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CM-ESS.MS – 24-240V AC/DC, measuring 3-30V, 3-60A, 30-300V and 60-600V The CM-ESS.MS is a multifunctional voltage monitoring relay from the CM single-phase monitors range. This monitoring relay operates with a rated control supply voltage of 24 – 240 V AC / DC and has a 2 c/o (SPDT) output with contacts rated at 250 V / 4 A. It provides a RMS measuring principle for DC and AC voltages with 4 measuring ranges: 3-30 V, 6-60 V, 30-300 V and 60-600 V. The CM-ESS.MS offers selection of over- or undervoltage monitoring, open- or closed-circuit operating principle, with or without latching function. The hysteresis is adjustable within a range of 3 to 30 % of the threshold value. The tripping delay and the start-up delay are adjustable over a range of instantaneous to 30 s (0, 0.1-30 s). A sealable transparent cover for protection against unauthorized changes is available as accessory. The device offers screw connection technology with double-chamber cage connection terminals.
1SVR730830R0500 – CM-ESS.MS Voltage monitoring relay ABB Voltage Monitoring Relays is a genuine ABB electrical component designed for industrial automation, motor control, and power distribution applications.
ABB products are widely used across commercial and industrial installations where reliability, safety, and long operational life are required.
Voltage Monitoring Relays | Timers and Control Relays | Modular Protection Relays
Data supplied by ABB. Please confirm against the official datasheet before ordering.
Official ABB documentation for this order code.
Contact us for bulk pricing, lead times and ordering codes. Add the item to your cart to order online, or request a quotation if you need a formal quote document, project pricing or a written lead time.
Some items are held off-site rather than in our Johannesburg warehouse. Where that is the case, availability is confirmed once a quote is requested or an order is placed, and the lead time is confirmed in writing on your quotation.
Nationwide delivery across South Africa, export delivery to the rest of Africa on request, and collection available from our Johannesburg branch.
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