
DSYDST / DSY Slide Wirewound Variable Resistors, BC1 Variable Wirewound Rheostats
Adjustable Resistors & Rheostats ZENITHSUN DSY

Variable wirewound resistors with continuous adjustment. DST (100 W – 2 kW) and DSY (800 W – 20 kW) are tubular rheostats: chromium-alloy wire on a ceramic tube under a non-flammable coating, with a slider running along the winding; temperature control and a digital scale are available on request. BC1 (12.5–500 W) are tray rheostats: winding on a C-shaped ceramic ring, carbon brush on a rotating shaft, up to six units stacked to 3 kW. Resistance 0.5 Ω – 15 kΩ, tolerance ±5 or ±10 %. DSTB/DSYB adjustable load banks up to 60 kW are built on DST/DSY.
Specifications
- Series
- DST, DSY (tubular slide type), BC1 (rotary tray type)
- Power range
- DST: 100 W – 2 kW; DSY: 800 W – 20 kW; BC1: 12.5–500 W, stacks up to 3 kW (6 × 500 W)
- Resistance range
- DST/DSY: 1 Ω – 15 kΩ; BC1: 0.5 Ω – 5.1 kΩ
- Tolerance
- ±5 %, ±10 % (J, K)
- TCR
- ±200…±400 ppm/°C
- Adjustment
- continuous: slider along the tube (DST/DSY), rotating shaft with carbon brush (BC1)
- Options
- temperature control and digital scale (DST/DSY); DSTB/DSYB adjustable load banks 100 W – 60 kW
Applications
- Laboratory and teaching benches at universities and research institutes
- Verification and calibration of instruments
- Adjustable load for equipment testing
- Current and voltage regulation in AC/DC circuits
- Speed control of fan, mixer and power-tool motors
We will select the right size for your task and prepare a quotation under a direct SDS contract.







