ABB DIN Rail Current Monitoring Relay, 0.1 → 1 A, 10 → 100mA, 50 → 60Hz, 1 Phase, DPDT
- RS Stock No.:
- 775-8037
- Mfr. Part No.:
- 1SVR740840R0400 CM-SRS.21P
- Manufacturer:
- ABB
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View all Monitoring Relays
- RS Stock No.:
- 775-8037
- Mfr. Part No.:
- 1SVR740840R0400 CM-SRS.21P
- Manufacturer:
- ABB
- COO (Country of Origin):
- DE
Product overview and Technical data sheets
Legislation and Compliance
- COO (Country of Origin):
- DE
Product Details
CM-SRS Current Monitoring, Single Phase AC/DC
,
Depending on the configuration, the current monitoring relays CM-SRS.1 and CM-SRS.2 can be used for over- or undercurrent monitoring in single-phase AC and/or DC systems. The current to be monitored (measured value) is applied to terminals B1/B2/B3-C. The devices work according the open-circuit principle.
If the measured value exceeds resp. drops below the adjusted threshold value, the output relay(s) energize(s): on the CM-SRS.1 immediately, on the CM-SRS.2 after the set tripping delay TV.
Monitoring of DC- and AC-currents: CM-SRS.x1: 3mA - 1A and CM-SRS.x2: 0.3-15A
RMS measuring principle
One device includes 3 measuring ranges
Over- or undercurrent monitoring configurable
Hysteresis adjustable from 3-30%
Tripping delay TV adjustable 0.1-30s
CM-SRS.1: 1 c/o contact
CM-SRS.2: 2 c/o contacts
22.5mm width
3 LED's for status indication
RMS measuring principle
One device includes 3 measuring ranges
Over- or undercurrent monitoring configurable
Hysteresis adjustable from 3-30%
Tripping delay TV adjustable 0.1-30s
CM-SRS.1: 1 c/o contact
CM-SRS.2: 2 c/o contacts
22.5mm width
3 LED's for status indication
Specifications
| Attribute | Value |
| Monitoring Application | Current |
| Contact Configuration | DPDT |
| Electrical Phase | 1 |
| Current Sensitivity | Overcurrent, Undercurrent |
| Minimum Current Sensed | 0.1 A, 3 mA, 10mA |
| Maximum Current Sensed | 1 A, 30 mA, 100mA |
| Time Delay | 0 s, 0.1 → 30s |
| Frequency Sensing Range | 50 → 60Hz |
| Series | CM-SRS |
| Mounting Type | DIN Rail |
| Height | 85.6mm |
| Length | 103.7mm |
| Dimensions | 103.7 x 22.5 x 85.6mm |
| Operating Temperature Range | +60°C |
| Terminal Type | Push In |
| Maximum Operating Temperature | +60°C |
| Minimum Operating Temperature | -20°C |
| Width | 22.5mm |
| Current Range | 0.1 → 1 A, 10 → 100 mA, 3 → 30mA |