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The RXM2AB2P7 is a plug-in miniature intermediate relay belonging to Schneider Harmony Zelio series, featuring 2 changeover contacts (2CO/DPDT), 12A rating, 230V AC coil, built-in LED indicator and lockable test button. It matches RXZE series sockets, widely applied in industrial automatic control, PLC interface connection, motor control and building automation. It is certified with CE/UL/CSA/RoHS and compliant with air freight regulations (no built-in lithium battery).
- Model Code Definition
| Section | Code | Meaning |
| Series Code | RXM | Zelio series plug-in miniature intermediate relay |
| Contact Quantity | 2 | 2 sets of changeover contacts (2CO/DPDT), namely 2 normally open + 2 normally closed |
| Functional Feature | AB | Equipped with lockable test button + mechanical indicator window + detachable label |
| LED Status | 2 | With coil LED indicator (1 = without LED) |
| Coil Voltage | P7 | 230V AC 50/60Hz |
Full Model Definition: Schneider Zelio RXM series plug-in miniature intermediate relay with 2 sets of 12A changeover contacts, lockable test button, mechanical indicator window, LED indicator and 230V AC coil voltage.
- Core Technical Parameters
| Parameter Category | Specification | Remarks |
| Basic Characteristics | ||
| Contact Configuration | 2CO (DPDT / 2NO+2NC) | Double-pole double-throw, AgNi silver-nickel contact material |
| Rated Operating Current (Ie) | 12A @ 250V AC (IEC), 10A @ 300V AC (UL/CSA) | Resistive load |
| Rated Insulation Voltage (Ui) | 250V (IEC), 300V (UL/CSA) | Withstand voltage level |
| Rated Impulse Withstand Voltage (Uimp) | 4kV (1.2/50μs) | Surge protection capability |
| Coil Specifications | ||
| Coil Voltage | 230V AC 50/60Hz | Defined by code P7 |
| Coil Power Consumption | Approx. 1020mW | Operating power |
| Pick-up / Drop-out Time | ≤20ms / ≤20ms | Response speed |
| Electrical Endurance | 10⁶ operations (rated load) | Durability index |
| Mechanical Endurance | 10⁷ operations | No-load operation times |
| Physical & Environmental Data | ||
| Dimension (W×H×D) | 22.5×57×44mm | Standard DIN rail size |
| Mounting Type | Plug-in type, compatible with RXZE series sockets | Socket sold separately |
| Protection Class | IP40 | Dustproof protection |
| Operating Temperature | -40°C ~ +55°C | Wide temperature adaptability |
| Storage Temperature | -40°C ~ +70°C | Transportation & storage temperature |
| Vibration / Shock Resistance | 10~55Hz, 0.5mm double amplitude / 100m/s² | Industrial environment adaptability |
- Full Series Model List (RXM AB Series)
| Model | Contact Number | Contact Current | LED | Coil Voltage | Remarks |
| RXM2AB2P7 | 2CO | 12A | Yes | 230V AC | Standard model |
| RXM2AB2B7 | 2CO | 12A | Yes | 24V AC | Common control voltage |
| RXM2AB2E7 | 2CO | 12A | Yes | 48V AC | |
| RXM2AB2F7 | 2CO | 12A | Yes | 120V AC | |
| RXM2AB2BD | 2CO | 12A | Yes | 24V DC | DC version |
| RXM2AB2FD | 2CO | 12A | Yes | 110V DC | |
| RXM2AB2UD | 2CO | 12A | Yes | 220V DC | |
| RXM4AB2P7 | 4CO | 10A | Yes | 230V AC | 4-contact version |
| RXM3AB2P7 | 3CO | 10A | Yes | 230V AC | 3-contact version |
| RXM2AB1P7 | 2CO | 12A | No | 230V AC | Non-LED version |
Selection Mnemonic: Numbers stand for contact groups; AB/LB/CB define functions; 1/2 means with/without LED; P7/B7/E7/BD represent voltages; 12A/10A indicate contact current.
