Safety relay module
Safety relay module SRM 21 RT2
Article no.: 1179203Old article no.: 90560049
Standard version
contact us
Product features
Enclosure width: 22.5 mm
2 NC or 1 NC/1 NO contact can be connected
Feedback circuit
2 enabling paths
1 transistor output
Manual or automatic reset
LED indicator for switching condition
Crossed wire monitoring
Technical data
General technical data
- Applied standards
- EN ISO 13849-1, EN 62061, EN 60204-1, BG-GS-ET-20, EN 60947-5-1, EN 60947-5-3, EN 61326-3-1
- Enclosure
- polycarbonate, black
- Tightening torque
- screw connection terminals: approx. 0.8 Nm
- Degree of protection
- enclosure IP40, terminal block IP20 to IEC/EN 60529, protection against contact to VBG 4
- Contact material
- Silver, gold flashed
- Mounting
- DIN rail mounting
- Connection
- screw connection terminals with + and - screws
- Cable cross-section
- min. 1x 0.5 mm² (AWG 20) including conductor ferrules, max. 1x 2.5 mm² (AWG 14) including conductor ferrules, 2x 1.5 mm² (AWG 16) including conductor ferrules
- Rated operating voltage Ue
- 24 VDC ±15 %
- Rated operating current Ie
- 0.125 A
- Rated insulation voltage Ui
- 250 VAC
- Rated impulse withstand voltage Uimp
- 4 kV
- Conditional short-circuit current
- 100 A
- Inputs
- 1 NC/1 NO contact or 2 NC contacts, 1 feedback circuit, 1 start input (monitored)
- Outputs
- 2 enabling paths, 1 transistor output as signalling output
- Rated operating current/voltage Ie/Ue
- to EN 60947-5-1: 2 A/230 VAC; 1 A/24 VDC
to CSA: B300/R300, 250 VAC
- Conventional thermal current Ithe
- 5 A
- Utilisation category
- AC-15; DC-13
- Contact load capacity
- min. 10 mA
- Typ. input voltage
- 20 VDC
- Typ. input current
- 22 mA
- Max. load of signalling output
- 20 mA
- Short-circuit protection
- power supply 2A slow blow, enabling paths 6 A gG/gN fuse
- Pick-up delay
- ≤ 20 ms
- Drop-out delay
- ≤ 20 ms
- Risk time
- ≤ 0.5 s (switch-on delay)
- Attendance delay tv
- < 200 ms
- Mechanical life
- > 50 million operations
- Display
- 1 LED for supply voltage, 1 LED each for input A and B, 1 LED for authorisation
- Degree of pollution
- 2
- Overvoltage category
- III
- Ambient temperature
- –22 °C … +55 °C
- Storage and shipping temperature
- –22 °C … +70 °C
- Relative humidity
- 10 % … 90 %
- Shock resistance
- 15 g
- Approvals
- ßd
- Note
- Inductive loads (contactors, relays etc.) are to be suppressed by suitable circuitry.
- Weight
- 220 g
Safety-relevant data
- EN ISO 13849-1
- Performance Level PL e
- Category
- 4
- TM
- max. 20 years
- MTTFd
- > 113 years
- DC/DCavg
- > 99 %
- EN 62061
- SIL CL 3
- PFHd
- 3 x 10-8 1/h
- hop
- 8 h/day
- dop
- 220 days/year
- tzyklus
- 30 s
- EN 60204-1
- stop category 0
- Note
- The safety-related data are based on a load of 24 V / 1 A / DC-1 for the enabling paths. With higher load currents for the enabling paths and other requirement rates nop, the safety-related data vary from the given data and can be provided on request.
Dimensional drawing
Downloads
Safety relay module
Safety relay module SRM 21 RT2Article no.: 1179203Old article no.: 90560049
Standard version
contact us
