SD834
ABB
Overview
The SD834 is a Power supply from ABB. It delivers stable control power at regulation at max. current < 10 mV / <100 mV for the ABB product portfolio racks.
Application & Technical Notes
As a power supply, the SD834 is intended for deployment in panel-based control cabinets and machine enclosures where the ABB product portfolio equipment is installed. It conditions and distributes the low-voltage supply that powers the controller, I/O and communication modules on the same rack.
Key published characteristics include a regulation at max. current < 10 mV / <100 mV rating. These values should be confirmed against the current manufacturer datasheet before final selection, as options and suffixes vary by configuration.
Maintenance & Diagnostics
Ensure adequate ventilation and do not overload the supply beyond its published current budget; consider redundancy for critical racks. Always de-energise the circuit and follow lock-out/tag-out before handling; refer to the official instruction bulletin for service procedures.
Sourcing & Procurement
When sourcing the SD834, distinguish three supply tiers: (1) genuine ABB stock from an authorised distributor; (2) compatible equivalents or surplus/NOS (new-old-stock) from third parties; (3) alternative parts offering equivalent function. Genuine supply carries the full warranty and traceability; compatible or alternative items may be cheaper but should be validated for form, fit, firmware and certification before use in a live system. PLCXpert publishes this page as an independent reference and does not sell the part — verify every claim with the manufacturer or your distributor.
Match the output voltage and current to the ABB product portfolio load and allow headroom for future expansion. Lead times and pricing vary by region and lifecycle status; obtain a current quote from an authorised channel rather than relying on stale listings.
Check live stock, lead time and request a quote for SD834 (opens in a new tab)
Frequently Asked Questions
What is the SD834?
The SD834 is a power supply from ABB. It is described by the manufacturer as: Power supply.
What are the key technical ratings of the SD834?
Its published highlights include regulation at max. current < 10 mV / <100 mV. Full electrical, mechanical and environmental limits are listed in the manufacturer datasheet and should be confirmed for your exact suffix.
How is the SD834 mounted or installed?
Installation follows the standard ABB product portfolio mounting practice for this device class; refer to the installation manual for exact dimensions and torque.
Is the SD834 compatible with my controller?
It belongs to ABB's automation product portfolio. Confirm the specific rack, firmware revision, slot rules and configuration with the controller documentation before purchase, as compatibility depends on the exact system build.
What should I check before buying the SD834?
Verify the genuine part number and suffix, confirm it matches your platform and ratings, check the current lifecycle/availability status, and buy from an authorised distributor. PLCXpert provides this reference only and does not sell the component.
Specifications
The SD834 Power Supply Units are designed to meet all the applicable electrical safety data stated by the EN 50178 harmonized European Standard Publication and the additional safety and function data required by EN 61131-2 and UL 508.
Dimensions
| Note | Width 82 mm(3.23") Depth 127 mm(5.0") Height 124 mm (4.88") Weight (lbs.) 1200 g (2.6 lbs.) Mounting spacing W mm 15 mm (0.59") Mounting spacing H mm 40 mm (1.57") |
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Reproduced from the manufacturer's published data. Values marked "Not available" are absent from the source document.