Technical Parameter
| Parameter of safety door switch | ||
| Electromagnetic tube | ||
| Rated Voltage | DC24V | |
| Capacity | 4.8W | |
| Rated current | approximate 200mA | |
| Insulation | Clas N (130°C） | |
| LED indicator | ||
| Rated voltage | DC24V | |
| Rated current | approximate 1mA | |
| Luminous color (LED) | Green | |
| Safety level | ||
| Certificate | CE TUV | |
| Standard | EN60947-5-1, GB14048.5, IEC61508, EN ISO 14119 | |
| Protection rate | IP67 | |
| Material | PA66 fire retardant | |
| Mechanical lifespan | >1 million | |
| Electrical lifespan | over 150, 000 times (AC240V3A, resistive load) | |
| Using Type | AC-15 | DC-13 |
| Rated operating voltage(Ue) | 240V | 24V |
| Rated operating current(Ie) | 3A | 2A |
| Electrical parameter | ||
| Contact resistance | <24mΩ | |
| Nominal discharge current (lth) | 10A | |
| Rated insulation voltage (Ui) | 300V | |
| Anti-electric shock level | Class II (double insulation) | |
| Pulse withstand voltage (EN60947-5-1) | 2.5kv | |
| Insulation resistance | >100mΩ | |
| Short-circuit protection | 10A, 250V requires a quick-break fuse | |
| Vibration resistance | 10-55HZ, double amplitude 1.5mm | |
| Compact resistance | Durability 1000/S², mal-operation 300m/S² | |
| Conditional short-circuit current | 100A (EN60947-5-1) | |
| Space of contact | Above 2 x 2mm | |
| Action characteristic | ||
| Direct opening force | Minimum 60N | |
| Direct opening travel | over 10mm | |
| Allowed operating speed | 0.1m-0.5m/s | |
| Allowed operating frequency | Maximum 30 times/minute | |
| Holding force | 1300N | |
| Environment | ||
| Operating environment | 3 (EN60947-5-1) | |
| Operating temperature | -10 to 55°C ( no freezing) | |
| Operating humidity | <95% RH | |
Explanation Model (example:SLM21-BPMF2)
Product Size
Structure And Action
Below picture show status of switch with key inserting and locked (Terminal 2 & 41, 22 & 51/ 32 & 61 is inside connection)
Installation Method
| Releasing the 4 screws on top of the cap, spinning the direction of top cap until the suitable position for key inserting |  |
| When install on side hung door, it should be over than semidiameter |  |
| Please install the safety switch door and insertion key under range 1-3.5mm |  |
| The installation of operation key allows ±1mm error within the key insertion center of the hole |  |
Plastic Head
Magnet voltage /indicator light | Lock/ unlock | Contact type (door monitor + lock monitor) | Connector | Model |
Electromagnet DC24V Green LED | Power to unlock | 1NC/1NO+1NC/1NO | PG13.5 | SLM21-APMF1 |
| M20 | SLM21-APMF2 | |||
| 1NC/1NO+2NC | PG13.5 | SLM21-BPMF1 | ||
| M20 | SLM21-BPMF2 | |||
| 2NC+1NC/1NO | PG13.5 | SLM21-CPMF1 | ||
| M20 | SLM21-CPMF2 | |||
| 2NC+2NC | PG13.5 | SLM21-DPMF1 | ||
| M20 | SLM21-DPMF2 | |||
| 2NC/1NO+1NC/1NO | PG13.5 | SLM21-EPMF1 | ||
| M20 | SLM21-EPMF2 | |||
| 2NC/1NO+2NC | PG13.5 | SLM21-FPMF1 | ||
| M20 | SLM21-FPMF2 | |||
| 2NC/1NO+2NC/1NO | PG13.5 | SLM21-GPMF1 | ||
