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 BH 9255 – Reversing contactor with current monitor

Brand

DOLD

Part number

BH 9255

Order number

0059576

Reversing contactor with current monitor

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Brand	DOLD
Housing width	112.5 mm, 45 mm, 67.5 mm
Approvals	UL
Enclosure design	Switch cabinet
Order number	0059576

The reversing contactor BH 9255 is used to reverse the direction of 3-phase asynchronuos motors by switching 2 phases (L1 and L2). An electrical interlocking disables the control of both directions at the same time. The reversing contactor has a short on and off delay time. When reversing the phases a switchover delay is guaranteed. The motor current is monitored in phase L1. If the current rises above the tripping value the device is able to switch off the motor.

Features

According to IEC/EN 60 947-1, IEC/EN 60 947-4-2
Switching at zero crossing
To reverse 3 phase asynchronuos motors up to5.5 kW / 400 V (7.5 HP / 460 V)
Electrical interlocking of both directions
Temperature monitoring to protect the power semiconductors
Measured nominal current up to 20 A
LEDs for status indication
Galvanic separation between control circuit and power circuit
With current monitor
45 mm; 67.5 mm; 112.5 mm width

Technical specifications

Approvals	UL
Enclosure design	Switch cabinet
Load current up to	20 A
Load voltage up to	3AC 24 – 480 V
Number of poles	3-pole
On/Off Input Control	AC/DC, DC
Signalling output	Yes
Temperature monitoring	Yes
Width	45 mm, 67,5 mm, 112,5 mm
Type	BH 9255

Available variants

Auxiliary voltage	AC/DC 24 V · AC 230 V · AC 400 V
Contact equipping	1 changeover contact
Control input	AC/DC 24 – 80 V r+/rl-/l+ · AC/DC24-80V r+/rl-/l+ · AC/DC 80 – 230 V r+/rl-/l+ · DC 24 V r+/rl-/l+ · DC24V r+/rl-/l+
Rated continuous current	4 A · 12 A · 20 A
Approvals and Markings	– · UL-listed C/US