Current Detector - Heater Burnout Detector

Self powered (When current is above 5A) Transistor, Triac or relay output

BO Detector Series Detect stalled motors or jammed conveyors with repeatability. The current detector works by sensing the AC current and activating at the specified set point. Sensing a repeatable specific trip-point, allows the detector to monitor multiple parallel loads. The BO series can detect stalled motors by sensing the out of range current. In 3-phase operation (using a delta or 4-wire-Y configuration), the Transtronics current detector allows one sensor to monitor all three phases for an unbalanced condition. Upon detection, it lights the LED and optionally activates an output. Four basic output versions are available: LED lamp only, open collector, Triac and form C relay. Options include: large pass opening, adjustable set-point and remote mounting LED.  

Applications:

• Stalled Motor Detector
• Load Shedding
• Plastic Extrusion Injection Molding
• Tank Heaters
• Process Heaters
• Dust collectors

 

Specifications
Set point current range (specify with order)	to 1KA  (When setpoint is below 5A 5Vdc must be applied to pin 3)
Set point accuracy	+/-15% (5% on adjustable units) 10% dead-band
Output current Relay option	4A @ 220 Vac
Triac output version	2A @ 220 Vac
Transistor output option	20 mA 24V (Pin 8 negative.; Pin 6 positive)
Ambient Operating Temperature	0 C to 60 C
Octal Case Size	2.75 X 1.75 X 2.375 inches (excluding octal pins)
Pass through opening	22.2mm [0.875"] Optional 31.7mm [1.25"] opening available
Adjustable versions available
Relay contacts	5A@30Vdc/120Vac see drawing below for pin out
Relay power supply	12V or consult factory

[] - denotes legacy units

Operation

• In most configurations, LED and optional outputs are active on high current.
• When applied in both the Delta and 4-wire-Y 3-phase configurations, LED and optional outputs are active on unbalanced load.
• The calibrated set point allows sensing of single failure in parallel connected loads.
• The Delta configuration requires three wires threaded through the sensor; make sure you have enough room.
• The 4-wire-Y 3-phase configuration provides a simple neat installation with minimal wiring.

Large opening option

order option -LD

Wiring Diagrams

One or 3 Wire(s) with Ac current are threaded through opening.
No electrical contact is made with the current carrying wire

Remote mount LED wiring Pin 2 goes to + (plus) or the long lead
Pin 4 goes to - (minus) or the short lead. No dropping resister is required
Remote mount LED is not compatible with Triac version 

Din rail mountable bases are available as an accessory

Let Transtronics help you with your application. We want to help you solve your automation problems. 

 

Order number	Price	Description
BO-LED	$79.95	LED only
BO-OC	$99.95	Self powered Transistor output
BO-TRIAC	$109.95	Self powered 2A Triac output
BO-RELAY	$119.95	4 A Form C Relay output - requires external power
-RM	add $15.95	Remote mounted LED wiring option
-LD	add $34.95	Large pass through opening option 1.25" (31.7mm)
-ADJ	add $34.95	Adjustable set point option
-L24	add $19.95	External 24 power to LED (Pin 7) option
OCT-SOC	$5.97	Din-rail/panel mountable octal base accessory  Socket data sheet
	Minimum order $20.00 Domestic Payment Methods: Personal checks Money order Bank checks Visa MasterCard Sorry No CODs	Domestic shipping & standard handling $8.25 - up to 3 Lbs. All shipping is by weight if more than 3 Lb.

Prices subject to change.

3209 W.9th street Lawrence, KS 66049 USA

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