Beckwith Electric M-2027 AC to DC Backup Power Supply

• Maintains the M-2001C/D  or M-6200 energized during power outages to

maintain the continuity of the communications loop

• Accepts power input from station auxiliary supply over a range of 105

Vac to 140 Vac (50 or 60 Hz)

• Fuse protected and transient suppressed, input and output

• Substation hardened -40° C to +85° C

• Conformal coated

• Includes 6 foot output cable and adapters for M-2001C/D and M-6200

controls

Input

105 Vac to 140 Vac at 50Hz/60Hz

Burden of less than 2 VA

Fuse protected (1.5 A)

Transient protected

Output

+12 Vdc nominal @ 1 amp

Fuse protected (1.5 A)

Transient protected

Transient Protection

Surge Withstand Capability:

IEEE C37.90.0-2002: 2500 V pk-pk oscillatory, 4000 V pk fast transient burst

IEEE C37.90.0-2002: 2500 V pk-pk oscillatory, 5000 V pk fast transient burst

High Voltage: All M-2027 input and output terminals will withstand 1500 Vac

RMS to chassis or instrument ground for one minute with a leakage current

not to exceed 25 mA, for all terminals to ground. Input and output circuits are

electrically isolated from each other, from other circuits and from grounds.

Radiated Electromagnetic Withstand Capability: All units are protected against

electromagnetic radiated interference from portable communications transceivers.

Environmental

Temperature range: -40° C to +85° C

Humidity: Operational to a maximum of 95% relative humidity.

Fungus resistance: A conformal coating is used on the printed circuit board

coating inhibit fungus growth.

Physical

Size: 7.32" long x 4.10" wide x 2.40" high (18.6 cm x 10.2 cm x 6.1 cm)

Approximate Weight: 2.0 lbs (.91kg)

Warranty

The M‑2027 is covered by a five year warranty from date of shipment.