DatasheetSR360
Current and voltage monitoring relay for process applications
| Type | Monitoring relay for current and voltage signals in the process industry |
|---|---|
| Input | Current and voltage input |
| Output | 2 output relays with individually adjustable trip functions |
| Relay function | Monostable relays for safe tripping in case of power failure |
| Relay contact | SPDT relay with 6 A switching capacity |
| Configuration | High configuration flexibility via DIP switches |
| Setting | Trip point and hysteresis adjustable on the front |
| Display | 3 front LEDs for trip and supply voltage monitoring |
| Insulation | 4 kV insulation between input, output and supply voltage |
| Protection | Protective separation according to EN 50178 |
| Auxiliary supply | Universal 24 V AC/DC supply voltage |
| Mounting | DIN rail mounting |
| Current input | 0/4 to 20 mA or ±20 mA, selectable by switch |
| Current input impedance | 5 Ω |
| Current max. overload | 200 mA |
| Voltage input | 0 to 10 V or ±10 V, selectable by switch |
| Voltage input impedance | 1 MΩ |
| Voltage max. overload | 250 V |
| Relay contact output 1 & 2 | Single-pole changeover contact, SPDT |
| Contact | 250 VAC/DC, 6 A, 1500 VA |
| Relay function | Monostable, normally active or passive, selectable by switch |
| Alarm function relay 1 | High/low alarm, selectable by switch |
| Alarm function relay 2 | High/low alarm or power failure alarm, selectable by switch |
| Alarm indication | Alarm status indication via yellow LED |
| Adjustable alarm set point | 0 to 100 % of input range, front potentiometer |
| Adjustable hysteresis | 0 to 60 % of span, front potentiometer |
| Response time | Approx. 20 ms, fixed |
| Operating temperature | -20 to +60 °C / -4 to +140 °F |
| Galvanic isolation | 4 kVAC, 1 min between input / supply voltage / relay outputs |
| Relay 1 / relay 2 | 2.5 kVAC, 1 min |
| Supply voltage | 24 VAC/DC ±15 %, 48 to 62 Hz with AC supply |
| Power consumption | AC approx. 2 VA, DC approx. 1 W |
| Typical accuracy | Trip point ±0.2 % of span |
| Mounting | Rail according to DIN EN 50022, 35 mm |
