Safety relay unit NSESRN-3A1B-E

Technical Specifications

Standard Level

• Reference Standard: EN/ISO 13849-1

• Safety Level: EN/ISO 13849-1 Category 4

Electrical Parameters

• Power Supply: DC 24V ±10%

• Power Consumption: < 3W

• Response Time: < 20 ms

• Suction Buffer Time: < 50 ms

• Power-on Restart Time: < 1 s

• Protective Circuit: Overvoltage and overcurrent protection; reverse polarity protection

• Safety Input:

  • Double NPN normally closed input (ESRN model)

  • Double PNP normally closed input (ESRP model)

  • Double-channel safety door or emergency stop button (ESRS model)

• Input Synchronization: S1 lags before S2

• Safety Output:

  • 2 NO dry contacts + 1 NC dry contact

  • 3 NO dry contacts + 1 NC dry contact

• Contact Rating:

  • AC15: 5A / 250V

  • DC13: 6A / 24V

• Electrical Lifespan: ≥ 100,000 operations

• Mechanical Lifespan: ≥ 10 million operations

Environment

• Vibration Resistance: 10 Hz–55 Hz, amplitude 0.35 ± 0.05 mm, 20 times in X, Y, Z directions

• Shock Resistance: 10g acceleration, 16 ms pulse duration, 1000 times in X, Y, Z directions

• Operating Temperature: -25°C ~ +60°C

• Storage Temperature: -40°C ~ +85°C

• Protection Rating: Housing IP40 / Terminal IP20

Installation / Structure

• Mounting: 35 mm DIN rail

• Wiring Cross-section: 0.2 – 2.5 mm²

• Dimensions: 117 × 100.6 × 22.5 mm