- Cross-brand Comparison & Replacement Models
4.1 Internal Schneider Replacement
| Original Model | Replacement Model | Replacement Description |
| RXN21P7 | RXM2AB2P7 + RXZE1M2C socket | RXN series discontinued, replaced by RXM series |
| RXM2AB2P7 | RXM2AB2P7PVS | Version with surge suppression |
| RXM2AB2P7 | RXM2CB2P7 | Without detachable label (same function) |
4.2 Competitor Equivalent Models
| Brand | Model | Equivalent Specification | Difference |
| Siemens | 3RT2016-1BB42 | 2CO, 12A, 230V AC | Different mounting size, higher price |
| ABB | CR-M024DC2 | 2CO, 12A, 24V DC | DC type, faster response |
| Omron | MY2N-GS | 2CO, 12A, 230V AC | Lower price, shorter service life |
| Weidmüller | DRM570230LT | 2CO, 12A, 230V AC | With test button, DIN rail mount |
- Application Environment & Industry Cases
5.1 Applicable Scenarios
| Industry | Typical Application | Advantages |
| Industrial Automation | PLC output expansion, signal amplification | Lockable test button for easy troubleshooting |
| Motor Control | Star-delta starting, reversible control, soft starter triggering | 12A contact capacity fits contactor coil control |
| Building Automation | HVAC system, lighting control, fire linkage | Wide working temperature (-40°C~55°C), IP40 protection |
| Power System | Secondary circuit of switchgear, protection relay actuation | 4kV impulse withstand, strong anti-surge performance |
| Packaging Machinery | Conveyor control, cylinder solenoid valve drive | Fast response ≤20ms, long mechanical service life 10⁷ times |
5.2 Non-recommended Applications
Direct control of high inductive loads (surge suppressor recommended)
Continuous load current over 12A (choose RXM4 series or contactors)
Severe oil mist and heavy dust environments (limited IP40 protection)
Strong electromagnetic interference environments (shielding measures suggested)
5.3 Typical Application Cases
Case 1: PLC-controlled motor forward/reverse circuit
Configuration: 2 sets of RXM2AB2P7 + RXZE1M2C sockets
Function: Control forward/reverse contactor coils via PLC outputs to realize motor reversible operation
Advantage: Quick fault judgment via lockable test button; mechanical window shows contact status intuitively
Case 2: Zoned building lighting control
Configuration: 8 sets of RXM2AB2P7 + RXZE1M2C sockets
Function: Independent on-off control of 8 lighting zones through building automation system
Advantage: LED indicators facilitate inspection; IP40 protection adapts to electrical shaft environment
- Air Freight Compliance & Certifications
6.1 Air Freight Compliance Judgment
| Compliance Item | Result | Basis |
| Built-in Lithium Battery | None | Electromagnetic relay without battery components |
| Magnetic Substance | Non-dangerous goods | Weak coil magnetic field, compliant with IATA DGR 2.3.2.2 |
| Shipping Category | General cargo | No UN number, shipped as regular electronic products |
| Packaging Requirement | Anti-static bag + carton box | Prevent pin damage and static electricity |
6.2 Certification List (Including Certificate No.)
| Certification | Standard No. | Certificate Information |
| CE | EN 61810-1, EN 61810-3 | Comply with LVD 2006/95/EC & EMC 2014/30/EU directives |
| UL | UL 508, UL 1059 | Certificate No.: E82889 |
| CSA | C22.2 No.14 | Certificate No.: LR64742 |
| RoHS | 2011/65/EU | Meet RoHS 2.0 hazardous substance restrictions |
| REACH | (EC) No 1907/2006 | Free of SVHC high-concern substances |
| EAC | TR CU 004/2011 | Customs Union certification for Russia, Kazakhstan etc. |
- Common Faults & Troubleshooting Guide
7.1 Fault Quick Check Table
| Fault Phenomenon | Possible Causes | Troubleshooting Steps | Solutions |
| Coil no power (LED off) | 1. Power disconnected / wrong voltage | 1. Measure coil terminal voltage | 1. Correct power connection |
| 2. Burnt coil | 2. Test coil resistance (normal: approx. 5kΩ) | 2. Replace relay | |
| 3. Poor socket contact | 3. Re-plug relay | 3. Clean socket contacts | |
| Contacts fail to act | 1. Locked test button | 1. Unlock red test button | 1. Unlock button |
| 2. Mechanical jamming | 2. Press test button manually | 2. Replace relay | |
| 3. Contact welding | 3. Check contact continuity after power off | 3. Replace contacts or relay | |
| Contact sticking | 1. Overload / short circuit | 1. Check load current | 1. Derate usage or add contactor |
| 2. Excessive surge current | 2. Test surge peak value | 2. Install surge suppressor | |
| 3. Contact wear | 3. Inspect contact ablation | 3. Replace relay | |
| LED on but contacts not switching | 1. Too low coil voltage | 1. Ensure voltage ≥85% rated value | 1. Raise control voltage |
| 2. Mechanical failure | 2. Check mechanical indicator window | 2. Replace relay | |
| 3. Contact oxidation | 3. Clean contacts | 3. Clean or replace contacts |
7.2 Maintenance Suggestions
- Regular Inspection: Check LED status, mechanical window and test button function every 6 months
- Contact Life Management: Replace in advance when operation times approach 10⁶ cycles
- Environment Control: Avoid ambient temperature over 55°C or humidity over 95%; clean dust regularly
- Surge Protection: Install RC snubber or varistor for all inductive load circuits
- Ordering Information & Accessory Selection
8.1 Order Codes
Main Product: RXM2AB2P7 (relay body only, socket excluded)
Recommended Socket: RXZE1M2C (screw terminal, fits 2CO relays)
Surge Suppressor Module: RXZS1 (RC snubber for inductive loads)
8.2 Accessory List
| Accessory Name | Model | Function |
| Screw Terminal Socket | RXZE1M2C | Standard mounting for 2CO relays |
| Spring Terminal Socket | RXZE1M2P | Fast wiring, tool-free connection |
| Marker Strip | RXZE1L | Detachable contact function marking |
| Surge Suppressor | RXZS1 | Protect contacts and extend service life |
| Fixing Clip | RXZE1C | Anti-vibration, enhance mounting stability |
- Selection Avoidance Tips
- Voltage Matching: Ensure coil voltage matches control circuit; never mix AC and DC (P7=230V AC, BD=24V DC)
- Contact Capacity: ≤12A for resistive loads, ≤6A for inductive loads (50% derating recommended)
- Socket Matching: Only use RXZE series sockets; do not mix other brands
- Test Button Note: Unlock the lockable button after use to avoid wrong fault judgment
- LED Indication Rule: 2 = with LED, 1 = without LED, select according to on-site demand
Summary: RXM2AB2P7 is a stable and fully-functional miniature intermediate relay suitable for most industrial control occasions. Focus on contact quantity, coil voltage and load type during selection. Equipped with matched sockets and accessories, it greatly improves system reliability and maintenance convenience.