| M20 | SLM21-GPMF2 | |||
| 3NC+1NC/1NO | PG13.5 | SLM21-HPMF1 | ||
| M20 | SLM21-HPMF2 | |||
| 3NC+2NC | PG13.5 | SLM21-IPMF1 | ||
| M20 | SLM21-IPMF2 | |||
| 3NC+3NC | PG13.5 | SLM21-JPMF1 | ||
| M20 | SLM21-JPMF2 | |||
| 3NC+2NC/1NO | PG13.5 | SLM21-KPMF1 | ||
| M20 | SLM21-KPMF2 | |||
| 2NC/1NO+3NC | PG13.5 | SLM21-LPMF1 | ||
| M20 | SLM21-LPMF2 | |||
| Power to lock | 1NC/1NO+1NC/1NO | PG13.5 | SLM21-APEF1 | |
| M20 | SLM21-APEF2 | |||
| 1NC/1NO+2NC | PG13.5 | SLM21-BPEF1 | ||
| M20 | SLM21-BPEF2 | |||
| 2NC+1NC/1NO | PG13.5 | SLM21-CPEF1 | ||
| M20 | SLM21-CPEF2 | |||
| 2NC+2NC | PG13.5 | SLM21-DPEF1 | ||
| M20 | SLM21-DPEF2 | |||
| 2NC/1NO+1NC/1NO | PG13.5 | SLM21-EPEF1 | ||
| M20 | SLM21-EPEF2 | |||
| 2NC/1NO+2NC | PG13.5 | SLM21-FPEF1 | ||
| M20 | SLM21-FPEF2 | |||
| 2NC/1NO+2NC/1NO | PG13.5 | SLM21-GPEF1 | ||
| M20 | SLM21-GPEF2 | |||
| 3NC+1NC/1NO | PG13.5 | SLM21-HPEF1 | ||
| M20 | SLM21-HPEF2 | |||
| 3NC+2NC | PG13.5 | SLM21-IPEF1 | ||
| M20 | SLM21-IPEF2 | |||
| 3NC+3NC | PG13.5 | SLM21-JPEF1 | ||
| M20 | SLM21-JPEF2 | |||
| 3NC+2NC/1NO | PG13.5 | SLM21-KPEF1 | ||
| M20 | SLM21-KPEF2 | |||
| 2NC/1NO+3NC | PG13.5 | SLM21-LPEF1 | ||
| M20 | SLM21-LPEF2 |
Metal Head
Magnet voltage /indicator light | Lock / unlock | Contact type (door monitor+ lock monitor) | Connector | Model |
Electromagnet DC24V Green LED | Power to unlock | 1NC/1NO+1NC/1NO | PG13.5 | SLM21-AMMF1 |
| M20 | SLM21-AMMF2 | |||
| 1NC/1NO+2NC | PG13.5 | SLM21-BMMF1 | ||
| M20 | SLM21-BMMF2 | |||
| 2NC+1NC/1NO | PG13.5 | SLM21-CMMF1 | ||
| M20 | SLM21-CMMF2 | |||
| 2NC+2NC | PG13.5 | SLM21-DMMF1 | ||
| M20 | SLM21-DMMF2 | |||
| 2NC/1NO+1NC/1NO | PG13.5 | SLM21-EMMF1 | ||
| M20 | SLM21-EMMF2 | |||
| 2NC/1NO+2NC | PG13.5 | SLM21-FMMF1 | ||
| M20 | SLM21-FMMF2 | |||
| 2NC/1NO+2NC/1NO | PG13.5 | SLM21-GMMF1 | ||
| M20 | SLM21-GMMF2 | |||
| 3NC+1NC/1NO | PG13.5 | SLM21-HMMF1 | ||
| M20 | SLM21-HMMF2 | |||
| 3NC+2NC | PG13.5 | SLM21-IMMF1 | ||
| M20 | SLM21-IMMF2 | |||
| 3NC+3NC | PG13.5 | SLM21-JMMF1 | ||
| M20 | SLM21-JMMF2 | |||
| 3NC+2NC/1NO | PG13.5 | SLM21-KMMF1 | ||
| M20 | SLM21-KMMF2 | |||
| 2NC/1NO+3NC | PG13.5 | SLM21-LMMF1 | ||
| M20 | SLM21-LMMF2 | |||
| Power to lock | 1NC/1NO+1NC/1NO | PG13.5 | SLM21-AMEF1 | |
| M20 | SLM21-AMEF2 | |||
| 1NC/1NO+2NC | PG13.5 | SLM21-BMEF1 | ||
| M20 | SLM21-BMEF2 | |||
| 2NC+1NC/1NO | PG13.5 | SLM21-CMEF1 | ||
| M20 | SLM21-CMEF2 | |||
| 2NC+2NC | PG13.5 | SLM21-DMEF1 | ||
| M20 | SLM21-DMEF2 | |||
| 2NC/1NO+1NC/1NO | PG13.5 | SLM21-EMEF1 | ||
| M20 | SLM21-EMEF2 | |||
| 2NC/1NO+2NC | PG13.5 | SLM21-FMEF1 | ||
| M20 | SLM21-FMEF2 | |||
| 2NC/1NO+2NC/1NO | PG13.5 | SLM21-GMEF1 | ||
| M20 | SLM21-GMEF2 | |||
| 3NC+1NC/1NO | PG13.5 | SLM21-HMEF1 | ||
| M20 | SLM21-HMEF2 | |||
| 3NC+2NC | PG13.5 | SLM21-IMEF1 | ||
| M20 | SLM21-IMEF2 | |||
| 3NC+3NC | PG13.5 | SLM21-JMEF1 | ||
| M20 | SLM21-JMEF2 | |||
| 3NC+2NC/1NO | PG13.5 | SLM21-KMEF1 | ||
| M20 | SLM21-KMEF2 | |||
| 2NC/1NO+3NC | PG13.5 | SLM21-LMEF1 | ||
| M20 | SLM21-LMEF2 |
