What products does Hirotronix supply?

Hirotronix supplies industrial automation sensors, machine safety systems, operator controls, level measurement systems, and automation components.

Where is Hirotronix located?

Hirotronix is located in Mississauga, Ontario, Canada.

Does Hirotronix provide worldwide service?

Yes, Hirotronix supplies automation and sensor solutions worldwide.

DOLD SP 9277 – Over- and Undercurrent Relay

Brand

DOLD

Part number

SP 9277

Order number

0050763

Over- and Undercurrent Relay

Detects over- and undercurrent
With built in current transformer for 0.5 … 100 A
IL 9277, SL 9277 with 4 programmable ranges
Separate setting for over- and undercurrent
Settable time delay

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Brand	DOLD
Housing width	70 mm
Output contacts	2 x 2 C/O contacts
Enclosure design	Switch cabinet
Phases	3
Order number	0050763

The overcurrent and undercurrent relays of the VARIMETER series are suitable for monitoring currents in three-phase and alternating current networks. If the current exceeds or falls below the switching point, the relays change state after the time has elapsed. The relays can be used universally thanks to the adjustable switching point. The adjustable time delay can be used to take current peaks into account or to suppress them if necessary. Operational readiness and over- or undercurrent are indicated by an LED.

Features

According to IEC/EN 60255-1
IP 9277, SP 9277, SP 9277CT: 3-phaseIL 9277, SL 9277, SL 9277CT: Single phase
Measuring ranges from AC 0.1 … 15 A
Settable 0.1 … 1 IN
Fixed hysteresis approx. 4 %
LED indicators for over-, under- and normal current
Optionally energized on trip (output relay activated in case of error)
Devices available in 2 enclosure versions:- I-model, e.g. IL _ _ _ _, depth 61 mm with terminals at the bottom for installations systems and industrial distribution systems according to DIN 43880- S-model, e.g. SL _ _ _ _, depth 100 mm with terminals at the top for cabinets with mounting plate and cable duct
DIN rail or screw mounting
IL 9277, SL 9277, SL 9277CT: 35 mm widthIP 9277, SP 9277, SP 9277CT: 70 mm width

Technical specifications

1- / 3-phase	3
Auxiliary voltage	AC, AC/DC
Enclosure design	Switch cabinet
Measuring range	AC 0,1 – 15 A
Operate delay	Yes
Output contacts	2 x 2 C/O contacts
Width	70 mm
Type	SP 9277

Available variants

Auxiliary voltage	AC/DC 24 V · AC 220 – 240 V · AC 400 – 440 V
Contact equipping	2 x 2 changeover contacts
Measuring range	0,1 – 1 A · 0,5 – 5 A · 1 – 10 A · 1,5 – 15 A
Time delay	0,1 – 20 s
Variant	3-phase current relay. De-energized on trip · 3-phase current relay. Energized on trip · 3-phase current relay. Undercurrend de-energized on trip. Overcurrent energized on trip