ABB CM-ESS.1 Catalog Page

Data sheet

Voltage monitoring relays CM-ESS.1

For single-phase AC/DC voltages

The CM-ESS.1 is an electronic voltage monitoring

relay that provides reliable monitoring of voltages

as well as detection of phase loss.

All devices are available with two different terminal

versions. You can choose between the proven

screw connection technology (double-chamber

cage connecting terminals) and the completely

tool-free Easy Connect Technology (push-in

terminals).

2CDC 251 052 V0011

Characteristics

– Monitoring of DC and AC voltages (3-600 V) – TRMS measuring principle – One device includes 4 measuring ranges – Over- or undervoltage monitoring conﬁgurable – Hysteresis adjustable (3-30 %) – 3 supply voltage versions

Approvals / Marks

A C R K E L / a b

– Precise adjustment by front-face operating controls – Screw connection technology or

Easy Connect Technology available

– Housing material for highest ﬁre protection classiﬁcation

UL 94 V-0 – Tool-free mounting on DIN rail as well as demounting – 1 c/o (SPDT) contact – 22.5 mm (0.89 in) width

Classifcations:

EN 50155, IEC 60571, NF F 16-101/102, EN 45545-2

EN 50155, IEC 60571 Temp.

class

Voltage supply Vibration and shock S1 S2 C1 C2

n n n

acc to IEC/EN 61373

Cat 1, Class B no

– 3 LEDs for status indication

NF F 16-101/102 EN 45545-2

Order data

Flammability index

I2 F2 HL3

Opticity and toxicity of smoke index

Risk level achieved

Voltage monitoring relays

Type Rated control supply voltage Connection technology Measuring ranges Order code

CM-ESS.12P 24-240 V AC/DC

110-130 V AC 1SVR740831R0300

220-240 V AC 1SVR740831R1300

CM-ESS.12S 24-240 V AC/DC

110-130 V AC 1SVR730831R0300

220-240 V AC 1SVR730831R1300

Push-in terminals 3-30 V, 6-60 V, 30-300 V, 60-600 V

Screw type terminals 3-30 V, 6-60 V, 30-300 V, 60-600 V

1SVR740830R0300

1SVR730830R0300

Coated pcb.

Accessories

Type Description Order code

ADP.01 Adapter for screw mounting 1SVR430029R0100

MAR.12 Marker label for devices with DIP switches 1SVR730006R0000

COV.11 Sealable transparent cover 1SVR730005R0100