Brand: ESPE
Model: ESRE-4A2B Series
Product Feature:
1. Design according to ISO13849-1 (Category 4, Ple);
2. Relay output: 4NO and 2 NC auxiliary contacts;
3. Inside circuit with cross-diagnose monitoring function;
4. Input power overvoltage protection;
5. Standard 35mm width guide mounting design.
Product Details
Parameter of safety relay expansion module
| Standard level | |
| Reference standard | ISO 13849-1 |
| Safety level | ISO 13849-1 Category 4/Ple |
| Electric parameter | |
| Power supply | DC24V±10% |
| Capacity | <3W |
| Response time | <20ms |
| Suction buffer time | <50ms |
| Restart time | <1s |
| Protective circuit | Overvoltage protection, reverse polarity protection |
| Safety input | Safety switch signal |
| Input synchronization | No requirement |
| Safety output | 4NO contacts, and 2 NC auxiliary contacts |
| B10 data | Rated load: 400,000 times, low load: 2,000,000 times |
| Contact capacity | AC15:5A/250V;DC13:6A/24V |
| Electric lifetime | ≥100,000 times (1NO:5A 250VAC,Resistive load) |
| Mechanical lifetime | ≥10,000,000 times |
| Environment | |
| Vibration resistance | Frequency 10Hz-55Hz, amplitude 0.35±0.05mm, 20 times each in X,Y and Z direction |
| Impact resistance | Acceleration 10g, pulse duration 16ms, 1000 times each in X, Yand Z direction |
| Working temperature | -10℃~+55℃ |
| Storage temperature | -40℃~+85℃ |
| Protection level | Enclosure: IP40 Terminal: Ip20 |
| Installation/ Structure | |
| Installation | 35mm DIN navigation |
| Wire size | 0.2~2.5mm² |
| Size | 117 x 100.6 x 22.5 |
Product Size
Wiring diagram
Model selection (e.g：ESR□ -4A2B-E)
Panel function
Application Details
Safetyrelay expansion module ESR-4A2B-E supply4 safetycontacts output and 2 auxiliary output in safety circuit. Connect A1 of ESR-4A2B-E to output terminal of the previous device,A2 connected the pole of power supply, when previous device send rightsignal, the related contacts ofexpansion module has corresponding action.|
Functional diagram
Automatic reset
●ESRE-4A2B: Connect A1,A2 of ESRE-4A2B as diagram, when previous device output active signal, the component works.
●Input circuit output active signal to ESRE-4A2B, K1 & K2 of relay get energized and held, indicator CH1, CH2 light up, safety contacts 13-14/23-24/33-34/43-44 close, and auxiliary Y1-Y2/ 51-52 contacts open.
Safety feedback loop
● Connect YS, Y2 in series to feedback loop of previous device, when a related fault occurs, the safety relay expansion module will not perform the corresponding action.
● The input circuit is disconnected (The input circuit has no valid signal output to the safety relay expansion module), relay K1, K2 are disconnected, indicator light CH1, CH2 are off, safety contacts 13-14/23-24/33-34/43-44 are disconnected, andauxiliary contacts Y1-Y2/51-52 are closed.
Product Installation
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| Installation diagram | Removal diagram |
Carefully read the manual before installation, and ensure power supply is cut off when wiring.Wiring with power is prohibited.
