit: NO aux contact across Start PB for classic latch circuit
- Retrofit / Spare: Replace worn OA blocks on existing TeSys contactors in legacy panels
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